HALOOL FAQ

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  • Shipping & Return
  • Glasses Frames & Accessories
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Accounts & Payment

How to order your HALOOL glasses

How to order the best glasses for you at HALOOL

1.Find a frame you love!

See exactly how any frame looks on your face with our Virtual Try-On tool.

2.Click “Select Lenses” to begin the order process.

You’ll see up to four options based on lens availability for the frame style selected:

  • Single-vision
  • Progressive Lenses
  • Readers
  • Non-prescription

3.Enter your prescription and PD or select a magnification strength for readers.

4.Choose a lens type.

5.Choose a lens index.

HALOOL will automatically recommend the index best suited to your prescription.

6.Click “Add to Cart”. You will be automatically taken to the shopping cart, where you can continue

shopping or proceed to checkout.

From now on! Waiting for your new HALOOL to arrive!

How to Make a Guest Purchase?

You can buy eyeglasses online at HALOOL as a guest!

This feature allows customers to complete their purchase without creating a new account.

Follow the normal steps to add the glasses to your cart and click“Proceed to Checkout”, enter your

email and address, and we will send you an email confirmation once your order is complete.

Note: Standard return policies and conditions apply.

How to Edit Your Shopping Cart

As a brand that sells fashionable glasses frames, we realize that picking out a pair of glasses to match your outfit and fashion attitude takes a lot of thought, maybe you need some time to decide whether or not to buy them, or maybe you want to add and remove them from your shopping cart until you think, "That's it!". .

In any case, at any of these stages, HALOOL offers you the ability to easily edit your shopping cart! Your prescription entries are displayed next to each frame in the cart, so you can confirm the details before checking out.

When you click on the edit link, you will be taken to your additions page, your original information will be remembered, and you can change your selections by clicking on the information you want to change (e.g. prescription, OD/OS values, lenses, etc.).

Order Status

To check your order status, simply follow these easy steps:

  • Log in to your account.
  • Click on "My Order" under the "My Account" tab in the top right corner of the page.
  • If your order has been shipped, you can track it by clicking on the tracking number provided.
  • You will now be able to see the status of your order, including whether it has been shipped or is still being processed.

Check My Order Status Now.

Order Status

Processing - Your order is being manufactured

Shipped - Your order has shipped

Shipping & Return

Shipping

Shipping Do you offer free shipping?

As a glasses online store, HALOOL is dedicated to providing you with a more convenient and affordable eyewear shopping experience.

When you buy glasses from HALOOL online, we offer free shipping on any single order that meets or exceeds 45$ (Standard Delivery Only)!

We aim to make buying glasses online simpler. Enjoy the affordable and convenient services of HALOOL!

Shipping Delays

We will make our best effort to deliver your package ASAP. However, additional time may be required due to external factors beyond our control that can occasionally cause delays, including weather and natural disasters, customs, address issues, and supply chain disruptions. For the latest shipping service alerts, please visit the following link or consult your local mail service:

International Service Disruption Updates

What is the shipping cost? How long does it take?

Standard shipping :

$4.95 shipping $0 delivery time 14~18 days

Advanced shipping :

$9.95 Delivery time 10~14 days

Shipping FAQ

1 I just placed several orders. Can I combine shipping?

Please contact our halool customer service team and we can assist you in consolidating orders prior to shipping. Otherwise, pre-shipment changes cannot be made directly, or you can contact the HALOOL customer service team to cancel the order and place a new one.

2. I live in one country but want to ship to a different country. Is this possible?

Yes. The shipping address does not have to be the same as the billing address. To ship your order to a different country, enter the address and country during checkout.

3. Can I change the shipping address or shipping method?

to change your shipping information. We’ll be happy to check the status of your order and make any changes if possible.

4. What do I do if my package is damaged during shipping?

Contact us immediately! We will gladly replace your damaged glasses.

Warranty & Return

We hope you enjoy the glasses frame you ordered! However, if you are not 100% satisfied, we've simplified the return process to ensure your shopping experience is always pleasant.

By following our return policy, we can continue to provide top-quality products and services to our valued customers. If you have any questions or need assistance with your return, please do not hesitate to contact our customer support team.

365 days Warranty

HALOOL offers a 365-day warranty (from the date of receipt of the product) covering obvious defects in materials and workmanship. This warranty does not cover damage caused by accident, neglect or improper care.

15 days exchange and return

Unsatisfied products can be exchanged or refunded within 15 days of receiving the goods. If the product expires within this 15 day period, non quality issue refund/exchange requests cannot be processed. Within the 15 day validity period, each order can be exchanged/returned once for any reason. Please note that the "exchange order" does not apply to another exchange/return.

If we encounter errors in processing orders, such as prescribing the wrong prescription or sending the wrong item, we will provide prepaid shipping labels to return the product and either replace the product or deposit a full refund in your HALOOL account as a gift card, or refund the original payment.

If it was your mistake during the ordering process, we are sorry to say that we will not be responsible for providing a prepaid shipping label, and you will have the option of returning the item yourself. Please note the following:

1.Original shipping fees (if any) are non-refundable if you request a refund or return. Refunds (if any, excluding shipping fees) will be processed within 3-7 days after we receive your returned package.

2.We will ship the new item to you first to accommodate your needs. Once you receive the new item, please return the unsatisfactory item to us. The price of the new item should match the original item. If there is a price difference between the two frames, you will need to make up the difference.

If you need to return or exchange an item, please contact our customer service via  

or email us at support@halool.com.

Once the refund is processed, the amount will be returned to your original account within three business days.

Order modification/cancellation

If you would like to modify/cancel your order, please contact our HALOOL customer service team. For change of shipping address (except country) / billing address or combined order shipment, we can help to update it before shipment. Otherwise, pre-shipment modifications cannot be made directly and you can contact the HALOOL Customer Service team to cancel the order and place a new order.

Additionally, for any modification/cancellation requests, if the item is already in the processing stage, please refer to the table below to see the additional cost as a processing fee.

cost

Important Notice

Regarding Returns:

1. Please do not send returns to the sender's address on the package. This is not the return address and will affect the return processing. You can only mail it to the return address provided by our customer service team.

2. Please ensure that your returned package does not accidentally contain non-HALOOL items. We are not responsible for returning these items to you.

3. After returning the package, please contact our customer service department to provide the tracking number of the returned package so that we can proceed to the next step as soon as possible.

Regarding Refunds:

1.After the refund, you can choose to have your original payment refunded (the original shipping cost on the order (if any) will not be refunded) and receive a gift card for merchandise in the same amount as the original order (excluding shipping cost), and the gift card can be used to purchase new merchandise.

2.Refunds will be issued in the original form of payment. Unfortunately, due to shipping delays, your refund may take an additional 3-7 business days to process. Thank you for your patience and understanding. As part of PCI compliance, refunds will not be issued to any card other than the credit card used on the order.

Glasses Frames & Accessories

Frames FAQ

Do you have branded frames?

All of our frames are HALOOL branded frames.

What are the most popular or trendy frames?

As an online eyewear buying brand that celebrates fashionability and individuality, you can rest assured that you will be able to choose your favorite frames on the home page, which are carefully styled by our designers to match the most popular frame trends of the moment.

Can I get frames in different colors and sizes?

Most of our frames are available in multiple colors. If other color options are available, they will be shown in the top corner of the frame preview or below the frame on the product page.

Most of our frames come in one size, but some come in multiple sizes. If this is the case, details will be listed under the product description. When searching for frames, you can also use the size filter to filter by frame size.

Will this frame fit my prescription?

When you select a frame and proceed to order that frame, our website will alert you if the frame does not fit your prescription.

I have a lot of frames I like. How do I save them?

To save your favorite frame, click on the heart icon to save the frame to your favorites. You can also view it in your account under "My Wishlist".

How to find your frame size?

How to measure the size?

Not sure what size your glasses are?

If you already have frames that fit, you can measure the frame size with a millimeter ruler or cloth tape measure.

Frame width: the width of the frame between the two temples.

Lens width: The horizontal diameter of the lens. Doctors may refer to this as "eye size".

Lens height: The vertical height of the highest point of the lens.

Nose Width: The portion of the frame between the lenses that spans the bridge of the nose.

Lens leg length: The length of the lens leg that rests on the ear, from the screw on the hinge to the end.

measure

What do the numbers on my frame mean?

Some manufacturers will print on the inside of the temples a a series of three numbers.  These numbers indicate the lens width, the nose bridge size, and the length of the temples in millimeters.

frame_leg

Knowing these numbers can help you choose similarly sized lenses when buying new frames.

How To Choose a Frame Material

Choosing the best frame material depends on the features you are looking for. The following categories can help you decide:

Weight

If you want an ultra-light frame, choose one that weighs 15 grams or less. Many of our plastic and metal frames are lightweight.

Material

You can choose between metal or plastic. Metal tends to be lighter. Plastic frames tend to be more durable

Colors

Plastic frames tend to have more color options, especially acetate, which is made from plant-based plastic that is strong, flexible and comfortable to wear. Another advantage of acetate frames is their vibrant colors and patterns - so style won't be an issue!

Material types and related characteristics

Acetate/plastic

Lightweight

Hypoallergenic

Easy

Adjustable

Metal

Strong

Durable

Acetate Metal Mixed

Lightweight

Durable

Finding the best glasses for your face shape

Choosing a pleasing pair of glasses is easy if you know your face shape. Find your face shape below to see our suggestions for matching frames. While these tips are designed to help you find the most compatible style of glasses, there are no hard and fast rules for eyeglasses. Whichever frame you choose, if you like it, you'll feel good about it - and feeling good always looks great.

Oval Face

With balanced proportions, a slightly curved jawline and slightly narrower than the forehead, an oval face offers the most flexibility in frame choice.

Most flattering frames

-Most styles suit oval faces!

-Women: rectangular, square, aviator styles

-Men: Rectangular, square, browline style

Round Face Shapes

Round faces are usually the same width as length and lack prominent cheekbones.

Most flattering frames

-For women, big, bold styles draw attention to the eyes and make the face appear smaller, while for men, rectangular and square frames can offset a round face shape and create a more masculine appearance.

-Women's: rectangular, square, rounded

-Men's: rectangular, square, aviator, browline

Square Face

Square faces usually have a wide, angular jawline and an equally wide forehead.

Most flattering frames

-For women, these frames flatter the face while adding softness. For men, the frames add balance and structure.

-Women: Browline, cat-eye, rounded

-Men: Browline, Oval, Rectangle

Diamond Face

A diamond-shaped face is characterized by a well-defined jawline, prominent cheekbones, and a narrow forehead.

Most flattering frames

-For women, round and oval frames soften angular features, while cat eye frames add volume around narrow cheekbones. Men can choose round or browline frames to balance facial features.

-Women: oval, round, cat-eye

-Men: oval, round, browline

Pear-shaped face

A pear-shaped face is characterized by a wider jawline and chin, a narrower forehead, and less prominent cheekbones.

Most flattering frames

-Browline frames can bring more balance to a narrow forehead, but anyone can opt for the universally popular aviators.

-Women: Browline, Oval, Aviator

-Men: Browline, Oval, Aviator

Heart-Shaped Face

Heart-shaped faces usually have a wider forehead, prominent cheekbones, and a narrow chin.

Most flattering frames

-Round frames can soften the look of an angular heart shape, while rectangular frames add balance.

-Women: rectangular, round, geometric

-Men's: Rectangular, Round, Aviator

How to choose between full frame, half frame

Full-rimmed glasses are very popular, especially the nerdy kind. They are usually more durable than half-rimmed or rimless frames. If your vision is too poor for half-rimmed or rimless glasses, then full-rimmed glasses will be the way to go.

Half-rimmed glasses are good for people with thin faces. Half-rimmed glasses reveal more of your face than full-rimmed glasses and are more durable than rimless frames.Selecting a flattering pair of glasses is easy if you know your face shape. Find your face shape below to see our recommendations for complementary frames. While these tips are meant to help you hone in on the most complementary eyeglass styles, there are no hard-and-fast rules when it comes to glasses. No matter what frame you pick, if you love it, you'll feel good—and feeling good always looks great.

Lenses

Lenses & Lens Types FAQ

What are polycarbonate(PC)lenses?

Polycarbonate lenses are impact resistant, stronger and lighter than standard lenses, making them ideal for use in children's and sports eyewear, or for anyone who doesn't take their eyewear seriously. Polycarbonate lenses offer good protection because they are less prone to breakage and can absorb larger impacts, reducing the risk of eye injuries.

What is the difference between color-changing lenses, polarized lenses and tinted lenses?

Photochromic lenses are clear indoors and darken in color outdoors.

Tinted lenses are so thorough that only one tint is needed, indoors or outdoors.

Polarized lenses are the same color indoors and outdoors and work better than tinted lenses to filter out harmful UV rays.

Select Prescription Lens Type

Some people need to see at a distance as well as read. Instead of getting a pair of mono-optic glasses for each situation, progressive glasses may be a more convenient option. Unlike monoculars, progressives are multifocal lenses with multiple focal points, such as distance and near.

People listed by number in the ADD section of their eyeglass prescription needprogressives or presbyopes. This is simply because your eyes need the extra diopters on top of your distance prescription to see up close.

Single-Vision

Single vision lenses are the most common type of prescription lens. This lens type is characterized by one field of view for the entire lens, or one prescription power, and is used to correct nearsightedness or farsightedness.

Readers

If you've recently found yourself squinting at menus, books, or cell phone screens, HALOOL Presbyopia can help!

Presbyopia has non-prescription presbyopia glasses that provide over-the-counter magnification to help you see near objects more clearly.

If you need prescription presbyopes, you can also customize your very own presbyopes from a prescription order.

To get started with your order of HALOOL presbyopes, choose a stylish frame from one of the two categories below:

Ready-made presbyopes

Simplify the ordering process. Choose from a range of frame styles, select your reading prescription, and add the glasses to your shopping cart!

-Reading power ranges from +0.25 to +6.00.

-No additional customization required.

Customizable presbyopes

Flexibility to select any compatible frame from HALOOL's extensive catalog and customize lens options. This option is perfect for those seeking a personalized fashion solution tailored to their unique preferences.

-After selecting a compatible frame, you can begin the customization process by selecting "Presbyopia" as the lens type.

-Reading ability ranges from +0.25 to +10.00.

-Enhance your presbyopes with our custom lens options.

We will create custom presbyopes just for you!

Things to know about presbyopes:

Presbyopes are not a replacement for corrective lenses; they are intended for near vision and reading only, not for driving, vehicle operation, or distance vision. Only a professional eye exam can determine your eye health and vision needs. Always consult an eye care professional for regular eye exams.

Progressives

Standard progressive lenses are multifocal lenses with three zones of vision: distance, intermediate and near. Unlike bifocal lenses, there is no visible boundary between each zone. They have a seamless, invisible design with a "progressive" change in power throughout the lens. Many people confuse "bifocals" or "trifocals" with "progressives," but the key is to remember that bifocals and trifocals have visible boundaries on the lens, while progressives do not.

Because progressive lenses do not have boundaries on the lenses, they are a more popular type of multifocal lens than bifocal lenses.

Progressive eyeglasses are typically for people over the age of 40 who already wear distance glasses but now need enhanced near vision for reading and enhanced mid-distance vision for computer use. Instead of having three pairs of glasses for each need, progressive lenses provide one-stop convenience.

The primary vision area of progressive lenses is distance, with a smaller area at the bottom of the lens for near vision and a smaller area in the center for intermediate distance vision. Standard progressive lenses are ideal for use in all-around eyewear, focusing on distance vision activities such as driving and walking, with enough area in the lens for near vision activities such as reading and computer use. The left and right sides of the lens, or "lobes," are intentionally blurred to achieve a stealthy design. The clearest vision in progressive lenses is from top to bottom in the center of the lens.

It usually takes some time to get used to wearing new progressive lenses. For new wearers, try getting used to your glasses gradually. Increase wearing time each day for the first 2-3 weeks to get used to the lenses. For example, wear them for 1-2 hours on the first day, then increase by 2 hours each day until you are comfortable. Try them on at home before driving. Remember, you will need to turn your head and move your eyes to find the "sweet spot" for the activity you are focusing on.

For experienced wearers, a new pair of progressive lenses - even of the same power - often requires readjustment. This is because progressive lenses, like shoes, are different. Like two leaves of a tree, they won't be exactly the same and won't feel the same due to shape, style, brand, fit, material, etc. Similarly, the design of the progressive lenses, the shape of the frames and many other factors will affect the adjustment period.

In short, it helps to wear your glasses as much as possible while adjusting to your new progressive lenses.

Lens Function

Polarized lenses

The principle of polarized lenses is based on the concept of polarized light. While natural light consists of light rays vibrating in many different directions, polarized light is light that vibrates in only one specific direction. Polarized lenses contain a direction of polarization inside them that allows only light from a specific direction to pass through, while blocking light from other directions. In this way, polarized lenses are effective in filtering out glare reflected from non-metallic surfaces, as well as strongly reflected light from water, snow, glass, and so on.

The uses of polarized lenses include:

Driving: Polarized lenses can reduce glare reflected from road surfaces, improving visual clarity and increasing safety when driving.

Outdoor activities: During outdoor activities such as fishing, skiing, hiking, and other outdoor activities, polarized lenses can help reduce glare from water, snow, or other surfaces, providing a better visual experience.

Eye Protection: Polarized lenses can reduce eye exposure to intense light and protect the eyes from UV rays and other harmful rays.

Visual Comfort: For people who are sensitive to light, polarized lenses can reduce eye fatigue and discomfort caused by glare.

When choosing polarized lenses, consider the visual needs and lifestyle of the individual. Polarized lenses are available in different colors and transmittances and can be selected for different light conditions and activity environments. Polarized lenses can also be combined with anti-reflective coatings and UV protection to provide more comprehensive visual protection and comfort.

Photochromic lenses

Photochromic lenses, also known as light-sensitive lenses. The core technology of color-changing lenses is photochromic material. When this material is exposed to ultraviolet or visible light, the molecular structure changes, which causes a change in color. When the intensity of light increases, the molecular structure in the photochromic material changes, making the lenses darker; when the intensity of light decreases, the molecular structure returns to its original state and the lenses become lighter in color. This process is reversible, so color-changing lenses are able to achieve automatic adjustment.

(1) Protect your eyes:

Photochromic lenses can adjust the amount of light entering your eyes in real time, reduce the irritation of bright light to your eyes, protect your eyes from UV rays, and reduce the risk of cataracts, macular degeneration and other eye diseases.

(2) Improve visual comfort under bright light:

Under strong light environment, photochromic lenses can darken quickly, reduce glare, make eyes feel comfortable and reduce fatigue.

(3) Adapt to different light conditions:

Photochromic lenses can automatically adjust the color shade according to the light intensity, so that the eyes can get clear vision in different light environments.

(4) Fashionable and practical:

HALOOL photochromic lenses are not only practical, but also available in a variety of colors and styles to meet your needs for fashion.

FAQ

Do photochromic lenses change color only outdoors?

Photochromic lenses are sensitive to both ultraviolet and visible light, so they may change to some extent indoors if there is a strong source of ultraviolet light, such as some fluorescent lamps.

Who are photochromic lenses suitable for?

-Photochromic lenses are suitable for most consumers who need protection from bright light and UV rays. If you need to spend a lot of time outdoors or in scenes with strong UV rays, get yourself a pair of photochromic lenses that will make your eyes more comfortable.

-Photochromic lenses are suitable for fashionable people, one pair of lenses can be used in two styles, satisfying both your daily use and fashion accessory needs!

Blue light blocking lenses

What is Blue Light?

In contrast to UV light, blue light is emitted all around us every day - both indoors and outdoors, from the screens of our digital devices to the sun, blue light is the largest source of light. Prolonged exposure to certain wavelengths can cause eye strain and discomfort, but don't worry! Our blue light filtering glasses and computer screen glasses can reduce your exposure to potentially harmful blue light. Learn how to choose the best lenses for your blue light prescription glasses.

How does blue light affect us?

Our constant contact with smartphones, tablets, and laptops can lead to headaches, sore eyes, and a stiff neck - all symptoms of digital eye strain. Spending most of our waking hours in front of a screen, combined with the harmful blue-violet light* emitted by digital devices, it's no surprise that our eyes are working harder than ever.

*Disclaimer: Harmful blue violet light is between 415-455nm.

If you've ever worried about the effects of digital screens on your eyes, you've probably heard of "blue light" and maybe even searched for ways to protect your eyes from it. Blue light glasses (or blue light blocking glasses) are becoming increasingly popular because they claim to protect the eyes from potential damage - but how effective are they at keeping your eyes healthy? Here, we'll take a closer look at the scientific research behind blue light glasses and whether or not they actually work.

Protect your eyes with blue light filtering glasses

Our over-the-counter and prescription blue light filtering glasses, as well as our prescription computer glasses, are designed to protect your eyes from long-term exposure to harmful blue-violet light. Whether you wear them to play games, work late into the night or binge-watch your favorite shows, blue light filtering glasses and computer glasses are the perfect choice.

How to get them?

-No Prescription: If you don't have a prescription and just need blue light blocking lenses, choose No Prescription.

-For the required prescription lenses, you can choose the prescription type and fill in the information according to the prescription given to you by your doctor.

Anti-glare lenses/ Glare-free lenses

The main function of anti-glare lenses is to reduce the reflection and scattering of bright light when it hits the lens, thus reducing the irritation of light to the eyes and improving visual comfort and clarity. The principle of operation is usually realized by applying a special anti-glare coating to the surface of the lens.

Anti-glare lenses are especially suitable for outdoor activities, driving, facing the computer and other work and life scenes, can effectively reduce the glare and screen reflections on the eyes, to provide a more comfortable and clear visual experience.

FAQ

Will anti-glare lenses darken your vision?

The anti-glare lenses offered by HALOOL are designed to optimize light transmission without significantly affecting the brightness of your field of vision. Instead, they reduce reflected and scattered light, improving visual clarity.

Refractive index of lenses

What do lens lens refractive index and high refractive index stand for?

The thickness of the lens is related to the lens index. We offer lenses with different indices. In general, the higher the index, the thinner and lighter the lens.

The lens index (1.50, 1.57, 1.53, 1.59, 1.61, 1.67 or 1.74) is the degree of refraction provided by the lens. This means how much light entering the lens is refracted (bent) as it passes through the lens. The lens index is also related to the thickness of the lens. The higher the index, the thinner the lens.

When you shop for lenses, HALOOL will provide you with the best refractive index options for your prescription!

Prescription

Prescriptions and PD FAQs

Do I need a prescription to order glasses from HALOOL?

When ordering HALOOL eyeglasses, you will need to provide your prescription and pupil distance (PD) measurements, except when ordering non-prescription eyeglasses or reading glasses.

How do I enter my prescription?

For your convenience, we offer a prescription upload option on our website or you can enter your prescription manually. When uploading or entering your prescription, be sure to check that all values and symbols (+/-) match your doctor's prescription before continuing.

What if I don't have a prescription on hand?

If you do not have a prescription, we recommend that you contact your eye care professional to obtain a copy.

Can I use an expired prescription to order eyeglasses from HALOOL?

We strongly advise against using an expired prescription. An expired prescription may not provide optimal vision. Regular eye exams are vital to maintaining eye health and visual clarity.

Can I order more than one pair of eyeglasses of different prescription in one order?

Absolutely! We make ordering eyeglasses easy for the whole family.

What if I have astigmatism?

Astigmatism is very common. We can make eyeglasses for every prescription, including astigmatism.

What is PD and why is it important?

Pupillary distance (PD) measures the distance between the centers of your pupils. Your PD is used to align the lens prescription with your pupil for optimal visual clarity and comfort when wearing eyeglasses. An incorrect PD can cause a variety of symptoms such as eye strain, blurred vision, nausea, double vision, and headaches.

What if my prescription includes single PD or double PD measurements?

If your prescription includes a single PD, it is a number that represents the combined measurements of both eyes. If you have dual PD, you will see two numbers, where the first number represents the right eye (OD) and the second number represents the left eye (OS). Be sure to enter the correct type of PD measurement when ordering your eyeglasses.

Can I change my prescription or PD after I place my order?

Be sure to double check your information before completing your order. If you need assistance with modifying/canceling your order, please contact our customer support team as soon as possible for assistance.

If you have any other questions about your prescription or PD, please feel free to contact us. We are always here to help.

How To Read and Enter Your Prescription

Have you ever squinted at your eyeglass prescription and been overwhelmed by the numbers and abbreviations? Have no fear! Navigating the world of prescriptions can be confusing, but we're here to help! Let us break down the components of your prescription and walk you through the process of entering your prescription to order the HALOOL eyeglasses that are right for you.

What does my prescription mean?

Your eyeglass prescription (Rx) contains important information to ensure that your eyeglasses meet your unique vision needs. Let's break down the key components:

OD/OS: These abbreviations stand for "Oculus Dexter" (right eye) and "Oculus Sinister" (left eye). They indicate which eye the latter value applies to.

SPH (Spherical): This value specifies the number of lens diopters needed to correct myopia (indicated by a minus sign "-") or hyperopia (indicated by a plus sign "+").

CYL (Columnar) and Axis: If your prescription contains these, you have astigmatism, a condition in which the cornea is irregularly shaped. Together, these values determine the lens correction needed to address this problem.

NV-ADD (Near Vision - Added Value): If this value is present, it indicates the additional magnification needed for near tasks, usually for bifocal or progressive lenses.

PD (Pupillary Distance): This measurement, in millimeters, indicates the distance between the centers of the pupils. This is critical to ensure that glasses are properly centered for optimal vision.

PD can be written as single PD (e.g. 62), double PD (e.g. 33/31) or distance PD/near PD (e.g. 62/60).

Prism: If present, prism correction addresses eye alignment issues and includes both prism and base values. The base value can be BO (base outward), BI (base inward), BU (base up) or BD (base down).

How Do I Enter My Prescription?

To order your prescription glasses, you need both your Rx and Pupillary Distance (PD). Follow these steps after choosing a frame:

Single vision

If your prescription does not have an ADD value (for progressive lenses), you may be able to order single vision glasses:

Select "Prescription" and then "Single Vision".

Select your PD (single or double PD).

Enter the SPH, CYL and AXIS values for OD and OS.

Customize your lenses and proceed to checkout.

Progressive Lenses

If your prescription contains ADD values:

Select "Progressive" under "Select Prescription Type".

Select your PD (Single PD or Double PD).

Transfer the SPH, CYL, Axis and ADD values from your prescription to the order page.

Make sure the correct SPH and CYL symbols (+/-) are entered. ADD is always positive.

Customize your lenses as needed.

and enjoy your new glasses!

By following these steps, you will have the perfect customized eyewear for your vision needs. If you have any questions, please feel free to contact us via chat or phone and our team will be happy to assist you!

Understanding Your Pupillary Distance (PD)

Pupillary Distance (PD) measures the distance between the centers of the pupils. It is used to help accurately center prescription lenses in the frame so you can see clearly.

Why is PD Important for Your Glasses?

Correct alignment of the optical center of the lens with the pupil ensures that you get the best visual clarity and comfort when wearing your glasses. Accurate pupil distance measurement reduces eye strain and allows your eyes to focus more naturally. Incorrect pupil distance may result in distorted vision or discomfort.

What is Single PD or Double PD?

Single PD is the total measurement (in millimeters) from the center of one pupil to the center of the other. The format for single PD is as follows: 62 mm.

Bi-pupillary distance measures the distance from the center of each pupil to the center of the bridge of the nose. The format for double pupillary distance is as follows: 32/30 mm. The first number is always the right eye (OD) measurement and the second number is the left eye (OS) measurement. For progressive or bifocal lenses, the difference between the bi-pupillary distance values must not be greater than 3 mm.

For single vision lenses, the difference between the two PD values must not be greater than 5 mm.

Understanding Your Prescription: A Guide to Optical Abbreviations

Understanding your eyeglass prescription can be a bit like deciphering a secret code. To help you confidently order your glasses from HALOOL, here"s a handy list of optical abbreviations commonly found on prescriptions:

ADD (also NV-ADD): Near Vision Reading Addition, found on multifocal prescriptions. The ADD is the additional magnification used for bifocals or progressive glasses, single vision reading glasses, and computer (intermediate) vision glasses.

AR: Anti-Reflective; a coating that reduces reflection on the lenses.

BAL: The Rx calls for balance lenses, meaning the same Rx for each eye, often used when one eye has no sight.

BD, BI, BO, BU: Prism correction on your Rx; indicated with Δ and one of these four abbreviations. B stands for Base, indicating base down (BD), base in (BI), base out (BO), or base up (BU).

CYL: The Cylinder; in conjunction with AXIS, corrects astigmatism.

DS: Diopter Simplex; may be written in the CYL field if no astigmatism correction is needed.

DV: Distance Vision.

FT: Flat-Top Bifocal.

NV: Near Vision (reading).

OD: Latin for Oculus Dexter, denoting the right eye.

OS: Latin for Oculus Sinister, denoting the left eye.

OU: Latin for Oculus Uterque, denoting each eye.

PAL: Progressive Addition (or Adjustment) Lens; on a Progressive Rx, two different numbers may be written for the NV-ADD to increase reading power.

PD: Pupillary Distance; measures the distance between your pupils, crucial for correctly placing the optical center on each lens.

PL: Plano; Latin for “flat.” In the SPH section, it signifies no correction needed.

Rx: Short for prescription.

SPH: The first section on an Rx; corrects nearsighted or farsighted vision.

UV: Ultraviolet; all HALOOL lenses come with 100% UV protection for free, safeguarding your eyes from potential damage caused by UV light exposure.

VA: Visual Acuity; indicates how well the eye can see. It might be expressed as a fraction (e.g., 20/20), denoting corrected vision with eyeglasses.

PL or Plano is Latin for “flat”. “Plano Lenses” is also another way of saying “non-prescription” lenses. If “PL” is in the SPH section of an Rx, it means no nearsighted or farsighted correction is needed. You can substitute “0” for Plano in a prescription as well.

PL or Plano and How To Order Non-Prescription Lenses(plane surface)

PL or Plano and How To Order Non-Prescription Lenses(plane surface)

Non-prescription eyeglasses do not correct vision. The following eyeglasses can be ordered:

Non-prescription tinted sunglasses that can be worn with prescription contact lenses

Non-prescription clear or fashion tinted glasses that can be worn with contact lenses or as a fashion option.

How do I order non-prescription eyeglasses?

Ordering non-prescription eyeglasses from HALOOL is super easy! Click on the "Select Lenses" button and select "Non-Prescription" under the section titled "Select Lens Type". During the ordering process, options such as anti-blue light, anti-glare, etc. are available. Enjoy your stylish new eyeglasses!

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