5. Corrective power: these are the numbers associated with the actual power needed in your lenses. These numbers often change (or disappear) between your glasses prescription and your contact lens prescription, especially with higher powers.

I have a glass eye on my left side, so I need a prescription on the right and balanced on the left but I can’t find a place to put that information. Also when you are ordering bifocals how do you know where to put the line for the reading part.

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Given the growing demand for prisms for people sitting in front of screens all day long, such as the one I’m staring at now, not having an ETA on when they will be available is a neglectful answer. That literally forces us to take out business elsewhere.

3. Brand: your eye doctor will determine the appropriate brand and type of contact lenses for you, according to your preferences and specific requirements.

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I was hoping for some help interpreting my Rx. The OD sphere is +2.25, cylinder -0.5 and axis is 110 The OS sphere is +1.25 cylinder is D.S and no axis is not listed. when I try to order online, there’s only options for – not + Thanks!

You should be able to enter all of those values into our prescription page, but if you’re having trouble then please do give us a call.

1. Single vision lenses: a large majority of glasses come with single vision correction. This common type of lens is generally used to correct nearsightedness, farsightedness or used as reading glasses.

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If you want to purchase contact lenses, you’ll need a specific prescription from your eye care professional. In addition to the general parameters that we’ve mentioned, a contact lens prescription will include a Base Curve and a Diameter.

You may also find additional information on your glasses prescription such as the suggestion of certain types of lens coating and special comments from your optometrist.

For more one-on-one assistance, we always recommend calling us directly so we can assist you in real time. You can contact us at 1-866-414-2326.

b. UV protection: to prevent your eyes from being damaged by the sun’s UVs, your lenses can come with special anti-UV treatment.

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If you’ve been instructed by your eye doctor to “balance” one eye, then that means you should enter the same information for your left (OS) eye as your right (OD) eye.

The following tips will help you decipher and understand your eyewear prescriptions. If you get stuck, get in touch with our Customer Service team. We’ll be happy to contact your Eye Care Provider to verify your prescription for you.

Typically this means to leave the fields for CYL and Axis empty (or at 0), but we alway recommend clarifying with your eye care practitioner if you’re unsure.

Is this a prescription you also use for glasses? If there’s no brand, Diameter (Dia), and/or Base Curve (BC) listed on your prescription, it’s likely for glasses rather than contacts.

The quick answer is: sometimes your PD is not included. We first recommend calling your eye care practitioner’s office directly to ask if that’s something they can provide for you. If they cannot, you can then try to measure yourself and the blog linked will give you tips on how to do so.

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Our profiles are designed on CAD (computer-aided design) by a former Weinig service technician with over thirty-five years of experience in profile knife grinding, moulder operations, cabinet making, architectural woodworking, and home construction.

In addition to the general parameters, eyeglass prescriptions can require a Pupillary Distance (PD). Your PD is the distance between the centre of one pupil (the central black dot of your eye) to the centre of the other pupil. It is measured in millimetres and is an important part of your prescription.

c. Transitions: these lenses are equipped with a technology that adjusts your glasses’ tint according to the light. When the sun comes up, your glasses turn into sunglasses!

What is normal eye axis

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5. ADD: provides magnifying power for reading, bifocal, multifocal and progressive lenses. You will most likely have the same number for both eyes that usually ranges between +0.75 and +3.00. Occasionally, lower add powers than +0.75 can be found on a prescription. These are for Anti-Fatigue lenses such as our SightRelax lenses.

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A full contact lens prescription always includes the specific brand that your eye care practitioner recommends for fit and comfort compatibility. If you are wanting to change product, we always suggest going to see your doctor for a refreshed script first.

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1. Lens designs on a prescription indicate your eyesight requirement, detailing the lens’ design and function (single, progressive, bifocals…). Occasionally, you’ll see a specific brand of progressive or single vision lens written on the prescription itself. This is most often a recommendation based on a brand the doctor’s office carries. If you have questions about anything on your prescription, feel free to give a call to our customer service team.

My apologies for any lack of clarity. We take our lens quality and technology very seriously as we want to make sure that everyone has the best possible vision from our eyewear. Certain lenses, like prism lenses, do require highly specialized and individual calculations and measurements which are more challenging through an online retail medium. That said, we are always striving to close the gap between physical and digital shopping, which is why we would not be willing to say that we will never carry this lens.

1. Base Curve (BC): the number that indicates your contact lens’ shape. According to the steepness or flatness of your cornea, your prescription indicates how large your contact lens should be.

I am wanting to order a multi focal lens that has correction for nearsightedness AND farsightedness. But your website does not offer the option to enter those values. How do I order?

That said, we recommend reaching out directly to our dedicated Customer Service Team for assistance with your prescription.

my PD is a smaller number than your options list. What does this mean for me? My prescription also reads to separate PD’s, 32.5 for my right and 31.5 for my left under the PD column. Help! Thanks!

- 0.50 eye prescription how bad is that

Are you ordering the specific brand recommended by your eye care professional? If you are, and you’re not seeing your specific values listed, please give us a call at 1-866-414-2326.

After you click “Add lenses” on the page for the frame you’re wanting to buy, you should immediately get the prescription (Rx) page.

d. Polarized: improved glass technology designed to filter and reduce glare. Polarized lenses offer more clarity and a sharper vision to their wearers.

Your “total” PD is a 64, according to the numbers you’ve provided above, with 32.5 for your OD (or right eye) and 31.5 for your OS (or left eye).

what is sph, cyl and axis in eye prescription

I see that you indicate that under AXIS on your website it allows you to enter the 0s prior to the number, however when I try to enter mine (025) the only option is 25, is this correct? Or am I doing something wrong?

It was the same for my left eye OS, which is OS: X085. The only options I have are 80 and 90. Again, I’m not sure which one to choose.

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Are you trying to order contact lenses or glasses? If contacts, you should be prescribed for two different brands — one toric, one non-toric.

I hope that helps. If you have any additional questions or concerns, please contact us at 1-866-414-2326 or via e-mail at customerservice@clearly.ca.

PD indicates where the optical centre of your lenses should be placed, so you can have the best, most comfortable vision. It is generally mentioned in your eyeglasses’ prescription with the letters ‘PD’. If you can’t see it, you can learn how to measure your pupillary distance.

A glasses prescription is intended for the purchase of glasses only – it does not include information that is required in a contact lens prescription. If you wear contacts, you’ll need a prescription specifically for contacts. (More on that later)

f. Blue light filtering glasses: a special coating that filters out UV and blue-violet light emitted from the sunlight and artificial light sources, which can be worn as your regular glasses for all your routine activities, indoors and outdoors. Clearly’s blue light glasses are also scratch-resistant and anti-glare to offer you clear and sharp vision.

Our multifocal lenses do have both distance and reading correction included. We carry both a bifocal lens (with the visible line), as well as progressive (without the line). When you select your frame, you are taken to a prescription page that asks you to enter all values from your prescription, including your ADD power (which corrects your reading/near vision). Once you’ve filled out your prescription, you’re taken to another page that asks you to choose whether you want Reading, Distance, or Reading & Distance. If you select Reading & Distance, you’re taken to see our selection of multifocal lenses.

3. Progressive lenses: multifocal lenses offer multiple corrections in one pair. These prescriptions have a no-line lens and offer intermediate distance vision, which can be adapted for certain specific uses, such as computer work.

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I do not require a prescription but would like to order colour contacts. What information would I input in the OD and OS fields so there isn’t any corrective power?

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how can I get Clearly Contacts to add or stretch out the nose padding part so it sits a little higher on my nose bridge? Do I need to leave it with them so they can fix it? or can I wait for them to do it in person?

Our complete glasses packages start at $50 for a pair of frames and our always-free Standard Air Lenses, which accommodate single vision prescriptions from -3 to +3. That said, there are a lot of variables when it comes to finding your perfect pair of glasses — from the frame you like to the lenses you need. We recommend speaking with an eyewear representative if you’d like a price breakdown based on your own set of requirements.

We always recommend speaking with your eye doctor first to see if that is something they have on file, or if they’re able to measure it for you. Otherwise, we do have a full guide to the PD here on the blog:

I am trying to order coloured contact lenses, which only allows me to edit the ‘power’ field. There is nowhere for me to specify the rest of my information. My prescription for one eye is: -4.00-1.25×170. What should I put as my ‘power’? Thanks!

I’m trying to order toric contacts for my right eye and my prescription is -0.75-1.50×145. I can’t seem to find a brand that can match this, only inbetween sizes. I’ve tried -0.75-1.25×140 with biofinity, but it didn’t fit right. Do you have any tips on how to tweak the numbers to line up better?

When you’re buying glasses online, all you need to do is make sure the numbers on your prescription match the numbers in the prescription field on your screen.

Hi, in my prescription, the AX are : 6 and 1, but for the Acuvue Oasys for Astigmatism, I had only minimum 10 could choose, should I choose 10? or is there any other option you recommend me?

Are there any issues with rounding up to the 0.80 instead of 0.75, and 100 instead of 098? I’m assuming this is a common occurance for ordering contacts.

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The left eye is prescribed with a sphere of -3.00 to correct nearsighted. This eye needs a cylinder of -1.00 and 004 to correct astigmatism, and an ADD power of +2.25 to correct near vision. Without the ADD value, it is a single vision prescription.

I can measure her PD with a caliper as I did for myself but not sure how the “Additional Requirements” affect what I should enter? Is this redundant to the ADD parameter or does it need to be taken into account elsewhere?

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What brand of contact lenses did your eye care professional prescribe you for? If there’s no contact lens brand listed on your prescription, you may instead have a script for glasses.

6. Prism: measured in prismatic diopter (p.d.). It is required when eye alignment needs assistance. It is indicated as follows:

My prescription from my ophthalmologist doesn’t include a PD. Can I just measure this distance myself or do I need to make another appointment to get this measured?

I have enjoyed your service and am looking into it for my girlfriend. Unlike my simple Rx, hers is for progressives and has more numbers than I’m used to, even more than an ADD number. It’s recorded as:

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For entering your reading information, “ADD” — which comes just after the AXIS section — is the same as “Reading” power. Unless you’ve been otherwise instructed by your eye doctor, your ADD power/Reading power should be the same in both eyes.

I would recommend contacting your eye care professional for a copy of your contact lens prescription. Otherwise, please feel free to give us a call at 1-866-414-2326 with any additional questions.

Axis eye meaning

If you instead see a different brand listed, then we always recommend sticking with the product prescribed by your doctor. If you’re looking to try something new, you can always visit them for an updated script.

Is the prescription that you’re using the same one that you used for your eyeglasses? If so, you’d need to visit your eye doctor for a separate contact lens prescription which would include a brand recommendation and trial lenses.

If you see a – , it indicates nearsightedness. If you see a +, it indicated farsightedness. If you notice an ‘Add’ power, it means you require magnifying lenses, such as progressives.

There is a separate prescription for your right eye and your left eye. Most of the time, OD and OS are indicated on the left of your prescription and the following numbers show each eye’s specific needs. Some glasses prescriptions also include additional numbers such as:

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My contact lense prescription numbers don’t match the available list of values on your website. How do I pick the best match?

Okay I had a feeling that those numbers corresponded to the different shapes but I just wanted to confirm. I don’t have the PD measurement written on my prescription but I’m just going to have my family member measure it out for me.

The process of transforming unpolarized light into polarized light is known as polarization. There are a variety of methods of polarizing light. The four ...

When ordering multifocals, in my particular case near is +0 (needs no correction) while far is around (OD -2.00 / OS -1.75). Would I enter the add values as (+2.00 and +1.75) respectively?

It often depends on a number on factors, including CYL and Axis measurements, as well as your PD, your frame choice, lens choice, and ADD power.

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OD – SPH=pl CYL=sphere AXIS=blank PRISM=blank BASE=blank ADD=+1.25 OS – SPH=pl CYL=-0.50 AXIS=150 PRISM=blank BASE=blank ADD=+1.25 Additional Requirements: “progressives or SV NEAR OD: +1.00 sphere OS:+1.00 -0.50 x150”

This means that you have a mono PD. You can enter in two separate PD measurements into our current prescription reader, but if you need some assistance you can always give us a call and we’ll be happy to walk you through it.

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The first four parameters have to do with your visual correction. PD is a crucial measurement we need to make your glasses.

Hi i just wanna ask regarding my PD when i check my Glasses prescription it didn’t have the PD. I’m curious how will i know my PD

The term "CCD" means "charge-couple device" and is an electronic module which is capable to transport electronic charges. This technology was invented in 1969 ...

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Both the Base Curve (BC) and Diameter (DIA) of a contact lens ensures a proper fit on your cornea and total eye surface. Those features ensure comfort and encourage eye health, including allowing proper oxygen to the eye. You’ll also need this information if you want to order contact lenses online.

My prescription has an ADD value of +0.75, but this is not one of the options on the menu. I need progressive lenses. What do I do?

It looks like that might be your glasses prescription. Glasses and contact lens prescriptions are often slightly different — a contact lens prescription would include the brand name and the Diameter measurement.

Each one of these indicators provide information about the base direction or the thickest edge of the prism. Clearly does not offer prism prescription glasses.

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We recommend contacting our dedicated Customer Service Team directly so they can talk you through the prescription in greater detail and answer any questions you might have. You can reach them at customerservice@clearly.ca or at 1-866-414-2326.

I read through the comments above about the 2 PD numbers, and how to enter them. But when I go to do it it just shows on place to enter the PD number and nothing else to click on. Any help would be greatly appreciated. Thanks Jonathan

The quick answer is: sometimes your PD is not included but it is definitely needed to complete any order for prescription eyewear. We first recommend calling your eye care practitioner’s office directly to ask if that’s something they can provide for you. If they cannot, you can then try to measure yourself and the blog linked will give you tips on how to do so.

For axis measurements, the 0 can often be a placeholder by your eye doctor, so 25 should be correct. That said, if you are concerned that you might be misreading your script, we always recommend clarifying it with your eye care professional before ordering.

Also, the “boxes” box. What does that mean? How many boxes do I need? 2 boxes was already preselected, but I just want to make sure I have all of the proper information before I purchase my contact lenses.

The differences between each type of glasses are not always clear. To understand how to correctly read a prescriptions for glasses, here is an overview of the main categories of lenses that can be written on your prescription.

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I was trying to add my right eye axis which is OD: X095, but the only option is 90 or 100. I’m not sure which one to choose

Hi Im trying to order Toric contacts but some of the drop down menus dont have the numbers I need. this is what my doctor gave me. OD: +0.50 Cyl: -1.50 Axis: 005 OS: +0.50 Cyl: -1.50 Axis: 172

All Transitions lenses will still carry UV protection, but not specifically the full blue light filtration offered by the BlueReflect lenses.

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Just a slight error in spelling of section [ buying glaases on line] X Correction ( buying glasses on line) ✔ in your ” How to read your Prescription for buying eyewear or contact lenses” page. Small detail I know, but correction is so important in detail…Eye hope you see its importance 😉 pun intended. I luv the website!

I was wondering why the prescription my progressive glasses I ordered in July is different from the prescription glasses I just ordered tonight? The progressives have an ADD value but the sunglasses do not but the Rx I used for the sunglasses is the same one as the progressives. Is it because the sunglasses really aren’t used for reading? Or was there a data entry error when submitting the order for the sunglasses. Noticed the difference when I got my emailed order receipt.

If you go to the link below, it will show you all the frames currently available on our site that will accommodate this lens type.

There is no mention of Notes on prescriptions. My prescription has a note that says, ” pals +2.25 add ou”. The add on the actual prescription is 2.00. Why the difference?

2. Bifocal lenses: these glasses come with two vision corrections. One is on the lower part of the lens to help you read or see from near, and the other on the upper part includes a distance prescription.

Hello, I want ordering Biofinity toric by coopervision . But I have put my old boxes in trash and now I dont understand my prescription.

Hi, I have a prescription of +6.50 and I do not see an option for this, is this because you do not offer such a high prescription?

We’d love to help you resolve this. Please contact us at 1-866-414-2326 so our customer care department can review your full order history and prescription information to get you the full information and answer.

Hi. I am wanting to order a new brand of contacts. My perscription says BC 8.3 but on the new brand I am wanting to buy it says BC 8.6. Am I still able to order these contacts or will they not fit properly.

I tried to enter my prescription since my camera on my phone isn’t working but this site won’t allow me to enter my “add” but will for “pd” even though I have a blank for that latter part on my prescription. Any help would be great.

a. Anti-reflective coating: enhances clarity and concentration by allowing more light to come in and reduces reflection.

I was going to order contact for the first time. I’m sure my optometrist can give me an answer when I go see them next week, but was looking for a sooner answer.

Underneath the section to enter your PD, there is a link titled “I have two PD numbers” — just click this to enter your separate figures.

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I am trying to get a toric lens for my left eye only (right is regular lens) and I can’t put in the CYL or AXE values. The parameters on the site are already set and do not match my prescription. My prescription has different values.

Apologies for any confusion. Our site does help to filter the glasses that are suitable for multifocal (bifocal and progressive) lenses.

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Have more questions? We have various other ways to help you read your eye prescription. Contact us by email, live chat or phone.

3. SPH “sphere” indicates the amount of lens power prescribed for nearsighted or farsighted vision. It is measured in diopter and uses (+) for farsightedness (hyperopia) and (-) for nearsightedness (myopia).

This means that 61 is the PD you enter for distance prescriptions and multifocals. You’d use 58 for reading-only glasses.

I am interested in purchasing the “1 Day Acuvue Moist for Astigmatism 90 pack” contact lenses, but I am having trouble figuring out what information to put into the “Axis” and “boxes” info boxes.

- 1.50 eye prescription how bad is that

Hello, I tried to order glasses from you today but I cannot input my ” axis ” because the number that my eye doctor prescribed is a negative number. I called the eye doctor and they confirmed that my axis is a negative number in both eyes how would I go about ordering glasses if the only prescription option for acid is a positive number ?

If you give us a call at 1-866-414-2326 or email us at customerservice@clearly.ca, a dedicated Customer Service Representative can walk you through the order process and help you find the lens you need.

e. Clip-on glasses: additional lenses that can be adjusted on top of your prescription glasses. They can be polarized and come in various formats..

We always recommend clarifying your prescription with your eye doctor, just in case, but DS often stands for “dioptic sphere,” and typically indicates that you don’t need to enter any values (or 0.00) for CYl and Axis.

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Unfortunately contact lenses do require their own separate prescription. Often the parameters are slightly different, but also the doctor should have recommended and fitted you for a particular contact lens brand.

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1. Find a pair of frames you love, then click the “Add lenses” button right underneath the price on the product’s page. 2. Select “Add Prescription” from the dropdown. This will take you to a new screen. 3. Select “Add New Prescription” on the lefthand side of the new screen. 4. Enter your prescription information. Then, where it says “PD,” you should see text that reads “I have two PD numbers.” Select this. 5. You should now see two fields for your PD — the top is for your right eye (OD), the bottom is for your left eye (OS). You can enter your two separate numbers here.

If you’re not seeing these separate parameters, we recommend speaking with your eye care professional for a more detailed prescription.

I have a prism in my glasses, is this the 1.5BO on my chart? If so? How do I enter this when doing my prescription on the website?

Eyecylinder

If you were prescribed for the 1 Day Acuvue Moist for Astigmatism 90 Pack and you’re not seeing your parameters, then give us a call at 1-866-414-2326 and we’d be happy to help one-on-one.

Even coloured contacts with no vision correction still require a prescription. The reason is because a contact lens prescription includes a base curve and diameter measurement, which determine how the contact lens will fit onto your eye. If you get the wrong parameters, you can wind up damaging your eye or — at the very least — being extremely uncomfortable.

Read on to learn everything you need to know about how to read glasses and contact lens prescriptions before shopping for eyewear.

We’ll help you understand what your eye care professional means by all those numbers and letters on your prescription, so you can enter these details with confidence when you shop for eyewear online.

Hi, There are a couple of numbers missing on my prescription, Is it something you can help or do I need to contact my doctor? Under CYL for my right eye it says “sph” and under AXIS for the same eye is left empty.

Let’s start with some of our most frequently asked questions about glasses and contact lens prescriptions. Follow our guide to find the answers on how to read glasses prescriptions:

4. CYL & AXIS: a Cylinder (CYL) and Axis number (between 0 and 180 degrees) are required to correct Astigmatism. Both parameters will be required together.

Cylindereyesight

Unfortunately right now, Transitions and Digital Protection do have to be separate, however that’s also because we usually recommend Digital Protection as an office/indoors-only lens, whereas Transitions are great for going inside & outside throughout the day.

4. Expiration date: your eye care professional will determine an expiry date for your prescription. Past that date, you’ll require a new prescription for contact lenses. These are generally set annually.

my OS is -1.50 sphere, -1.50 cyclinder and 072 axis, I don’t see an option for a -1.50 cyclinder would it be typical to go to -1.75 in this case, I’m not sure what to do any help would be appreciated thanks

We receive our lenses directly from the manufacturer (Acuvue), and we’re only a refill company, not the manufacturers ourselves.

Film Reticles: Standard reticles, stage micrometers, calibration scales, apertures, resolution charts and TEM grids from Graticules standard product range.

We recommend speaking with your eye care professional for a brand recommendation and fitting, just to ensure that your eyes are healthy and well adapted to that particular lens.

5 days ago — The meaning of MICROSCOPE is an optical instrument consisting of a lens or combination of lenses for making enlarged images of minute ...

If you give us a call at 1-866-414-2326, an agent will be able to help you decipher your prescription. Is this for glasses or contact lenses?

No mention on how to deal with bifocal lens. Your frames need to specify which are suitable for bifocal and which are not.

Pick a pair of frames online and enter your prescription details. You’ll soon be rocking a pair of glasses that look great and make everything around you look great as well. Click to browse our collection of stylish and affordable glasses.

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Is there a contact lens brand listed on your prescription? If not, it sounds like you may have a glasses prescription, rather than one for contacts. Unfortunately the parameters do differ between the two, and typically your eye care professional will recommend a specific product and give you a sample before completing your script.

2. Vision enhancement: a special treatment for one or both lenses used to improve vision and clarity through your glasses. You could find different options such as:

The SPH, CYL and Axis (Sphere, Cylinder, Axis) measurements are for your distance correction, while your ADD power is for your near prescription. The PD is often separated for progressive prescriptions, and can be entered separately or combined into one number, typically between about 55-70 for adults.

normal eye sph, cyl axis

Is this the brand that your eye doctor prescribed? If you don’t see a brand listed, you may instead be working from a glasses prescription, rather than a contact lens prescription.

Hi, I have #’s for both OD and OS but doctor wrote nothing in my prescription for a PD #. Is that necessary for filling out my online order? Or can I just measure distance myself with a ruler or I have to go back to optometrist to measure that?

In the sample below, the right eye is prescribed -2.50 sphere to correct nearsighted vision. This eye needs a cylinder of -0.75 and an axis of 173 to correct astigmatism, and an ADD power of +2.25 to correct near vision. The ADD value is usually present in a multifocal prescription.

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