If I Need +1.25 Reading Glasses, Are There Contacts That Work
Updated on February 11, 2021. Reviewed by Chris 24-hour interval (Optician) andDr. Justin Asgarpour (Optometrist).
Looking for an easy explanation on how to read your glasses or contact lens prescription? You're in the right place.
We'll help yous understand what your eye care professional means by all those numbers and messages on your prescription, so you tin enter these details with confidence when you shop for eyewear online.
There's ane key thing to recall about glasses and contact lens prescriptions: the measurements are different.
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 y'all wear contacts, you'll need a prescription specifically for contacts. (More on that afterward)
Read on to acquire everything you need to know almost how to read spectacles and contact lens prescriptions earlier shopping for eyewear.
Prescription eyeglasses and contact lens prescriptions: FAQ
Permit'due south commencement 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:
- What do the numbers on my prescription mean?
- How do I read my glasses prescription?
- What is the departure between progressive, bifocal and single vision glasses?
- How practice I read contact lens prescription?
- What are the key differences betwixt a glasses and contact lens prescription?
The post-obit tips will help yous decipher and understand your eyewear prescriptions. If you go stuck, become in affect with our Client Service team. We'll be happy to contact your Eye Intendance Provider to verify your prescription for yous.
What do the numbers on my prescription mean?
Your prescription may include the following: SPH, CYL, Axis, Add and Pupillary Altitude (PD). 
The first iv parameters have to do with your visual correction. PD is a crucial measurement we need to make your glasses.
Here'south the meaning backside each of these letters and numbers on your glasses prescription:
1. OD "oculus dexter" indicates your right eye's parameters.
2. Os "oculus sinister" shows your left middle'south parameters.
3. SPH "sphere" indicates the corporeality of lens power prescribed for nearsighted or farsighted vision. It is measured in diopter and uses (+) for farsightedness (hyperopia) and (-) for nearsightedness (myopia).
four. CYL & AXIS: a Cylinder (CYL) and Axis number (betwixt 0 and 180 degrees) are required to right Astigmatism. Both parameters will be required together.
5. ADD: provides magnifying power for reading, bifocal, multifocal and progressive lenses. Y'all will most likely accept 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 equally our SightRelax lenses.
In that location is a split up 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 center'south specific needs. Some glasses prescriptions also include boosted numbers such equally:
6. Prism: measured in prismatic diopter (p.d.). It is required when centre alignment needs assistance. It is indicated as follows:
-
- BO (base out)
- BU (base of operations up)
- BI (base in)
- BD (Base of operations-downwards)
Each one of these indicators provide data about the base direction or the thickest edge of the prism. Clearly does not offer prism prescription glasses.
In addition to the general parameters, eyeglass prescriptions can require a Pupillary Distance (PD). Your PD is the distance between the centre of ane educatee (the cardinal black dot of your eye) to the middle of the other student. It is measured in millimetres and is an important part of your prescription.
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 tin can learn how to measure your pupillary distance.
How do I read my glasses prescription?
Once you lot understand the sections of your spectacles prescription, you'll be able to figure out what all those numbers mean.
If y'all see a – , it indicates nearsightedness. If you see a +, information technology indicated farsightedness. If you notice an 'Add' ability, it ways you crave magnifying lenses, such as progressives.
When you're buying glasses online, all you need to do is make certain the numbers on your prescription friction match the numbers in the prescription field on your screen.
In the sample below, the right heart is prescribed -two.fifty sphere to right nearsighted vision. This eye needs a cylinder of -0.75 and an centrality of 173 to correct astigmatism, and an Add together power of +2.25 to right near vision. The ADD value is unremarkably present in a multifocal prescription.
The left eye is prescribed with a sphere of -three.00 to correct nearsighted. This eye needs a cylinder of -1.00 and 004 to right astigmatism, and an Add power of +2.25 to correct near vision. Without the ADD value, it is a unmarried vision prescription.
This is the correct mode to include the numbers on our website for glasses:
What is the difference betwixt progressive, bifocal and single vision glasses?
The differences between each type of glasses are not e'er articulate. To understand how to correctly read a prescriptions for glasses, here is an overview of the main categories of lenses that can exist written on your prescription.
i. Single vision lenses: a large bulk of glasses come with single vision correction. This mutual type of lens is generally used to right nearsightedness, farsightedness or used as reading spectacles.
2. Bifocal lenses: these glasses come with ii vision corrections. One is on the lower office of the lens to help you read or meet from well-nigh, and the other on the upper part includes a altitude prescription.
3. Progressive lenses: multifocal lenses offering multiple corrections in one pair. These prescriptions have a no-line lens and offering intermediate altitude vision, which tin be adjusted for certain specific uses, such as computer piece of work.
Special features on my prescription
You may also find additional information on your glasses prescription such equally the suggestion of certain types of lens blanket and special comments from your optometrist.
one. 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'southward part carries. If you have questions about anything on your prescription, experience free to requite a call to our client service squad.
two. Vision enhancement: a special treatment for one or both lenses used to ameliorate vision and clarity through your glasses. You could find dissimilar options such equally:
a. Anti-reflective blanket: enhances clarity and concentration by allowing more light to come in and reduces reflection.
b. UV protection: to forbid your eyes from being damaged past the sun'south UVs, your lenses can come with special anti-UV treatment.
c. Transitions: these lenses are equipped with a technology that adjusts your glasses' tint co-ordinate to the light. When the lord's day comes upwards, your glasses turn into sunglasses!
d. Polarized: improved glass technology designed to filter and reduce glare. Polarized lenses offer more clarity and a sharper vision to their wearers.
e. Clip-on spectacles: boosted lenses that can exist adapted on top of your prescription glasses. They can be polarized and come in various formats..
f. Blue light blocking glasses: a special blanket that protects your eyes from artificial light by reflecting blueish lights that come from digital devices. Conspicuously's blue low-cal spectacles are also scratch-resistant and anti-glare to offer you clear and sharp vision.
Remember: glasses and contact lens prescriptions are dissimilar.
If you want to purchase contact lenses, you'll need a specific prescription from your centre care professional person. In addition to the full general parameters that we've mentioned, a contact lens prescription will include a Base Curve and a Diameter.
The differences: Base curve (BC) and diameter (DIA)
If you're not sure whether you lot have an eyeglass or contact lens prescription, verify whether your prescription includes:
1. Base Curve (BC): the number that indicates your contact lens' shape. Co-ordinate to the steepness or flatness of your cornea, your prescription indicates how large your contact lens should exist.
two. Diameter (DIA): a number indicating your contacts' length to make sure they'll embrace your cornea properly.
iii. Brand: your eye dr. will determine the appropriate brand and blazon of contact lenses for you, according to your preferences and specific requirements.
four. Expiration date: your eye care professional person will determine an expiry date for your prescription. Past that engagement, y'all'll require a new prescription for contact lenses. These are generally prepare annually.
v. Corrective power: these are the numbers associated with the bodily power needed in your lenses. These numbers oft change (or disappear) between your glasses prescription and your contact lens prescription, especially with higher powers.
If you find the information displayed higher up on your prescription, you have a contact lens prescription.
Both the Base of operations Bend (BC) and Bore (DIA) of a contact lens ensures a proper fit on your cornea and full centre surface. Those features ensure condolement and encourage eye health, including allowing proper oxygen to the eye. You'll as well need this information if you want to order contact lenses online.
Do you lot have a valid centre prescription and are ready to shop?
At present that y'all understand how your middle prescription works, you lot can learn how to purchase glasses online at Clearly.
Pick a pair of frames online and enter your prescription details. You'll soon be rocking a pair of spectacles that await neat and make everything effectually you look great besides. Click to browse our collection of stylish and affordable spectacles.
Fancy getting contact lens delivered straight to your door? Click to check out our wide selection of contact lenses.
Accept more than questions? We take diverse other ways to help you read your eye prescription. Contact us past e-mail, alive chat or phone.
Source: https://www.clearly.ca/thelook/how-to-read-glasses-contact-lens-prescriptions/
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