How To Read Your Eye Prescription For Glasses
How to Read Your Eyeglass Prescription When you look at your prescription for eyeglasses you will see numbers listed under the headings of OS and OD. The higher the number the stronger the prescription lenses required.
However if the letters PAL are next to one of the ADD numbers or elsewhere on your prescription this means your doctor indicated that you will need a different ADD correction for progressive lenses versus lined bifocals.
How to read your eye prescription for glasses. A shows that you find it hard to see things that are far away without glasses. You do this by holding your glasses midway between your phone and computer. On your eyeglasses prescription the information for your right eye OD comes before the information for your left eye OS.
The unit of measurement for lenses is dioptres. You will sometimes see the Latin terms used for your eyes which are. This is a measure in dioptres of how powerful the lens needs to be to correct either nearsightedness noted with a - or farsightedness noted with a.
This number always has a sign. The number might be very small like 025 or a large number like 600. OS - Oculus Sinister for the left eye.
For multi-focal glasses as well as reading and computer glasses your Rx will include an ADD or NV value. 31122019 The first step to understanding your spectacle prescription is knowing what OD. The numbers on the frame represent lens width bridge width and temple lengths.
Your glasses prescription includes a number for every aspect of your vision that needs correction. Decoding your eye prescription After an eye exam your optometrist or ophthalmologist may write you a prescription for eyeglasses or contact lenses. This is short for oculus dexter and is your right eye.
A in the box indicates that you are long-sighted which means you find it difficult to see things close to you. Eye doctors write prescriptions this way because when they face you they see your right eye on their left first and your left eye on their right second. If you see a it indicated farsightedness.
Select the frames according to one of the following widths. All numbers will be written in 025 increments. Your spectacle prescription also may have a column labeled OU.
Next up the numbers. The basics of an eye prescription are a series of numbers for your right eye R and your left eye L. If you see a it indicates nearsightedness.
Other parts of your eyeglasses prescription. If you notice an Add power it means you require magnifying lenses such as progressives. How do I read my glasses prescription.
The second number is the cylindrical correction. The first number in a prescription is the spherical correction often abbreviated as SPH. Youll be prompted to tilt your glasses.
Once you understand the sections of your glasses prescription youll be able to figure out what all those numbers mean. They are Latin abbreviations. OD - Oculus Dextrus for the right eye.
Sphere SPH The sphere column is often abbreviated as SPH. When learning how to interpret your prescription keep in mind that usually the further from zero the numbers are the more correction you need. If you dont have any glasses just try any frame to evaluate your size.
The prescription will include several numbers. Check in the width of the lens and the bridge length as printed on your frame. Once things are calibrated the app is ready to scan your glasses.
In a typical prescription like the one above youll find these abbreviations on the left side. Right and Left Eye. The type of Rx glasses may be noted on a prescription such as DV Distance Visionnearsightedness and NV Near Visionreading.
This is short for oculus sinister and is your left eye. They are abbreviations for oculus dexter and oculus sinister which are Latin terms for right eye and left eye. A plus or minus sign in front of your glasses prescription number is shorthand for.
This is the lens power needed to fix your vision.
