How To Read Glasses Prescription On Frames

For example lets say you see these three numbers on the inside of your frames.

How to read glasses prescription on frames. They are latin abbreviations. Use your phone to check your vision best places to buy prescription glasses online in 2019. Additionally read the cyl column to find the strength of lens you need to correct astigmatism. Look for a series of numbers on the inside of your glasses.

In this case the openings in the frame for the lenses are 48 mm wide. This number always has a sign. Os oculus sinister means the left eye and od oculus. This shows if you have a muscle imbalance in your eye.

You may also have an inter add for computers or other tasks like reading music on a stand. Generally the eye size of most eyeglass frames ranges from 40 mm to 62 mm. Different manufacturers write out measurements slightly differently which can make reading the measurements seem daunting but just remember. An eyeglass prescription cannot be used to buy contact lenses.

I took it for a spin with my sons glasses and the results matched his current prescription. Eyeglass and contact lens prescriptions arent the same. Your eyeglass prescription is typically written in a grid like the one below using a combination of terms abbreviations and numbers. The type of rx glasses may be noted on a prescription such as dv distance visionnearsightedness and nv near visionreading.

In the left eye its base up bu. Usually youll see these abbreviations along the left side. This eyeglass prescription also includes prismatic correction of 05 prism diopter in each eye. How to read eyeglasses prescriptions when you look at a standard prescription the first word youll see is distance this term refers to what power of lens you will need to see distant objects clearly.

Its less common to see this box filled in as its fairly rare. For multi focal glasses as well as reading and computer glasses your rx will include an add or nv value. The first number the eye size represents the horizontal width of the lenses. If youre near sighted or far sighted check the sph column to find out how strong your lenses need to be.

This will indicate if you need a prescription for reading and is applied to bifocal and varifocal lenses to correct presbyopia. In the right eye the prism is base down bd. Stands for oculus dexter meaning right eye. The measurements should be printed in a small font on the inside of the temple the.

Your ophthalmologist or optometrist determines this power by trying different lenses while you read an eye chart in the exam.