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#One eye spectacle plus

O.S.- This is oculus sinister, meaning left eye. O.D.- This is oculus dexter, meaning right eye. It will contain terms, abbreviations, and numbers.Īlong the left-hand side, you might see these abbreviations. Most of the time you will find that your eyeglass prescription is written in a grid-like format. Whether you’ve worn glasses for years, or this is your first time, understanding your prescription will give you an insight into the health of your eyes as well as your overall health. You also happen to look at your prescription and start to wonder what all those letters and numbers exactly mean. Contact us if you’re ready to schedule your checkup.Now that you just finished having your eye exam, you have your prescription in your hand and you’re wondering what style eyeglass frames will look best on you. Has it been a while since you’ve seen the optometrist? Yearly visits are essential for clear vision and good visual health. It’s used to ensure that your prescription is correctly centered in your eyeglass lenses.

PD is the distance between the centers of your pupils in both eyes.

Pupillary Distance. You may also see pupillary distance (PD) included somewhere on your eyeglass prescription.

If you need this type of lens, the prescription will note the amount of prismatic power needed in diopters. The lenses bend the light that enters the eye, ensuring that it’s focused on your retinas correctly. Prism lenses may be prescribed if you have double vision caused by conditions that affect the eye muscles, nerves or brain.

Prism. The prism column will be blank for many people.

Bifocals, trifocals, and progressive lenses are separated into zones that contain separate lens powers, which make it easy to view both far and near objects. The lenses are often used to improve vision in people who have presbyopia, an age-related vision change that affects the ability to see near objects clearly. Your eye doctor will use this category to note the additional lens power needed if you wear bifocal, trifocal or progressive lenses. Axis numbers range from 0 to 180 degrees.

Axis. The axis measurement gives information on where to alter the power in the lens to correct astigmatism.

Your eye doctor will note a measurement in diopters in this column. Changing the power in one part of your eyeglass lens will help you see clearly if you have astigmatism. An irregularly shaped cornea affects the way light rays reach your retina, distorting your vision. The cornea is the clear tissue covering your iris and pupil. The condition occurs if your cornea isn’t perfectly round and is shaped like a football instead.

Cylinder. The cylinder column is only used if you have a common eye condition called astigmatism.

You may also see diopters expressed in decimals, such as 1.25 or 4.75. For example, “-5.00” written under sphere means that you are very nearsighted and need a five diopter correction. The higher the number, the stronger the prescription.

#One eye spectacle plus

A minus sign before the number indicates that you are nearsighted, while a plus sign means that you’re farsighted.

Sphere. This number determines the lens power needed to provide clear vision for each eye.It’s not unusual to have a slightly different prescription in each eye.Įyeglass prescriptions also contain these measurements and abbreviations: In fact, the first things you’ll notice on your prescription are abbreviations for two Latin terms in the column labeled “Rx.” Oculus dexter (O.D.) translates to “right eye,” while oculus sinister means “left eye.” Your optometrist uses these terms to note the prescription for each eye.

No one may speak Latin anymore, but the language is still used in the medical field.

Have you ever tried to decipher your eyeglass prescription? Although the numbers and abbreviations written on the script may be meaningless to you, your prescription provides valuable information for the type of corrective lenses you’ll need.