Your Eye Prescription Explained. Simple eye prescription explanationThe eye prescription explained for you in simple terms.Easy eye prescription explanation:All the numbers and letters of your glasses prescription clearly explained.
After an
eye test
your
optometrist
will present you with an eye prescription, this will indicate the amount of long or short sight you may have and also whether you have any astigmatism.Most spectacle prescriptions are valid for a period of 2 years. Children's older people and patients with certain eye conditions prescriptions are usually valid for one year.Your own optometrist can verify this at the time of your eye examination.
Eye Prescription Explanation: Distance is the strength of lenses required for your distance vision. RIGHT refers to your right eye (RE), LEFT to your left.(LE) SPH (sphere) The strength of lens required to correct your eyesight. Plus (+) lenses are used to correct
long sight/hyperopia
CYL (cylinder) Amount of correction to remove any astigmatism caused by an irregularly shaped cornea . AXIS The axis direction between 0 and 180 degrees that the cylinder will be built into your spectacle lenses to correct your astigmatism. PRISM Any correction to help balance your eye muscles so they work as a pair more comfortably will be written in this box BASE The direction that the prism if required (up/down/in/out ) will be built into your lenses. ADD Inter The amount of correction if needed to be added to your distance lens strength to enable you to cope with intermediate distances, such as working at a computer . ADD Near This is the amount of correction added to your distance lens strength to enable you to see close objects clearly, eg:reading a book
(usually for presbyopic patients over 45yrs of age)
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