How Do Contact Lenses Work?
“Perfect vision” occurs when light rays converge at a point directly on the retina (on the back of eyeball). About four in ten people have “perfect” vision. For the rest, clear vision may be achieved by refocusing light rays using corrective lenses.
Contact lenses are delicately made, very thin optical discs about the diameter of a shirt button. They are comfortably held in place by the eyes own natural tears, which are always present between the lens and the eye.
What Products Should I Use To Clean My Contact Lenses?
· Multipurpose Solution – This is the most popular cleaning solution for contact lenses. Used for rinsing, disinfecting, cleaning and storing the lenses. The easiest way to clean your contact lenses.
· Saline Solution – For rinsing the lens after cleaning and preparation before use..
· Daily Cleaner – Used for cleaning lenses every day. Put a few drops of cleaner on the lens and rubs for about 20 second on each side.
· Hydrogen Peroxide Solution – Used for disinfecting the lenses, and available as two-step or one-step systems. If using a two-step product, you must ensure that the lens taken out of the hydrogen peroxide is neutralized before it is worn, or else wear will be very discomforting.
· Enzymatic Cleaner – Used for cleaning the protein off of lenses weekly basis, if the daily cleaner is not sufficient. Protein deposits make the contact lenses uncomfortable, and may lead to various eye problems.
Contact lenses can be used to correct short-sightedness, long-sightedness, astigmatism and presbyopia.