Vision is a dynamic, changing process that is highly individualized. No one sees exactly the same as you do. No two eyes— even your right eye compared with your left—are quite the same. Nor do they remain the same as you go through life.
Though the eye is quite durable, it’s also an irreplaceable, delicate, sensitive, and highly sophisticated organ. Your eye is directly connected to your brain by the optic nerve and is closely related to other systems of your body. It shouldn’t be considered independently, and before you walk off with a pair of contact lenses you should undergo a complete medical eye examination by an ophthalmologist. Read the rest of this entry »
The lens in your eye can only adjust so much in an effort to bring objects into focus. When the eye can’t focus properly, there are four basic conditions that may be the cause. These are called refractive errors (myopia, hyperopia, astigmatism, and presbyopia). Luckily, all are correctible with contact lenses or spectacles. Most of these refractive errors are a result of heredity.
Nearsightedness (Myopia). This occurs when the eyeball is too long for the lens’s focal capacity. The patient’s cornea and lens focus the image of a distant object in front of the retina, so vision is blurry except when looking at nearby objects. Myopia affects one quarter of the world and seems to be on the rise, though it’s a mystery why. Most contact lens wearers are myopes. Read the rest of this entry »
Contact lenses float on a layer of tears that covers the cornea and are held in place by surface tension. Soft lenses ride on a thinner layer of tears than hard lenses. The front and back surfaces of contact lenses serve different functions. The back surface is designed to fit the contour of the cornea itself as closely as possible to make the lens fit comfortably and, in the case of a hard lens, to provide a new, round, smooth surface. The front surface is designed to fit your prescription, which corrects your refractive error. How well your eyes are examined and measured, and how closely the contact lenses‘ size, fit, and shape come to these measurements are, therefore, very important factors in how successfully you’ll be wearing your lenses. Everything is done with highly sophisticated and accurate optical instruments, in combination with a contact lens practitioner’s experience and knowledge. Read the rest of this entry »
Contact Lenses Care .
