With normal vision, we can focus on objects close to our face as well as those very far away, and we have the luxury of changing our focus easily from near to far. As we age, however, changing focus becomes increasingly difficult and by the time we reach our forties, we may need glasses or even bifocals to read or to focus on objects close-up, a condition known as presbyopia. In its early stages, presbyopia may go unnoticed, often becoming apparent only when the loss of elasticity dramatically impairs vision. This impairment usually becomes noticeable in the early-to-mid-forties.
Presbyopia is a direct result of aging. As we get older, the lenses in the eyes lose some of their elasticity, robbing them of their ability to change focus for different distances. Presbyopia may seem to occur suddenly, but the loss of flexibility actually occurs gradually over the years. Long before you realize that seeing up close is more difficult, the lenses in the eyes have begun to lose their ability to flatten and thicken.
All comprehensive examinations at Kleiman | Evangelista Eye Center include presbyopia testing. The doctors at Kleiman | Evangelista Eye Center conduct refractive evaluations, which determine whether your eyes focus light rays exactly on the retina up close and at distance, and a visual acuity test will determine your ability to see sharply and clearly at all distances. During your examination the Kleiman | Evangelista team will also check your eyes' coordination, muscle control and ability to change focus, all of which are important factors in how your eyes see.
Many people use reading glasses and contact lenses as temporary treatments for presbyopia. There are a number of vision correction procedures, however, that can surgically reduce or eliminate the effects of presbyopia, including monovision, which allows them to see clearly at distance with one eye and close-up with the other. Presbyopia can be present in combination with other types of refractive errors, such as myopia (nearsightedness), hyperopia (farsightedness) and astigmatism.