How Do Our Eyes Change As We Age?
It seems that all things change over time, and of course our eyes are no exception. Like the rest of our body, our eyes change in shape, size, and capability. Lenses that were once clear become clouded; cells that were once flexible become more rigid – due to simply advancing years or due to Sun-UV exposure, computer screen exposure or health challenges.
Presbyopia & Refractive Errors
Refractive errors are what cause the need for corrective lenses. You may have heard of these as myopia (nearsightedness), hyperopia (farsightedness), astigmatism, and presbyopia. A refractive error is when your eye or part of your eye (usually the cornea) is shaped or sized in a non-ideal manner. This changes how light focuses in your eye, impairing your vision. In some cases, there are distorted parts of the eye that also challenge the ability for sharpness and ease of sight.
Increased Chance of Vision – Threatening Eye Diseases
Many eye diseases, such as glaucoma and macular degeneration, become more probable as we get older. The prevalence of these diseases is a big part of the reason why the Ontario Association of Optometrists (OAO) strongly advise senior citizens to have their eyes examined every year (as opposed to every other year, as recommended for healthy people between ages 20 and 65).
Many eye diseases don’t have symptoms. Detecting them before they cause sight loss is critical in maintaining your visual acuity and comfort and efficiency of vision.