Eye Care Blog

Among people who need reading glasses because of blurry near vision, some of them may experience prescription change. In detail, when they begin with a low power lens, they need a higher prescription after a certain period. The old pair of reading glasses does not work any more. In this case, most of these unfortunate wearers may blame reading glasses that they damage their vision. This is not the truth.

Reading glasses never hurt the wearers’ eyes. The eyesight deterioration those people suffer is because of natural aging. This universal process will happen to every human being. A pair of reading glasses only helps the eyes focus light properly by bending it. More exactly, reading glass lenses can magnify the images entering the eyes. This is the exact function of reading glasses. When people suffer from blurry vision because of presbyopia, reading glasses could be a good solution. They can effectively correct damaged vision.

However, eyesight in presbyopic individuals always continues to deteriorate even if they have worn reading glasses. This is well-founded because of changes in the eye, rather than damage caused by reading glasses. People over 40 years old usually get presbyopia and suffer blurry vision when they try to focus on near and small print. This visual deterioration comes from the loss of elasticity of the lens in the eye. A healthy crystalline lens is elastic enough to adjust focus between near and far objects. But as the body ages, the lens also lose its elasticity gradually. This is the real reason for blurry vision. The key point is that this loss of lens elasticity will continue during the whole aging process of an ordinary person. This appropriately explains why presbyopic people need to change their prescriptions.

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