Glaucoma & Cataract, Prof. Eytan Blumenthal

Conditions Requiring Glasses

Nearsightedness (Myopia)

The Necessity for Glasses in Order to See Clearly From a Distance Myopia is a condition in which a healthy eye is slightly, up to a few millimeters, larger than a standard sized eye. As a result, the eye is not in focus, the image that one views, does not fall precisely on the retina …

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Farsightedness (Hyperopia)

Eyes that require glasses can be divided into those that are nearsighted and those that are farsighted. Those that are nearsighted (myopic) require glasses with a minus number, while those that are farsighted (hyperopic) require glasses with a plus number. A farsighted (hyperopic) eye, is an eye that is somewhat smaller than average. If a …

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Astigmatism and Cylinder

This section discusses astigmatism and cylinder. These are two phrases that people who wear glasses often hear, but do not always receive a thorough enough explanation on what they actually mean. Shortly I will try to explain these terms in a simple manner, comprehensible also to those that have not majored in optics and physics …

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Presbyopia

The Necessity for Reading Glasses over the Age of 45 Throughout the course of a person’s life, the eye undergoes various changes in structure and function. These are normal changes and do not indicate illness. One of these changes is connected to the fact that the natural lens, which is responsible for the focusing mechanism …

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Reading Glasses

It is not good news for a person who never wore glasses their entire life, to suddenly, some point between the ages of 44 and 47, “giving in” and visiting an optometrist complaining that he/she can no longer see objects that are nearby in focus, and that he has difficulty reading small letters, particularly for …

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