In an eye with presbyopia, the image of what is being viewed falls in back of the eye, necessitating glasses to focus the image directly on the back of the eye (retina). People with presbyopia find that they need to hold reading material farther away in order to see it, indicating that they need reading glasses. In the normal eye, the image of what is being viewed falls directly on the back of the eye (retina).
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Presbyopia  Information for adults

Picture of Presbyopia: In an eye with presbyopia, the image of what is being viewed falls in back of the eye, necessitating glasses to focus the image directly on the back of the eye (retina). Divider line
In an eye with presbyopia, the image of what is being viewed falls in back of the eye, necessitating glasses to focus the image directly on the back of the eye (retina).
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Who's At Risk
Anyone aged 40 and beyond will experience presbyopia. The timing of it is dependant upon the underlying requirement for vision correction. Meaning, if you are normally nearsighted (myopia) and wear corrective lenses for this, you might not be aware of difficulty with presbyopia until later in life (ie, latter 40s or early 50s). However, if you are normally farsighted (hyperopia), you may experience presbyopia even before age 40. Certain general medical conditions, such as diabetes and high blood pressure, can affect the course and degree of presbyopia.
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Last Modified: 22 Dec 2008
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