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Welcome to the comprehensive optical library of banville optical. The information shared below is provided to you as an educational and informational source only and is not intended to replace a optical examination or consultation, or optical advice given to you by a physician or optical professional.

If you have any questions or concerns regarding any condition or treatment, please contact banville optical at (978) 745-2774.

Understanding Vision ProblemsDescripci³n de algunos problemas de la visi³n

Understanding Vision Problems

If Your Eyes Are Normal

Your eyes see objects as light. The cornea focuses light rays onto the retina (a layer that lines the back of the eye). If your eyes are normal, this process produces a focused image on the retina. This makes objects look clear.

If You're Nearsighted

The cornea and the retina are too far apart if you're nearsighted. Sometimes, the cornea is also too curved. This makes light rays from distant objects focus in front of the retina. These objects then look blurry.

If You're Farsighted

The cornea and the retina are too close together if you're farsighted. Sometimes, the cornea is also too flat. This makes light rays from close objects focus behind the retina. These objects then look blurry.

If You're Astigmatic

If the curve of the cornea is uneven, light rays cannot focus on just one point on the retina. Instead, they focus on two or more points, either in front of or behind the retina. This makes close and distant objects look blurry.

Date Last Reviewed:

Date Last Modified: 2008-07-15T00:00:00-06:00

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