Anisometropia
Anisometropia (pronounced: an-eye-so-me-tro-pee-uh) is a condition in which the two eyes have unequal refractive power. Each eye can be nearsighted (myopia), farsighted (hyperopia) or a combination of both, which can cause blurry vision and depth perception issues.
Etymology
The term "Anisometropia" comes from four Greek words: "an" meaning not, "iso" meaning equal, "metr" meaning measure, and "opia" meaning vision. Thus, it literally means "not equal measure of vision."
Symptoms
Symptoms of anisometropia can include blurred vision, double vision, asthenopia (eye strain), and amblyopia (lazy eye). In severe cases, it can lead to diplopia (double vision) and strabismus (crossed eyes).
Causes
Anisometropia is usually present at birth and may be hereditary. It can also be caused by an eye injury, certain types of eye surgery, or an underlying health condition such as diabetes.
Treatment
Treatment for anisometropia typically involves corrective lenses, such as glasses or contact lenses. In some cases, refractive surgery may be recommended. Other treatments may include vision therapy or the use of a patch to strengthen the weaker eye.
Related Terms
- Myopia - Nearsightedness
- Hyperopia - Farsightedness
- Astigmatism - A condition that causes blurred vision due to the irregular shape of the cornea
- Presbyopia - A condition that causes difficulty focusing on close objects
- Amblyopia - Also known as lazy eye, a condition where vision in one eye does not develop properly
- Strabismus - A condition in which the eyes do not align properly
External links
- Medical encyclopedia article on Anisometropia
- Wikipedia's article - Anisometropia
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