Low vision
A visual impairment, not corrected by standard glasses, contact lenses, medicine, or surgery, that interferes with the ability to perform everyday activities. Low vision can be a result of eye conditions such as nystagmus, intraocular trauma, inflammation or retinal conditions such as diabetic retinopathy or age-related macular degeneration (AME). Low vision primarily affects people over age 65. High risk populations include Hispanics and African Americans, who are likely to develop low vision at an earlier age. While lost vision usually cannot be restored, many people can learn to make the most of the vision that remains.
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- Low vision device
A devise to help to improve visual ability of a person with low vision. Low vision devices may be optical or non-optical. Optical devices such as a magnifying glass involve the use of lenses to improve vision whereas non-optical devices such as large print help bring images closer to the eyes.
- Low-grade lymphoma
A lymphoma that tends to grow and spread slowly, in contrast to an intermediate- or high-grade lymphoma which tends to grow and spread more quickly. Low-grade lymphomas include chronic lymphocytic lymphoma and follicular small cleaved cell lymphoma. Also called an indolent lymphoma.
- Low-set ear
A minor anomaly in which the ear is situated below the normal location. Technically, the ear is low-set when the helix of the ear meets the cranium at a level below that of a horizontal plane through both inner canthi (the inside corners of the eyes). The presence of two or more minor anomalies such […]
- Lower GI series
Short for lower gastrointestinal series. A series of x-rays of the rectum, colon and lower section of the small intestine taken after the patient has a barium enema. Barium is a white, chalky substance that coats the organs so they will show up on the x-ray. Also called a barium enema or a barium enema […]
- Lower leg
the part below the knee. The lower leg contains two long bones. The larger of these two bones is the tibia, the smaller one the fibula. The tibia is familiarly known as the shinbone. “Tibia” is a Latin word meaning both shinbone and flute. It is thought that “tibia” refers to both the bone and […]