macular degeneration

American  

noun

Ophthalmology.

1. degeneration of the central portion of the retina, resulting in a loss of sharp vision.

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macular degeneration British  

noun

1. pathological changes in the macula lutea, resulting in loss of central vision: a common cause of blindness in the elderly

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macular degeneration Scientific  

/ măk′yə-lər /

1. A progressive condition, usually seen in the elderly, characterized by a gradual loss of vision in the central area of the visual field and eventual blindness.

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Example Sentences

In the United States, age-related macular degeneration is one of the most common causes of permanent vision loss in adults who are 60 and older.

From Science Daily

"Free oxygen radicals damage proteins, which causes them to misfold and aggregate, then fatty protein deposits called drusen begin to accumulate, which is the main diagnostic criterion for the dry form of age-related macular degeneration."

From Science Daily

A tiny wireless chip placed at the back of the eye, combined with a pair of advanced smart glasses, has partially restored vision to people suffering from an advanced form of age-related macular degeneration.

From Science Daily

Kelly Pardy was born with juvenile macular degeneration - a visual impairment that affects her central vision.

From BBC

Smoking also at least doubles the risk of macular degeneration, which Evelyn developed.

From The Wall Street Journal