Which Condition Is Also Called "Night Blindness

question 117

Multiple Choice

Which condition is also called "night blindness"?

• A) Macular degeneration
• B) Glaucoma
• C) Cataracts
• D) Nyctalopia

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Definitions:

Biological Clock

An internal mechanism that regulates physiological and behavioral functions on a cyclical basis, such as sleep and wakefulness.

Melatonin

A hormone produced by the pineal gland that regulates sleep and wakefulness cycles.

Adrenalin

Also known as epinephrine, a hormone and medication which increases heart rate, muscle strength, blood pressure, and sugar metabolism, often in response to stress.

Circadian Cycle

A natural, internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours.