Reference Terms
from Wikipedia, the free encyclopedia

Blindness

Blindness can be defined physiologically as the condition of lacking visual perception.

The complete lack of form and light perception is clinically recorded as "NLP" (an abbreviation for no light perception), but "blindness" also applies to partial visual impairment.

Note:   The above text is excerpted from the Wikipedia article "Blindness", which has been released under the GNU Free Documentation License.
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