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Pupil
Appears as a small black dot in the centre of the iris. The pupil changes its diameter in response to changes in ambient lighting. The pupil varies the amount of light reaching the retina and the depth of focus of the eye.
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- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Eyewear
- Category: Optometry; Contact lenses; Eye surgery
- Company:
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