Ophthalmology Question:

The tear film:

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Answer:

* a) Contributes to the refractive function of the eye
* b) Is partly formed from the goblet cells
* c) Is 100um thick?
* d) Its normal break-up time is 5 to 15 seconds
* e) Is decreased with topical atropine

Answer a. T b. T c. F d. F e. T

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The intraocular pressure can fluctuate:The human lens: