W. 42 - 2 Incredible Cameras

Click , click ?
No. You don't even hear a click as your eyes keep on taking instant color pictures.
How often do the lenses have to be cleaned ?
Baruch Hashem , thank Him for designing an automatic cleansing system which dissolves all dust & spreads an antiseptic fluid to keep the eyes spotless & germless. It happens about every 5 seconds & we don't even notice it.
Do we need to apply any wipers ?
Believe it or not , Hashem has created an eyelid cover with an automatic blinking / cleansing system. The eyeshield wipers disappear on top when not in use , but they can be lowered intentionally at any time to shield the eyes from improper harmful sights or they close for a blink by Hashems built in programming.
But we have a homework question for you - what is the signifigance of tears & why are they linked to the eyes ?
Now may be a good time for a gem of Torah study.
www.GemsofTorah.com