CALCIFICATION BREAKS DOWN SHARP POINT

Science Illustrated - - HUMANS -

The light-sen­si­tive cells are par­tic­u­larly densely packed in a re­gion called the mac­ula. Any dam­age here cre­ates a spot at the cen­tre of the field of vi­sion. It's re­spon­si­ble for 50% of blind­ness.

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