Flu affects eyesight,
Human Influenza 80 250 570 7500 (1053 1250 4000 133-5 3200 6150) Hz
and bacteria that causes acne can live in the eye sockets,
Pseudofolliculitis Barbae 170 870 2500 ( sq 2750 8250 8552 1650 6958-3 8753-6) Hz
for completeness,
Parasites follicular mange 520 680 970 2500 (sq 2750 3591 9543 3753-7 5336-3 6536-9) Hz
Good luck.
