Would an ear infection cause blur vision,
Ear Infection 50 370 830 2500 3000 (sq 7330 9575 1750 2697-1 3550-8) Hz
Yes, if the infection is also in the eye sockets.
Ear Diseases 550 900 5150 (sq 5534 1510-9 3875 4525 6218-1 8705-3 9210-2) Hz
and for completeness,
Inner Ear Disease 110 240 570 (sq 2818-3 3010-9 3924-1 4311-9 6725-3 7035-4 8216-9) Hz
For better vision.