"Unexplained" visual loss in axial myopia: cases caused by mild nuclear sclerotic cataract.

Mild nuclear sclerotic cataract is often an unappreciated causes of visual acuity loss in patients with axial myopia. These patients have media which are better than the distance acuity would suggest. Clues to the correct diagnosis are: (1) monocular diplopia, (2) near acuity more compatible with the media, and (3) retinoscopic evidence of nuclear sclerosis.