versão impressa ISSN 0004-2749versão On-line ISSN 1678-2925
Arq. Bras. Oftalmol. vol.60 no.2 São Paulo abr. 1997
The contrast sensitivity function was measured with sine-wave gratings and the tumbling E in patients with cataract, optic neuropathy and background diabetic retinopathy and compared with a normal control group. For the patients with optic neuropathy the low-frequency lasses were more evident with sine-wave gratings. On the other hand, the high spatial frequency losses showed by the patients with cataract were greater with the tumbling E.