Pattern @entity9493 in XXXX .

@entity1 @entity227 @entity9493 @entity989 @entity9362
BACKGROUND: To evaluate the pattern electroretinogram (PERG) in @entity989 . METHODS: In this prospective study, 20 @entity1 with recent onset (<6  weeks) unilateral @entity9362 were studied with the fellow eye acting as control. BCVA, psychophysical parameters, FFA, OCT, flash and pattern @entity9493 were evaluated. RESULTS: The mean P50 amplitude in the affected eye at presentation was 2.36      0.8  v compared to 3.24      0.85  v in the normal eye. At 12  weeks, the mean P50 amplitude in the affected eye was 3.16      0.88  v compared to 3.63      0.82  v in the normal eye. The reduction of 27  % in P50 amplitude even after recovery was statistically significant (P  <  0.001). A reduction of 19.77  % in the amplitude of N95 wave in the affected eye compared to the normal eye was seen, which was statistically significant (P  <  0.001). In the affected eye, there was statistically significant improvement in the psychophysical tests at 12  weeks. CONCLUSIONS: This study reveals that P50 component of the PERG is reduced in cases of @entity9362 , indicating functional disturbance of the macular photoreceptors. A normal flash @entity9493 indicates that pathology is electrophysiologically localised to macula without affecting general retina. Residual deficit in the PERG explains poor @entity227 in spite of normal anatomical apposition and quantitative 6/6 visual acuity.
