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Br J Ophthalmol 84:1024-1026 doi:10.1136/bjo.84.9.1024
  • Original Article
    • Clinical science

Visual prognostic value of the pattern electroretinogram in chiasmal compression

Table 2

Change in visual acuity (VA) for eyes with normal and abnormal (<1.1) preoperative N95:P50 ratios. Column percentages are shown

VA Abnormal N95:P50 Normal N95:P50 Total
Worse 4  (26.67%) 13  (22.81%) 17  (23.61%)
No change 2 (13.33%) 21 (36.84%) 23 (31.94%)
Improved 9 (60.00%) 23 (40.35%) 32 (44.44%)
Total 15 (100.00%) 57 (100.00%) 72 (100.00%)

  • Fisher's exact test (p=0.224).

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