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Abstract #10844 Published in IGR 6-2
Comparison of blue-on-yellow perimetry with standard automated perimetry in early diagnosis of POAG
Shi Y; Chang B; Yi E; Guo J; Cao Y; Li NChinese Ophthalmic Research 2004; 22: 319-321
OBJECTIVE: To assess the value of blue-on-yellow perimetry in the diagnosis of early open-angle glaucoma. METHODS: Forty-four eyes of 22 patients with early open angle glaucoma and 40 normal eyes were examined by the blue-on-yellow (short wavelength,B/Y) perimetry and standard automated (white-on-white,W/W) perimeter. The mean light sensitivity (MS) of the central 30° and each quadrant from two perimetries were calculated and analyzed statistically. RESULTS: The difference of MS in central 30° between two perimetries was 4.24 dB (t = 18. 12, P < 0. 01) in normal group. MS was significantly higher in W/W than in B/Y either in central 30° or in each corresponding quadrant (P < 0.01). The MS difference between them was more than 5.58 dB (t = 6.45, P < 0.01), and the MS average difference of the corresponding quadrant was more than 5 dB (P < 0.01). MS from four quadrant were different from other one. The lowest MS was in the superior temporal and the highest in inferior nasal quadrant. The defects in B/Y perimetry were larger and deeper than that in W/W perimetry. The result of corrected deviation points revealed that the defected testing points form B/Y perimetry were 2.23 times higher that from W/W perimetry. In the early glaucoma group, abnormal visual field rate from B/Y perimetry was 72.73% (32/44) and 38.64% (17/32) form W/W perimetry. CONCLUSION: A good coincidence is demonstrated between B/Y and W/W perimetries both in normal and in early open angle glaucoma groups. B/Y perimetry is more sensitive than W/W perimetry to early glaucoma. LA: Chinese
Y. Shi, Department of Ophthalmology, Xi'an Central Hospital, Xi'an 710003
Classification:
6.6.3 Special methods (e.g. color, contrast, SWAP etc.) (Part of: 6 Clinical examination methods > 6.6 Visual field examination and other visual function tests)
