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Abstract #24730 Published in IGR 11-4
Visual field progression in moderate and severe primary open angle glaucoma patients after trabeculectomy
Wang W-J; Yuan Y-SInternational Journal of Ophthalmology 2009; 9: 1502-1504
AIM: To investigate the condition for visual field progression after trabeculectomy in moderate and severe primary open angle glaucoma by mean defect (MD), pattern standard deviation (PSD). METHODS: Forty-seven cases (60 eyes) after trabeculectomy in primary open angle glaucoma were selected. Subjects were divided into two groups: visual field progressive group and visual field steady group with the Advanced Glaucoma Intervention Study (AGIS) scoring method. Two groups were classified as early stage, moderate stage and severe stage by visual fields before operation with the Modified Hodapp-Parrish- Anderson Visual Fields Grading System. To observe two groups moderate and severe change of MD and PSD in postoperation compared with that in the preoperation. Then, a comparison between two groups was maked. RESULTS: Visual field steady group: absolute value of MD after trabeculectomy in early stage dramatically dropped compared with preoperation, and there was statistically significant difference (P < 0.01). PSD rised compared with preoperation with obvious turn for the better (P < 0.05). Visual field progressive group: absolute value of MD after trabeculectomy in early stage were lower than preoperation, and there was no statistically significant difference (P > 0.05). PSD increased compared with preoperation with obvious turn for the better (P < 0.05). As follow-up years prolonging, both of the MD ascended, and visual field progressive group was higher than visual field steady group in postoperation. But there was no significant difference in two groups in PSD. CONCLUSION: The moderate and severe primary open angle glaucoma after trabeculectomy appears good effect in early stage, but with the follow-up extended, field of vision shows deteriorating trend. LA: Chinese
W.-J. Wang. Department of Ophthalmology, Kunming Medical College, Yuxi 653100, Yunnan Province, China. shuangxi1979@yahoo.com.cn
Classification:
13.2.2.1 Progression (Part of: 13 Therapeutic prognosis and outcome > 13.2 Outcome > 13.2.2 Visual field)
12.8.1 Without tube implant (Part of: 12 Surgical treatment > 12.8 Filtering surgery)
