[Zhonghua yan ke za zhi] Chinese journal of ophthalmology · 2000
[A study on correlation between the structural parameter of optic disc and visual field in primary open-angle glaucoma].
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Pan Y, Li M
Аннотация
OBJECTIVE: To study the consistency between the optic disc neural rim depth (NRD) and visual field defect in patients with primary open angle glaucoma (POAG).
METHODS: A system of computerized image analysis was used to measure the relative NRDs of temporal-superior and temporal-inferior area of the optic disc in patients with primary open angle glaucoma. The consistency between the area with relatively larger NRD and the location of severer visual field defect was investigated.
RESULTS: In cases with early and middle stage POAG, the value of NRD corresponding to the severer location of the visual field defect was significantly larger than that corresponding to the location without or with mild such defect. Among 54 eyes, there were 46 eyes whose location with larger NRD value was consistent with the position of severer visual field defect, the rate of consistency being 85.2%.
CONCLUSION: In cases with early and middle stage POAG, the increase of NRD value at temporal-superior and temporal-inferior area is asymmetrical, and the consistency between the area with larger NRD value and the corresponding position of severer visual field defect is relatively good. NRD is helpful to the early diagnosis of POAG.
METHODS: A system of computerized image analysis was used to measure the relative NRDs of temporal-superior and temporal-inferior area of the optic disc in patients with primary open angle glaucoma. The consistency between the area with relatively larger NRD and the location of severer visual field defect was investigated.
RESULTS: In cases with early and middle stage POAG, the value of NRD corresponding to the severer location of the visual field defect was significantly larger than that corresponding to the location without or with mild such defect. Among 54 eyes, there were 46 eyes whose location with larger NRD value was consistent with the position of severer visual field defect, the rate of consistency being 85.2%.
CONCLUSION: In cases with early and middle stage POAG, the increase of NRD value at temporal-superior and temporal-inferior area is asymmetrical, and the consistency between the area with larger NRD value and the corresponding position of severer visual field defect is relatively good. NRD is helpful to the early diagnosis of POAG.