Reversal of Cupping in Experimental Glaucoma

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Abstract
We studied the change in the optic disk topography during spontaneous pressure reduction in laser-induced primate glaucoma (7 eyes, follow-up of 20 weeks) using computerized image analysis (vertical and horizontal cup-to-disk ratios CDR(V), CDR(H); neuroretinal rim area/disk area; cup volume/disk area). A significant correlation was found between the percent pressure reduction and the percent reversal in each disk parameter. There was no significant difference in the percent reversal between CDR(V) and CDR(H). These results suggest that reversal of cupping may depend on the percent pressure reduction, and may occur symmetrically in primate glaucoma.

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