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No abstract

Damage to the retinal ganglion cell layer and the optic nerve was evident after only 45 min of ischemia in normal eyes. This experiment suggests that seriously injured eyes must be protected from high IOP; if IOP elevation is required during vitrectomy, it is essential to reduce the duration of interruption of blood flow to a minimum.

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Our results suggest that POAG is distinguishable from NTG and OH based on evaluations of rim area and rim volume. Patients with NTG tend to have larger cupping, smaller rims, and thinner retinal nerve fiber layers as compared to POAG and OH patients. Thus, HRT topographic parameters are useful to differentiate patients with POAG, NTG, and OH.