Vascular Response to Sildenafil Citrate in Aging and Age-Related Macular Degeneration.

185.2 ± 60.2 μm, P = 0.004), and showed a trend toward slower choroidal expansion after sildenafil treatment (0.6 ± 1.2% vs. 6.8 ± 4.9% at 1 hour and 5.0 ± 1.6% vs. 8.1 ± 7.1% at 3 hours, P = 0.090) (Fig. 1L ), although this association was not statistically significant when adjusted for age (P = 0.309).

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