Effects of sildenafil citrate (Viagra) on choroidal congestion

Timothy J. McCulley, James K. Luu, Michael F. Marmor, William J. Feuer

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

This study evaluates the effect of sildenafil on choroidal vascular congestion and its correlation with visual effects. Thirteen healthy subjects were randomized to a sildenafil group (n = 7, 3 M, 4 F), who received 200 mg of sildenafil, and a control (n = 6, 5 F, 1 M) group, who received no drug. Measurements of choroidal thickness with ultrasonography, color vision with Desaturated Panel D-15 Test, and contrast sensitivity with CSV-1000e charts (Vector Vision) were performed at baseline and at 90 and 180 min. Mean choroidal thickness and contrast sensitivity did not change significantly relative to baseline in either group. However, the variance in differences between repeat and baseline measurements of choroidal thickness was significantly higher at 90 min (p =0.003) in the sildenafil subjects. Color discrimination error scores increased after sildenafil but did not correlate with changes in choroidal thickness. An oral dose of 200 mg of sildenafil caused small inconsistent changes in choroidal thickness, which did not correlate with visual effects.

Original languageEnglish (US)
Pages (from-to)455-458
Number of pages4
JournalOphthalmologica
Volume216
Issue number6
DOIs
StatePublished - Dec 1 2002

Keywords

  • Blood flow
  • Choroid
  • Choroidal congestion
  • Color vision
  • Contrast sensitivity
  • Ocular
  • Ophthalmology
  • Side effects
  • Sildenafil
  • Viagra

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems

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  • Cite this

    McCulley, T. J., Luu, J. K., Marmor, M. F., & Feuer, W. J. (2002). Effects of sildenafil citrate (Viagra) on choroidal congestion. Ophthalmologica, 216(6), 455-458. https://doi.org/10.1159/000067549