Corneal Astigmatism in Unilateral Fuchs Heterochromic Iridocyclitis

Purpose: To analyze the results of scanning slit topography in both eyes of patients with unilateral Fuchs heterochromic iridocyclitis (FHI). Methods: A noninterventional, case-controlled study was conducted with 30 patients with unilateral FHI. Corneal topographic parameters, obtained with the Orbscan II (Bausch & Lomb), were compared between the two eyes and analyzed statistically. The same number of age-matched normals was enrolled as a control group. Results: Thirty patients were enrolled in this study. The mean age was 33.3 years +/-+/- 10.6 (SD). The mean Sim K astigmatism was 1.65 +/-+/- 1.27 diopter in the FHI eyes and 0.88 +/-+/- 0.52 diopter in the normal eyes (p == .001). Conclusion: Corneal astigmatism is a common finding in patients with FHI and disparity of corneal astigmatism between the two eyes can be considered a sign of the unilateral form of this disease.