Abstract
Purpose To evaluate corneal topographic features and tear secretion in eyes with the Hudson–Stahli line.
Methods Keratometry, computerized videokeratography and Schirmer testing were performed in 50 cases with bilateral Hudson–Stahli line, and 55 controls without the Hudson–Stahli line. Similar tests were performed in 21 subjects with unilateral Hudson–Stahli line.
Results Corneal topographic features and keratometry in the horizontal meridian were similar in cases and controls, and in fellow eyes of subjects with unilateral Hudson–Stahli line. Keratometry in the vertical meridian in cases (43.01 ± 2.01) was significantly lesser than in controls (43.94 ± 1.77) (P = 0.01). This value was not different in fellow eyes of patients with unilateral Hudson–Stahli line. Schirmer testing revealed significantly greater tear secretion in cases (16.72 ± 4.99 mm) compared to controls (12.57 ± 3.62 mm) (P < 0.01). In subjects with unilateral Hudson–Stahli line, mean Schirmer values in the eye with the line (17.52 ± 6.86 mm) were significantly greater than in eyes without (13.67 ± 4.64 mm) (P = 0.04).
Conclusion Formation of the Hudson–Stahli line may be dependent on the presence of normal tear secretion in the eye.
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Rao, S., Ananth, V. & Padmanabhan, P. Corneal topography and Schirmer testing in eyes with the Hudson–Stahli line. Eye 16, 267–270 (2002). https://doi.org/10.1038/sj.eye.6700028
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DOI: https://doi.org/10.1038/sj.eye.6700028
