Corneal topography and Schirmer testing in eyes with the Hudson-Stahli line

• Published in: Eye (London) Vol. 16; no. 3; pp. 267 - 270
• Main Authors: RAO, S. K, ANANTH, V. S, PADMANABHAN, P
• Format: Journal Article
• Language: English
• Published: Basingstoke Nature Publishing Group 01.05.2002
• Subjects: Adult; Aged; Aged, 80 and over; Biological and medical sciences; Case-Control Studies; Corneal Diseases - pathology; Corneal Diseases - physiopathology; Corneal Topography; Diseases of cornea, anterior segment and sclera; Epithelium, Corneal - pathology; Female; Humans; Male; Medical sciences; Middle Aged; Ophthalmology; Tears - metabolism; Human; Eye disease; Cornea; Pathophysiology; Topography; Keratopathy; Iron; Deposition; Schirmer test
• ISSN: 0950-222X; 1476-5454
• DOI: 10.1038/sj.eye.6700028

To evaluate corneal topographic features and tear secretion in eyes with the Hudson-Stahli line. 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. 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). Formation of the Hudson-Stahli line may be dependent on the presence of normal tear secretion in the eye.