Research Article
Crosslinking vs. Observation in Fellow Eyes of Keratoconus Patients
Table 1
Patient Characteristics of crosslinked and naïve fellow eyes.
| | Patient characteristics | Overall
(N = 79) | CXL fellow eye
Group 1
(N = 30) | Naïve fellow eye
Group 2
(N = 49) | value |
| | Mean age at baseline visit (years) | 24.6 ± 7.9 | 22.0 ± 6.8 | 26.1 ± 8.2 | 0.026 | | Gender | | Male | 55 (70%) | 26 (87%) | 29 (59%) | 0.01 | | Female | 24 (30%) | 4 (13%) | 20 (41%) | | Family history of keratoconus | 7 (9%) | 4 (13%) | 3 (6%) | 0.21 | | Ethnicity | | Caucasian | 45 (57%) | 20 (67%) | 25 (51%) | 0.46 | | African American | 16 (20%) | 4 (13%) | 12 (24%) | | South Asian | 4 (5%) | 1 (3%) | 3 (6%) | | East Asian | 4 (5%) | 1 (3%) | 3 (6%) | | Other | 10 (13%) | 4 (13%) | 6 (12%) | | Eye characteristics | | Eye | | Right | 39 (49%) | 16 (53%) | 23 (47%) | 0.58 | | Left | 40 (51%) | 14 (47%) | 26 (53%) | | Atopic disease | 32 (41%) | 15 (50%) | 17 (35%) | 0.18 | | Eye rubbing | 36 (46%) | 12 (40%) | 24 (49%) | 1 | | Median duration (years) of disease from diagnosis | 0.3 [.1, 2.0] | 0.3 [0.1, 2.0] | 0.8 [0.0, 5.0] | 0.65 | | Contact lens | | Scleral | 7 (9%) | 1 (3%) | 6 (12%) | 0.52 | | Rigid gas permeable | 11 (14%) | 4 (13%) | 7 (14%) | | Soft | 12 (15%) | 6 (20%) | 6 (12%) | | Apical scar | 6 (8%) | 0 (0%) | 6 (12%) | 0.081 | | Vogt striae | 7 (9%) | 3 (10%) | 4 (8%) | 0.7 | | Fleischer ring | 13 (16%) | 4 (13%) | 9 (18%) | 0.76 | | Cone observed clinically | 34 (43%) | 14 (47%) | 20 (41%) | 0.63 |
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Values are presented as mean ± SD, median [interquartile range] or as frequency (percentage).
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