Keratoconus in Asians: demographics, clinical characteristics and visual function in a hospital-based population

Autor: Rui H Wei, Wei-Boon Khor, Choi M Chan, Li Lim, Donald T.H. Tan
Rok vydání: 2011
Předmět:
Zdroj: Clinical & Experimental Ophthalmology. 39:299-307
ISSN: 1442-6404
DOI: 10.1111/j.1442-9071.2010.02458.x
Popis: Background: To describe the demographics, clinical characteristics and visual function of Asian patients with keratoconus managed in a tertiary eye centre. Design: Prospective cross-sectional study. Participants: 116 patients with clinically evident or suspected keratoconus (on videokeratography) recruited over 11 months. Methods: A standardised interview, full ophthalmic examination, refraction and corneal topography were performed. Visual function was assessed with the VF-14 questionnaire. Main Outcome Measures: Demographics, clinical characteristics and visual function. Results: Mean age of our patients was 29.5 ± 9.40 years on enrolment, 62.9% were male, and the ethnic distribution was 60.3% Chinese, 13.8% Malays and 9.5% Indians. Clinically evident keratoconus was present bilaterally in 65 patients (56.0%) and unilateral keratoconus in five patients (4.3%). Five patients (4.3%) had a family history of keratoconus. The majority of patients were managed with contact lenses (60.8%) or glasses (24.5%). Eye rubbing was common (68%) as were asthma (26.3%) and eczema (18.4%). Conical protrusion was the commonest sign (75.3%). The mean cylinder was higher in keratoconus eyes compared with keratoconus suspect eyes (−4.01 vs. −1.27, P
Databáze: OpenAIRE