Journal article
Heidelberg retinal tomography of optic disc and nerve fiber layer in Singapore children: Variations with disc tilt and refractive error
Louis Tong, Yiong-Huak Chan, Gus Gazzard, Seng-Chee Loon, Allan Fong, Prabakaran Selvaraj, Paul R Healey, Donald Tan, Tien Yin Wong, Seang Mei Saw
INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE | ASSOC RESEARCH VISION OPHTHALMOLOGY INC | Published : 2007
DOI: 10.1167/iovs.07-0585
Abstract
PURPOSE: To evaluate the relationships in Singapore school children between optic nerve head parameters and retinal nerve fiber layer thickness images by using the Heidelberg Retinal Tomograph (HRT; Heidelberg Engineering, Heidelberg, Germany) and determining optic disc tilt and refractive error. METHODS: This was a cross-sectional study involving 316 children 11 and 12 years of age (163 girls and 153 boys) selected randomly from one of the three schools in the Singapore Cohort study of Myopia. A total of 13 optic disc parameters were obtained from HRT images acquired before cycloplegia. Refractive errors were measured by cycloplegic autorefraction. The presence of optic disc tilt or otherwi..
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