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Ophthalmic Physiol Opt. 2013 Nov;33(6):652-60. doi: 10.1111/opo.12082. Epub 2013 Jun 27.

Prevalence of myopia-related retinal changes among 12-18 year old Hong Kong Chinese high myopes.

Author information

1
Centre for Myopia Research, School of Optometry, The Hong Kong Polytechnic University, Hong Kong, China.

Abstract

PURPOSE:

To determine the prevalence and risk factors of myopia-related retinal changes in Hong Kong Chinese adolescents with high myopia.

METHODS:

A cross-sectional study on Hong Kong Chinese teenage subjects with high myopia was conducted between January 2005 and June 2009. Subjects were recruited via newspaper advertisements, invitation letters to schools, leaflets and posters. Data collected included history related to myopia progression and retinal characteristics.

RESULTS:

In total, 120 subjects (61 boys and 59 girls) were recruited. The mean age was 14.8 ± 1.6 years (range: 12-18 years). The mean SER of the eyes was -8.41 ± 1.60 D. Ninety four of the 120 adolescents were found to have a retinal change of which 0.8% were sight-threatening, 2.5% were posterior pole changes, and 61.7% were peripheral retinal changes. The five most frequent retinal changes found were optic nerve crescents (52.5%), white-without-pressure (51.7%), lattice degeneration (5.8%), microcystoid degeneration (5%) and pigmentary degeneration (4.2%). After adjusting for myopia over -8 D, age, gender, duration of myopia, family retinal history and intraocular pressure (IOP), binary logistic regressions showed that an axial length longer than 26.5 mm was a significant risk factor for peripheral retinal changes, optic nerve crescents and white-without-pressure.

CONCLUSIONS:

Peripheral retinal degenerative changes and optic nerve crescent were found in a significant proportion of high myopic teenage subjects. There is increased risk of retinal changes in eyes with an axial length >26.5 mm in 12-18 year-olds.

KEYWORDS:

Chinese; myopia; prevalence; retinal changes

PMID:
23808574
DOI:
10.1111/opo.12082
[Indexed for MEDLINE]

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