期刊
EXPERIMENTAL EYE RESEARCH
卷 114, 期 -, 页码 128-140出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.exer.2013.01.014
关键词
sclera; myopia; collagen; transforming growth factor-beta; myofibroblast; glycosaminoglycans
资金
- National Health and Medical Research Council of Australia
- Welcome Trust, UK
Myopia is one of the most prevalent ocular conditions and is the result of a mismatch between the power of the eye and axial length of the eye. In the vast majority of cases the structural cause of myopia is an excessive axial length of the eye, or more specifically the vitreous chamber depth. In about 3% of the general population in Europe, USA and Australia, the degree of myopia is above 6 dioptres and is termed high myopia. In South East Asia the figure is closer to 20% of the general population with high myopia. The prevalence of sight threatening ocular pathology is markedly increased in eyes with high degrees of myopia (>-6 D). This results from the excessive axial elongation of the eye which, by necessity, must involve the outer coat of the eye, the sclera. Current theories of refractive development acknowledge the pivotal role of the sclera in the control of eye size and the development of myopia. This review details the major structural, biochemical and biomechanical changes that underlie abnormal development of the mammalian sclera in myopia. In describing the changes in regulation of sclera metabolism in myopia, the pivotal role of transforming growth factor-beta signalling is highlighted as the responsible factor for certain critical events in myopia development that ultimately result in the scleral pathology observed in high myopia. (C) 2013 Elsevier Ltd. All rights reserved.
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