Macular thickness profile and diabetic retinopathy: the Singapore Epidemiology of Eye Diseases Study
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AbstractBACKGROUND:

To evaluate retinal thickness profiles in eyes with and without diabetic retinopathy (DR) using spectral-domain optical coherence tomography (SD-OCT) among individuals with diabetes.
METHODS:

Participants were recruited from the Singapore Epidemiology of Eye Diseases Study, a population-based study among Chinese, Malays and Indians aged 40 years or older residing in Singapore. All participants underwent standardised systemic and ophthalmic examinations. Average thickness of the macula, ganglion cell-inner plexiform layer and outer retina layer (from the outer plexiform layer to the retinal pigment epithelium layer) were measured using SD-OCT. DR status and severity were graded based on fundus photographs using the modified Airlie House classification system. Participants with macular oedema were excluded.
RESULTS:

2240 eyes from 1280 participants were included. Of these, 1764 (78.7%) eyes had no DR, 351 (15.7%) eyes had minimal or mild DR and 125 (5.6%) eyes had moderate or worse DR. After adjusting for age, gender, ethnicity, axial length, hypertension, glycated haemoglobin, body mass index, total cholesterol and diabetes duration, eyes with DR had thicker macula (245.44 µm vs 243.04 µm, P=0.03) and outer retina (124.26 µm vs 123.08 µm, P=0.01) than eyes without DR. When stratified by DR severity, thicker macula (250.24 µm vs 242.88 µm, P=0.011) and outer retina (126.4 µm vs 123.0 μm, P=0.006) were observed in eyes with moderate or worse, but not minimal or mild DR, compared with eyes without DR.
CONCLUSIONS:

Even in the absence of macular oedema, eyes with DR, particularly those with more severe DR, had thicker macular and outer retinal layers than eyes without DR.
All Author(s) ListDai W, Tham YC, Cheung N, Yasuda M, Tan NYQ, Cheung CY, Wang JJ, Mitchell P, Sabanayagam C, Wong TY, Cheng CY
Journal nameBritish Journal of Ophthalmology
Year2018
Month8
Volume Number102
Issue Number8
PublisherBMJ Publishing Group
Pages1072 - 1076
ISSN0007-1161
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesOphthalmology;Ophthalmology

Last updated on 2020-26-03 at 00:21