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Measurement of subfoveal choroidal thickness before and after cataract surgery using enhanced depth imaging optical coherence tomography
Author(s) -
PIERRU A,
BAILLIFGOSTOLI S,
GASTAUD P
Publication year - 2012
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2012.4726.x
Subject(s) - medicine , cataract surgery , ophthalmology , optical coherence tomography , choroid , phacoemulsification , diabetic retinopathy , prospective cohort study , surgery , diabetes mellitus , visual acuity , retina , optics , physics , endocrinology
Purpose To compare subfoveal choroidal thickness (SFCT) before and after cataract surgery using enhanced depth imaging optical coherence tomography (EDI OCT) Methods Cross‐sectional observational prospective study. Spectral‐domain EDI OCT was performed with a Heidelberg Spectralis HRA+OCT (Heidelberg Engineering, Heidelberg, Germany) using a standardized protocol. SFCT of 67 patients was measured manually from the posterior edge of the retinal pigment epithelium to the choroid/sclera junction before surgery, 1 day, 7 days, 1 month, 3 month after. Choroidal thicknesses were independantly assessed by two masked graders. Statistical analysis was performed to evaluate variations of choroidal thickness before and after cataract surgery. Results Eighty four eyes of 67 patients who had cataract surgery were included. Mean SFCT ± SD was 215,9 ± 69,4 μm before surgery, 213,3 ± 67,3 μm at Day 1, 221,9 ± 67,8 μm at Day 7, 226,5 ± 68,9 μm at 1 month and 230 ± 62,2 μm at 3 months. Mean SFCT increased significantly between before and 3 months after surgery (p<0,04). For diabetic patients mean SFCT increased in the same proportion as in general population but later (Day 7 versus Day 30). No significative difference was observed between group with Diabetic Retinopathy (DR) and group without. For the only patient who developed an Irvine Gass Syndrom, SFCT increased. Conclusion Mean SFCT seems to increase after phacoemulsification. EDI OCT can be used to evaluate choroidal changes after cataract surgery in diabetic patients, and to detect patients who would develop an Irvine Gass syndrome.