• Alexandra Pierru, Michel Carles, Pierre Gastaud, and Stéphanie Baillif.
• Centre Hospitalier National d'Ophtalmologie des Quinze-Vingts, Paris, France Department of Ophthalmology, Saint Roch University Hospital, Nice, France.
• Invest. Ophthalmol. Vis. Sci. 2014 Jul 22; 55 (8): 4967-74.

PurposeTo compare subfoveal choroidal thickness (SFCT) before and after uneventful cataract surgery using enhanced depth imaging optical coherence tomography (EDI-OCT).MethodsA prospective study was conducted on 115 eyes of 95 patients who had phacoemulsification. Measurements of SFCT were performed preoperatively, 1 day (D1), 7 days (D7), 1 month (M1), and 3 months (M3) after surgery using the EDI-OCT technique. Central retinal thickness (CRT) was measured before surgery and at M1 and M3.ResultsThe 95 patients had a mean age of 76 ± 8.3 years. The mean SFCT at baseline was 224 ± 75 μm. It showed a negative correlation with age and axial length (P = 0.03). The SFCT significantly increased after surgery with a mean value of 232 ± 76 μm at D1 (P < 0.001), 237 ± 78 μm at M1 (P < 0.001), and 232 ± 76 μm at M3 (P < 0.001). The mean CRT increased from 234 ± 48 μm at baseline to 248 ± 48 μm at M1 (P = 0.005), and 252 ± 81 μm at M3 (P = 0.001). Three (2.6%) patients developed a pseudophakic cystoid macular edema (PCME). The greatest progression of SFCT after phacoemulsification was observed for these patients. It preceded the occurrence of pseudophakic cystoid macular edema (PCME) by 1 month.ConclusionsMean SFCT increased after cataract surgery. The changes in baseline SFCT were greater in PCME patients and preceded the increase in CRT.Copyright 2014 The Association for Research in Vision and Ophthalmology, Inc.

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