Measurement of Subfoveal Choroidal Thickness After Cataract Surgery in Enhanced Depth Imaging Optical Coherence Tomography

作者：Pierru Alexandra; Carles Michel; Gastaud Pierre; Baillif Stephanie^*

来源：Investigative Ophthalmology & Visual Science, 2014, 55(8): 4967-4974.

DOI：10.1167/iovs.14-14172

• pseudophakic cystoid macular edema
• EDI-OCT
• subfoveal choroidal thickness
• central retinal thickness

PURPOSE. To compare subfoveal choroidal thickness (SFCT) before and after uneventful cataract surgery using enhanced depth imaging optical coherence tomography (EDI-OCT).
METHODS. A 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.
RESULTS. The 95 patients had a mean age of 76 +/- 8.3 years. The mean SFCT at baseline was 224 +/- 75 mu m. 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 mu m at D1 (P < 0.001), 237 +/- 78 mu m at M1 (P < 0.001), and 232 +/- 76 mu m at M3 (P < 0.001). The mean CRT increased from 234 +/- 48 mu m at baseline to 248 +/- 48 mu m at M1 (P = 0.005), and 252 +/- 81 mu m 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.
CONCLUSIONS. Mean SFCT increased after cataract surgery. The changes in baseline SFCT were greater in PCME patients and preceded the increase in CRT.

• 出版日期2014-8