New Parameter for Predicting the Postoperative IOL Position: Preoperative Lens Equator Depth measured By Three-Dimentional Anterior Segment Optical Coherence Tomography

Autor: Geunyoung Yoon, C.-K. Joo, K.Y. Hwang
Rok vydání: 2015
Předmět:
Zdroj: Acta Ophthalmologica. 93
ISSN: 1755-375X
DOI: 10.1111/j.1755-3768.2015.0702
Popis: Purpose To test the hypothesis that the preoperative crystalline lens equator depth (pre-LED) measured by three-dimensional anterior segment optical coherence tomography (OCT) is an effective predictor of the postoperative anterior chamber depth (post-ACD). Methods Thirty-nine eyes that underwent phacoemulsification and implantation of a one-piece, plate-haptic intraocular lens between December 2013 and June 2014 were examined to develop the new algorithm for predicting the post-ACD. The pre-LED was defined as the depth from the back surface of central cornea to the line connecting the intersecting points between the anterior and posterior capsule intraoperatively using 3-D OCT in Catalys (Abbott Medical Optics). The post-ACD was measured by Pentacam (Oculus) in each case at 2 months postoperatively and was analyzed by multiple linear regression for covariance with preoperatively defined variables including the pre-LED, lens thickness, lens vaulting measured by the OCT and the preoperative ACD (pre-ACD) measured by the OCT and Pentacam. Results The mean pre-ACD, pre-LED, AL, lens thickness and lens vaulting was 2.74 ± 0.50 mm (range, 1.75–3.36); 4.14 ± 0.35 mm (range, 3.36–5.91); 23.97 ± 1.37 mm (range, 21.89–27.63), 4.23 ± 0.46 mm (range, 3.01–5.12) and 1.42 ± 0.27 mm (range, 0.82–1.89). Single regression analysis showed significant correlations between the post-ACD and pre-LED, R2 = 0.468, P
Databáze: OpenAIRE
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