Prediction of Residual Astigmatism After Cataract Surgery Using Swept Source Fourier Domain Optical Coherence Tomography
Purpose : To compare corneal measurements obtained by a swept source fourier domain OCT (CASIA SS-1000), an autokeratometer (Haag-Streit Lenstar), a hybrid topographer (Tomey TMS-5), a Placido topographer (Tomey TMS-5 in Placido mode) and a Scheimpflug tomographer (Oculus Pentacam) to manifest subjective refraction. Methods : One hundred and four pseudophacic patients with non-toric IOLs were measured at least 6 months after surgery . Corneal astigmatism as measured on the anterior corneal surface as well as total corneal astigmatism including posterior surface data was compared to manifest refractive cylinder (cross-cylinder strategy) by computing difference vectors and correlation analysis of power vectors. Results : The OCT ...
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