Pupil decentration and iris tilting detected by Orbscan: Anatomic variations among healthy subjects and influence on outcomes of laser refractive surgeries

Some eyes with pupil decentration or tilting angle of the iris could not be detected under typical ophthalmologic examination but only with topographic examination. Attention should be paid to eyes with large pupil decentration and tilting angle of the iris because these may be risk factors for reduction of postoperative BSCVA during corneal refractive surgeries.