Related Experiment Video
Updated: Aug 21, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile
Published on: September 20, 2024
Refractive changes after posterior segment surgery
J Bradley Randleman1, Susanne M Hewitt, R Doyle Stulting
1Department of Ophthalmology, Emory University, 1365B Clifton Road NE, Suite 4500, Atlanta, GA 30322, USA. Jrandle@emory.edu
Abstract:
Retinal surgery can induce significant refractive errors. These errors include spherical changes caused by alterations in axial length after scleral buckle placement, astigmatic changes induced by a scleral buckle or pars plana vitrectomy, and focal alterations in corneal curvature that can significantly limit postoperative visual acuity. The adjunctive use of silicone oil can impose alterations directly, by the oil's interaction with the other refractive elements of the eye, and indirectly, through its effects on intraocular lens power calculations for subsequent cataract surgery.
Related Concept Videos
Focusing of Light in the Eye
Angle Closure Glaucoma: Treatment