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January 1986

Refractive Changes Induced by Intraocular Lens Tilt and Longitudinal Displacement

Author Affiliations

From the School of Optometry, University of California, Berkeley (Mr Lakshminarayanan and Drs Enoch, Raasch, and Nygaard), and the Department of Ophthalmology, University of California, San Francisco (Drs Enoch and Crawford).

Arch Ophthalmol. 1986;104(1):90-92. doi:10.1001/archopht.1986.01050130100030

• There is a tendency for the posterior chamber intraocular lens to tilt about the points of insertion. This is found clinically and in postmortem studies of eyes that have had intraocular lenses surgically implanted. One end is often located in the lens capsule and the other end is located in the ciliary sulcus. The possibility of anteroposterior displacement also exists. Using a modified Gullstrand schematic model eye, we have computed the amount of spherical and cylindrical errors that are induced due to the tilt and/or displacement of the intraocular lens. If a cylindrical error of approximately 90° from the axis of insertion (lens plus haptic loops) and/or axis of tilt is detected, further careful investigation is warranted.