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January 1990

In Vivo Measurement of Posterior Chamber Intraocular Lens Decentration and Tilt

Author Affiliations

From the Department of Ophthalmology, Columbia University College of Physicians and Surgeons, and The Edward S. Harkness Eye Institute, New York City.

Arch Ophthalmol. 1990;108(1):75-79. doi:10.1001/archopht.1990.01070030081033

• We report what to our knowledge is the first extensive in vivo clinical study of intraocular lens decentration and tilt. Measurements of posterior chamber intraocular lenses, all implanted by the same surgeon in 89 eyes, showed that decentration and tilt consistently differed between right and left eyes. Lenses tended to decenter superotemporally and tilt with their superonasal edges tipped forward. Decentration magnitude relative to the cornea light reflex axis and line of sight averaged 0.64 mm, with decentration increasing slightly with increased axial length. Average tilt was 6.75°, and the average tilt-induced astigmatism was 0.27 diopter. Tilt magnitude decreased with increased axial length, as did tilt-induced astigmatism and plus sphere.