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Case Reports
. 2010 Mar;36(3):497-502.
doi: 10.1016/j.jcrs.2009.07.054.

Pseudophakic eye with obliquely crossed piggyback toric intraocular lenses

Haiying Jin  1 , Il-Joo Limberger, Andreas F M Borkenstein, Angela Ehmer, Haike Guo, Gerd U Auffarth
Affiliations
Case Reports

Pseudophakic eye with obliquely crossed piggyback toric intraocular lenses

Haiying Jin et al. J Cataract Refract Surg. 2010 Mar.

Abstract

A 72-year-old man presented with high astigmatism (2.25 -5.0 x 45) induced by long-term rotation of a toric intraocular lens (IOL). Corneal astigmatism was 3.78 diopters (D). The corrected distance visual acuity (CDVA) was 20/32. Because of the risk of repositioning, a secondary toric IOL of -3.0/6.0 D especially designed for sulcus implantation was piggybacked through 3.5 mm sutureless clear-corneal incision with a cylindrical axis obliquely crossed with that of the primary IOL. Eight months postoperatively, the corneal astigmatism was 5.04 D. The CDVA was 20/25 with a refraction of 1.0 -2.5 x 70. No interlenticular opacification or significant rotation or decentration of the secondary toric IOL was observed. The refractive properties of this pseudophakic eye were analyzed using a mathematical approach. The calculated postoperative refraction was 0.84 -1.7 x 47. A piggyback toric IOL can be implanted in an obliquely crossed style that allows a secondary toric IOL to correct astigmatism induced by long-term toric IOL rotation.

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