Silicone intraocular lens compression and double lens implants in diseased eyes

Purpose To assess the outcomes of double lens implants in hyperoptic eyes with associated pathology. Method Double lens implants were used in 4 eyes of 4 patients each with a different ophthalmic or neuro-ophthalmic disease. Biometry was performed in the standard contact fashion and lens power formulae used included SRKIT, Holladay and Hoffer Q. Results Average spherical equivalent refraction improved from +6.875 D to +0.38 D. Absolute average prediction error was greatest for SRKIT (2.65 D) and least for Holladay (1.73 D). Refractive surprises were influenced by the underlying disease process. One patient showed central lens compression. Conclusion Underlying disease can produce biometry errors. Structural ophthalmic or neurological disease is not a contraindication to the use of double lens implants. Double lens implants are useful to correct refractive error in the presence of underlying disease.