20 Piggyback Intraocular Lenses

Fuxiang Zhang, Alan Sugar, and Lisa Brothers Arbisser

Abstract

This chapter focuses on three basic issues for piggyback intraocular lenses (IOLs): indications, lens selection, and power calculation. The advantages and disadvantages of current commonly used piggyback IOLs are reviewed. The commonly used calculation methods are discussed in detail. This chapter also briefly discusses topics such as the alternative options for piggyback IOLs, relative contraindications, and enhancement principles when a refractive surprise occurs. There is also a brief discussion to introduce a logical way to consider polypseudophakia in a situation when the single IOL power is not enough in situations like high hyperopia. There is a brand new proposal for design of a 360-degree sulcus piggyback IOL.

Key words

piggyback lenses - piggyback IOL calculation - interlenticular film - IOL exchange, new design for sulcus IOLs

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