Negative dysphotopsia after intraocular lens implantation irrespective of design and material.

We report 3 cases of negative dysphotopsia in patients who had implantation of 1 intraocular lens (IOL) type in 1 eye and another IOL type in the fellow eye. A male patient (aged 58 years) received an SA60AT AcrySof hydrophobic acrylic IOL (Alcon) in his left eye (OS). He noticed a temporal dark shadow. Three months later, he received a Tecnis Z9001 silicone aspheric optic IOL (Pfizer) in his right eye (OD). He noticed a temporal dark shadow OD almost identical to the shadow OS. Another male patient (aged 58 years) received an AcrySof MA60AC IOL (Alcon) OS and subsequently a PhacoFlex SI-40NB silicone IOL (AMO) OD. He experienced temporal dark shadows in each eye. A female patient (aged 64 years) received an SA60AT IOL OD and subsequently a Sensar hydrophobic acrylic AR40e (AMO) OS, noticing dark shadows in both eyes. Although all 3 patients tolerated the shadows well, they were interested in their etiology and wanted reassurance that the symptoms would not progress.