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W incision for cataract surgery.

We suggest a modification of the frown type incision for the implantation of rigid intraocular lenses: a W shaped incision. It has improved the control of astigmatism, the self sealing characteristics, needs no special requirement for suture material, has a high mechanical stability, and is easily extendible for ECCE or trabeculectomy. The advantages of the incision are substantiated in a comparative study (invers u and W configuration) in 203 eyes with a 3 months follow up.