Technique to alter field of view during vitrectomy with phacoemulsification and aspiration in gas-filled eye

To describe a method to alter the angular field of view of the fundus in gas-filled eyes during pars plana vitrectomy and phacoemulsification with aspiration and intraocular lens implantation. Description of a new surgical method. The amount of viscoelastic material injected into the capsule is regulated, altering posterior capsule curvature. The visual field can be varied from 5 to 108 degrees. Surgery on more than 300 eyes with rhegmatogenous retinal detachment and cataract using this technique has been successful with no complications. This method effectively controls the field of view in gas-filled eyes.