Rosen Peter MD practices ophthalmology in Chula Vista at the Sharp Rees-Stealy Otay Ranch campus on East Palomar Street, specializing in cataract surgery, glaucoma management, and strabismus evaluation. Surgical privileges at Sharp Chula Vista Medical Center on Medical Center Drive provide operating-room access for procedures requiring hospital-grade anesthesia and post-operative monitoring. The Otay Ranch clinic's ophthalmology suite shares a floor with optometrists, certified opticians, and contact-lens technicians who handle pre-surgical workups and post-operative refractions. Diabetic retinopathy screening at the practice coordinates with vascular-health monitoring from Cardiovascular Institute of San Diego, linking retinal microvascular changes to systemic cardiovascular risk profiles. Phacoemulsification cataract extraction with intraocular lens implantation uses ultrasonic probe frequencies calibrated to nucleus density, enabling sub-2.4mm clear-corneal incisions that typically require no sutures.