California ophthalmology expert witnesses provide medical opinions on eye care standards, diagnosis, and treatment outcomes. Many are board-certified ophthalmologists and subspecialists in retina, glaucoma, cornea, or oculoplastics from academic centers like UCLA Health and UCSF. They assess care delivered across California’s high-volume surgical practices and diverse patient populations. Common reviews address cataract surgery complications, delayed retinal detachment diagnosis, glaucoma management, and vision loss causation.