Massachusetts Eye Research and Surgery Institution (MERSI) is a leading ophthalmology practice providing comprehensive, patient-focused eye care in Waltham, Massachusetts. Our fellowship-trained physicians diagnose and treat a wide range of eye conditions, including cataracts, glaucoma, macular degeneration, dry eye, uveitis, diabetic eye disease, and more, using advanced technology and personalized treatment plans. With same-day testing, on-site infusion and pathology labs, and a focus on comfort and service, MERSI offers everything from routine eye exams to complex surgical care in one convenient location. Our mission is to help patients achieve better vision and long-term eye health through compassionate, world-class care.