Massachusetts Eye Research and Surgery Institution (MERSI) is pleased to announce our second practice location at 10 Hawthorne Place in Boston, MA.  Peter L. Lou, MD and Peter. Y Chang, MD provide every patient with the best quality care and individualized treatment plans to manage their eye care needs. Conveniently located behind Massachusetts General Hospital, our practice specializes in various diseases affecting the retina, macula, and vitreous with patients of all ages.  In addition to retina care, we are also able to provide cataract evaluations as well as treating other eye conditions.

Dr. Lou or Dr. Chang are both accepting new patients. Please call (617) 523-0955 to make an appointment.

MERSI offers a comprehensive list of ophthalmic services to meet your diagnostic and therapeutic needs. Our treatments range from complex cases of uveitis and rare ocular inflammatory diseases (OID) to more general eye conditions such as cataracts, glaucoma, and dry eye syndrome.  Our main office in Waltham can be reached by calling 781-891-6377.  Visit our Services page to learn more!