Dr. Avrey Thau

Dr. Jennifer Park is a board-certified ophthalmologist and fellowship-trained cornea specialist who manages corneal disorders and cataracts using modern medical and surgical techniques. She also practices comprehensive ophthalmology and sees patients through Downstate’s faculty practice. In addition to caring for patients, she teaches and helps train future ophthalmologists. Dr. Park treats a broad range of corneal conditions, including infections, keratoconus, corneal edema, pterygium, autoimmune corneal disease, dry eye, and allergy-related eye disease. Her surgical care includes multiple forms of corneal transplantation—such as DMEK, DSAEK, DALK, and penetrating keratoplasty—as well as keratoprosthesis implantation. She also performs cataract surgery, including toric and multifocal lens implantation, and refractive surgery.

Dr. Kai B. Kang is an ophthalmologist who specializes in corneal and external diseases and cataract surgery. He cares for patients with conditions affecting the front of the eye, including corneal infections and inflammation, corneal dystrophies and degenerations, and disorders of the eyelid and conjunctiva. He focuses on clear communication so patients understand their diagnosis, treatment options, and what to expect next. As a cornea and cataract surgeon, Dr. Kang’s surgical interests include cataract surgery, corneal transplantation, pterygium surgery, and treatment of ocular surface neoplasia. He earned a B.S. with honors in biochemistry and anthropology from Washington University in St. Louis and a medical doctorate with honors from Cornell University. He completed ophthalmology residency training at the University of Illinois Eye and Ear Infirmary in Chicago.

Dr. Rachel H. Epstein is a cornea specialist who cares for patients with complex corneal disease and vision problems that may benefit from refractive surgery. She enjoys solving challenging clinical cases and building long-term relationships with patients through careful, personalized care. Her work includes evaluating corneal clarity and shape, planning procedures to improve vision, and supporting patients through recovery and long-term follow-up. Dr. Epstein earned her undergraduate degree from the University of California, Santa Barbara, completed medical school at the Chicago Medical School, and trained in ophthalmology at Rush University Medical Center. Her academic interests include endothelial keratoplasty techniques, topography-guided laser vision correction, and corneal cross-linking for corneal ectasia.