Business Details
50+ Years
experience
Emergency
services
Your Trusted Eye Care Partner in Waltham, MA
At Klein Thomas R (MERSI), we prioritize patient-centered care through a combination of advanced medical expertise and compassionate service. Founded over 50 years ago by renowned ophthalmologist C. Stephen Foster, our institution has established itself as a leader in diagnosing and treating complex eye conditions. Our team of fellowship-trained specialists brings decades of collective experience in uveitis, retinal diseases, corneal disorders, and glaucoma, utilizing state-of-the-art technology for precise diagnostics and innovative treatments. We maintain a fully equipped eye care center with immediate access to diagnostic testing, onsite pathology labs, and advanced surgical suites. Our commitment to education and research ensures patients benefit from cutting-edge therapies, including FDA-authorized treatments like Valeda for dry AMD.With board-certified physicians recognized globally for their contributions to ocular immunology, we combine clinical excellence with personalized care. Our facility supports both routine and complex cases, offering infusion therapy, corneal transplants, and premium cataract services with lifestyle lenses. We maintain rigorous standards through CLIA-certified laboratory operations and participation in clinical trials that advance ophthalmic innovation. Our approach emphasizes clear communication, timely appointments for urgent cases, and comprehensive follow-up care. This dedication to excellence has earned us recognition in professional circles and consistent praise from patients whose lives we've helped transform through improved vision and health.
Services
Cataract Surgery
Uveitis Treatment
Retinal Detachment Repair
Glaucoma Management
Corneal Transplants
Infusion Therapy
Diagnostic Testing
Premium IOLs
Laser Surgery
Clinical Trials
Details
- Year established: 1973
Highlights and features
- We offer immediate access to diagnostic testing appointments
- Our team consists of fellowship-trained ocular immunology experts
- We pioneered FDA-authorized Valeda light therapy for dry AMD
- Our surgeons perform complex procedures like keratoprosthesis implants
- We maintain a CLIA-certified diagnostic immunopathology laboratory
What people say
Outstanding expertise
Compassionate care
Successful treatments
Thorough examinations
Personalized attention
Services
Cataract Surgery
We perform advanced cataract removal with premium intraocular lens implants, including multifocal and toric lenses. Our surgeons use femtosecond laser technology for precise incisions and customized treatment plans. Patients receive comprehensive pre-operative assessments and post-operative care to optimize visual outcomes.
Uveitis Treatment
Our specialists manage anterior, intermediate, posterior, and panuveitis with tailored immunosuppressive therapies. We offer diagnostic vitrectomy, intraocular injections, and systemic treatment management. The team combines decades of experience with participation in clinical trials for novel anti-inflammatory agents.
Retinal Detachment Repair
We treat complex retinal detachments using pars plana vitrectomy, scleral buckling, and pneumatic retinopexy. Advanced imaging guides surgical planning while our ambulatory surgical center ensures efficient, high-quality care. Post-operative monitoring focuses on anatomical reattachment and visual recovery.
Infusion Therapy
Our dedicated infusion suite administers biologics like Humira, Remicade, and Rituxan for ocular inflammatory diseases. Certified nurses provide pre-medication management and monitor patients during treatments. We assist with insurance authorizations for specialty medications.
Diagnostic Testing
We offer comprehensive diagnostics including OCT imaging, fluorescein angiography, and electrophysiological testing. Our CLIA-certified lab processes ocular tissue samples for immunopathology analysis. Testing results guide treatment decisions and disease monitoring.
People
Stephen D. Anesi
Partner & Co-President
Dr. Anesi specializes in uveitis and ocular immunology with expertise in managing complex autoimmune eye diseases. He provides personalized treatment plans and performs advanced surgical interventions while maintaining active involvement in patient education initiatives.
Peter Y. Chang
Partner & Co-President
Dr. Chang focuses on retinal diseases and vitreoretinal surgery, with particular experience in macular degeneration and diabetic eye disease. He pioneered Susvimo implant procedures in Massachusetts and emphasizes patient-centered communication during care.
Carl S. Wilkins
Associate
Dr. Wilkins combines vitreoretinal surgery expertise with ocular immunology specialization. He manages complex retinal pathologies while contributing to clinical research that advances treatment protocols for inflammatory eye diseases.
Peter L. Lou
Associate
Dr. Lou specializes in corneal diseases and anterior segment surgery. His practice includes complex cataract cases and corneal transplantation procedures. Patients consistently praise his thorough examinations and compassionate approach to care.
C. Stephen Foster
Founder
Dr. Foster established MERSI as a global leader in uveitis research and treatment. With over 50 years of experience, he developed groundbreaking approaches to ocular immunology before retiring from active practice in 2023.
Questions
What eye conditions does MERSI specialize in treating?
We specialize in complex ocular conditions including uveitis, retinal detachment, macular degeneration, glaucoma, and corneal diseases through advanced diagnostic and treatment approaches.
Do you offer emergency eye care services?
Yes, we accept emergency consultations for urgent eye conditions with after-hours paging available for existing patients requiring immediate attention.
Are there specialized diagnostic tests available onsite?
Our CLIA-certified lab provides immunopathology analysis while advanced imaging includes OCT, fluorescein angiography, and electrophysiological testing for comprehensive diagnosis.
How can I schedule an appointment?
Call 781-891-6377 or 866-353-6377 for Waltham appointments. We prioritize urgent cases with same-day testing availability and coordinate care with referring physicians.
What surgical options are available?
We perform cataract surgery with premium lenses, retinal detachment repair, corneal transplants, glaucoma procedures, and vitreoretinal surgeries using state-of-the-art techniques.
