Our Physicians


We are honored to introduce you to our team of dedicated and skilled ophthalmologists and optometrists. Each of our physicians brings a wealth of experience, a passion for eye health, and a commitment to providing personalized care.

Our Ophthalmologists

Dr. Joel M. Corwin, MD

Retina-Vitreous Specialists 

Joel M. Corwin, M.D. received his M.D. and ScB. degrees from Brown University. He completed an internship at Cedars-Sinai Medical Center, a residency in ophthalmology at Tufts-New England Medical Center, and a fellowship in retina-vitreous at Retina Associates, where he led a diabetic retinopathy vitrectomy study.

Dr. Vladislav Bekerman, MD

Comprehensive Ophthalmology

Dr. Vladislav P. Bekerman is a comprehensive ophthalmologist trained in diagnosing and managing all aspects of adolescent and adult eye care. Dr. Bekerman specializes in cataract surgery…

Dr. Roy T. Butera, MD

Comprehensive Ophthalmology

Dr. Roy Butera is a board-certified ophthalmologist specializing in comprehensive care, with a special interest in cataract surgery and intraocular lens implants. Dr. Butera practices in Thousand Oaks and provides a full spectrum of ophthalmic services…

Dr. Steven Carter, MD

Comprehensive Ophthalmology

Steven L. Carter, M.D. practices comprehensive ophthalmology, treating a wide variety of ocular diseases, both medically and surgically. He takes pride in providing the highest level of compassionate care to all his patients.

Dr. Alexander de Castro-Abeger, MD

Pediatric Ophthalmology & Strabismus

Dr. de Castro-Abeger (de Castro for short) is a Board-Certified Ophthalmologist with the American Board of Ophthalmology. He sub-specializes in pediatric ophthalmology and adult strabismus…

Dr. John Davidson, MD

Cataract and Refractive Surgery

John Davidson, MD specializes in tailoring your vision plan to accommodate your specific visual needs in order to provide you with optimal vision for life that maximizes your freedom from glasses and contact lenses.

Dr. John P. Fang, MD

Cornea Specialists

Dr. John Fang earned his medical degree from Vanderbilt University, after receiving Bachelor of Science degrees in both Biomedical Engineering and Chemical Engineering from Johns Hopkins University…

Dr. George Hoffman, MD

Comprehensive Ophthalmology

George S. Hoffman, M.D. is a Board-Certified ophthalmologist specializing in comprehensive ophthalmology and glaucoma management. Recognized for his wide-ranging ocular expertise, surgical experience…

Dr. Devin Hymas, MD

Comprehensive Ophthalmology

Dr. Devin Hymas is a board-certified ophthalmologist practicing at Lynn Eye Medical Group since 2001. At Lynn Eye, Dr. Hymas provides comprehensive ophthalmology services for adults and children over the age of eight…

Dr. Leon G. Partamian, MD

Glaucoma Specialist

Leon G. Partamian, M.D. is a Glaucoma subspecialist, with two separate Glaucoma Fellowships. He graduated Medical School at American University of Beirut, completed his Residency at the University of Chicago in 1981…

Dr. Noelene Pang, MD

Ophthalmic Plastic and Reconstructive Surgery 

A native Southern Californian, Dr. Pang received her Medical Doctorate from Loma Linda University School of Medicine, where she was recognized for her contributions to medical education with the Merck Award for Leadership.

Dr. Roberto Roizenblatt, MD

Retina-Vitreous Specialist

Dr. Roberto Roizenblatt received his medical degree from the University of Sao Paulo in Brazil. He went on to complete an internship in Internal Medicine at Jacobi Medical Center in New York…

Dr. Karyn Teel, MD

Retina-Vitreous Specialist

Karyn Teel, M.D. is a medical and surgical retina specialist, treating such conditions as macular degeneration, diabetic retinopathy, retinal tears and detachments, macular hole and macular pucker…

Dr. William L. Trotter, MD

Comprehensive Ophthalmology

William L. Trotter, M.D. is trained in general comprehensive ophthalmology with added expertise in cataract and refractive surgery. He is board-certified by the American Board of Ophthalmology, and is a Fellow of the American Academy of Ophthalmology…

Our Optometrists

Michael B. Boggs, Jr., OD

Comprehensive Optometry

Dr. Boggs was one of the first Optometrist in Ventura County authorized to treat glaucoma. He attended the University of California, Berkeley as an undergraduate, and continued on…

Mark Brunette, OD

Comprehensive Optometry

Dr. Brunette graduated from the Southern California College of Optometry in 1988. He joined Miramar Eye Specialists Medical Group in 1988, co-managing patients…

Yara Chiha, OD

Comprehensive Optometry

Dr. Yara Chiha graduated from University of Southern California with a B.S. in Biology. She then received her Doctor of Optometry Degree in 2022 from Western University…

Stephen Langsford, OD

Comprehensive Optometry

Dr. Stephen Langsford has practiced in the Ventura and Santa Barbara area since 1996, including being part of the Miramar/NVISION family since 2001. He holds a Bachelor of Science degree in Visual Science…

Doanh “Pye” Nguyen, OD

Comprehensive Optometry

Dr. Nguyen graduated from University of California Los Angeles with a B.S. in Microbiology, Immunology, and Molecular Genetics. She then received her Doctor of Optometry from Western University of Health Sciences with Beta Sigma Kappa Honors.

Tunghi T. Nguyen, OD

Comprehensive Optometry

Dr. Nguyen earned her B.S. in Biochemistry and Molecular Biology at the University of California San Diego in 2001. Later she received her degree in Doctor of Optometry from New England College of Optometry, in Boston, Massachusetts.

John Ora, OD

Comprehensive Optometry

John Ora, O.D. completed his Bachelor’s degree in Public Health Sciences at the University of California, Irvine, and earned his Doctorate in Optometry at Southern California College of Optometry.

Pegah Raven, OD

Comprehensive Optometry

Dr. Raven graduated from University of Houston with a B.S. in Biology. She then received her Doctor of Optometry Degree in 2010 from Southern CA. College of Optometry with emphasis…

Terry Yu, OD

Comprehensive Optometry

Dr. Yu graduated from the University of California Berkeley with a B.A. in Integrative Biology. She then received her Doctor of Optometry from Western University of Health Sciences where she graduated…