Ralph
G. Berkeley, M.D.
Ralph G. Berkeley, M.D., is included in the prestigious list of top surgeons nationwide in refractive and cataract surgery. Dr. Berkeley has been honored by his peers as one of the “Best Doctors in America.” Board certified by the American Board of Ophthalmology since 1961, Dr. Berkeley is recognized as a pioneer in refractive surgery. He began performing refractive surgery in 1979 and has performed many thousands of procedures.
Dr. Berkeley is also among a group of clinical investigators who were selected to be involved in the approval process for the Excimer laser, including LASIK-Laser Vision Correction. Dr. Berkeley continues to be involved in current clinical research for advanced laser procedures including the investigation of an intraocular lens implant designed for the correction of moderate to high hyperopia (farsightedness).
A native Texan, Dr. Berkeley received his medical degree from Baylor University College of Medicine. After an internship at Houston’s Hermann Hospital, Dr. Berkeley served as a flight surgeon in the U.S. Air Force and completed his residency in ophthalmology at Presbyterian Hospital in New York. He served as Chief of Staff for Twelve Oaks Hospital and is a member of the medical staff of Park Plaza Hospital. Dr. Berkeley is a former president of the American Board of Eye Surgery and a Fellow of the American College of Surgeons (F.A.C.S.). He is also a member of the American Academy of Ophthalmology and the Texas Medical Association. In addition, he has been invited through the years to speak at numerous national and international medical conferences.
Michael B. Caplan, M.D.
Michael B. Caplan, M.D., is a distinguished member of the Houston ophthalmology community and a founding partner of Berkeley Eye Center. Dr. Caplan is board certified in ophthalmology and specializes in the latest technology in refractive surgery and no-stitch cataract surgery. In addition, he is a fellowship-trained glaucoma specialist. Dr. Caplan is known locally and nationally as a leading ophthalmic surgeon and LASIK expert. He has performed over 15,000 refractive procedures and has been recognized by VISX as one of the top 100 refractive surgeons in the country.
Dr. Caplan offers the most advanced options for refractive surgery candidates, including procedures such as conductive keratoplasty and refractive lensectomies. He has served as an investigator in several nationwide studies evaluating implantable contact lenses, new technologies for cataract surgery, and multi-focal lens implants. He is a founder and Medical Director of Houston’s Caplan Surgery Center, which provides state-of-the-art outpatient eye surgery in a caring, convenient setting for patients and their families.
As former president of the Houston Ophthalmological Society, Dr. Caplan has been responsible for city-wide leadership and continuing education for ophthalmologists in the greater Houston area. He has served on the society’s Executive Committee for eight years. Dr. Caplan is also an active member of the American Academy of Ophthalmology, the American Society of Cataract and Refractive Surgery, the International Society of Refractive Surgery, and the Society for Excellence in Eye Care. Dr. Caplan has traveled internationally on mission trips to remote areas to provide eye care to those in need.
A long-time Texan, Dr. Caplan is a Phi Beta Kappa honor graduate of The University of Texas at Austin. After graduating from Baylor College of Medicine in Houston, Dr. Caplan completed an ophthalmology residency at the University of Texas Southwestern Medical School in Dallas and a prestigious glaucoma fellowship at Emory University School of Medicine in Atlanta, Georgia.
Brent R. McQueen, M.D.
Brent R. McQueen, M.D., is a founding partner of Berkeley Eye Center. He is certified by the American Board of Eye Surgery in LASIK and by the American Board of Ophthalmology. Dr. McQueen is a Fellow of the American College of Surgeons (F.A.C.S.) and a member of the American Academy of Ophthalmology, American Society of Cataract and Refractive Surgery, International Society of Refractive Surgery, and the Texas Medical Association.
Dr. McQueen has performed thousands of refractive procedures and has a special interest in bringing “cutting-edge” technology to the patients of Berkeley Eye Center. In addition to refractive surgery, he performs cataract, glaucoma, and corneal transplant surgeries. Dr. McQueen also performs oculoplastic surgeries on eyelid abnormalities.
A native Texan who grew up in the Humble/Kingwood area, Dr. McQueen’s interest in ophthalmology began when he attended Texas A&M University where he was recognized as the Outstanding Student in the College of Science. He earned early acceptance into the University of Texas Southwestern Medical School where he received a medical degree. He completed an internship in Internal Medicine at St. Paul Medical Center in Dallas. His four-year ophthalmology residency was completed at the LSU Eye Center in New Orleans where many of the initial studies using the Excimer laser in PRK and LASIK were performed. Dr. McQueen was honored to have served as the Chief Resident during his last year of residency. He practiced in Lakeland, Florida, prior to being offered the opportunity to practice in Houston in 1999.
Dr. McQueen and his wife, Mindy, are the parents of three daughters. He is active in his local church and has served in multiple medical missions to Mexico and Africa. Dr. McQueen is a member of Rotary International and has served as President of the Humble Rotary Club.
Erin A. Doe , M.D.
Erin Andrew Doe, M.D., is a member of the American Academy of Ophthalmology, the American Society of Cataract and Refractive Surgery, as well as the American Glaucoma Society. A Phi Kappa Phi and distinguished cadet, Dr. Doe received his Bachelors of Science in Chemistry from the United States Military Academy at West Point. After graduating from Duke University School of Medicine, he completed an Internship and Residency in Ophthalmology at Brooke Army Medical Center in San Antonio. Dr. Doe served as a Flight Surgeon with the U.S. Army before completing a Glaucoma fellowship with the Bascom Palmer Eye Institute in Miami, Florida. He served as the Assistant Chief and Director of Clinical Operations for the Ophthalmology Department at Brooke Army for 4 years.
Dr. Doe has performed thousands of cataract, glaucoma and laser procedures and has spent 6 years full time teaching Ophthalmology residents. He was named “Teacher of the Year” in 2002 for his instruction of ophthalmology residents at Brooke Army and Wilford Hall Medical Centers. He has published numerous articles in leading Ophthalmology journals.
In addition, Dr. Doe received the Robert E. Lee award from West Point for Mathematics and was a semifinalist for the Rhodes Scholarship in 1987. Dr. Doe has received three Meritorious Service Metals, two Army Commendation medals and the Expert Field Medical Badge. Dr. Doe has led or participated in some eight Humanitarian Missions in El Salvador, Honduras and Mexico from 1997 to 2004. Dr. Doe and his wife, Paulene, are the parents of four sons and one daughter.
Regina Sun , M.D.
Berkeley Eye Center is proud to welcome Fellowship-trained Cornea Specialist Regina Sun, MD to our medical staff. Dr. Sun is a native Houstonian who grew up in nearby Katy and is now pleased to once again call Houston home.
Following graduation at the top of her class at Katy Taylor High School, Dr. Sun attended college and medical school at Northwestern University in Chicago. She then completed her residency in ophthalmology at the prestigious Baylor College of Medicine in Houston and completed her Cornea and Refractive surgery fellowship training at the University of Minnesota Medical School. There she gained experience in complex cataract surgery, modern corneal transplantation techniques and wavefront-guided refractive laser surgery.
She has also authored textbook chapters and research articles for peer-reviewed journals, such as American Journal of Ophthalmology, Archives of Ophthalmology, British Journal of Ophthalmology and Ophthalmology. As a senior resident, she was a recipient of a Goar Award, given each year for excellence in resident research. She is an active member of the American Academy of Ophthalmology, the American Society of Cataract and Refractive Surgery and the Houston Ophthalmological Society.
Her duties at Berkeley Eye Center, Pearland, will include the comprehensive ophthalmic care of patients with cataract, glaucoma and diabetes. In addition, Dr. Sun has interests in dry eye, minimally invasive corneal transplants and refractive surgery such as LASIK. Dr. Sun was also privileged to have participated in international mission trips including working with a local ophthalmologist in rural China.
She is also proficient in Mandarin and Spanish and her hobbies include biking, gardening and photography.
To schedule an appointment, please call our office at 713-526-3937 or schedule online ».

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