NIELSEN EYE CENTER - Key Persons


Alex Guerrero

"I have always had perfect vision. In my 40s I started to lose the ability to focus, both up close and far away. I had been wearing glasses full-time for about 5 years when I met Dr. The decision to have LASIK surgery was hard because I was concerned it might not end up well. I had many friends whose results were less than stellar. But what an amazing experience! Everyone at the Nielsen Eye Center was wonderful! My experience from start to finish was above and beyond my expectations. Distance vision was my biggest issue because when I work with my clients, I am very active and my glasses got in the way. I decided to just have a correction done for distance, so I only need reading glasses now. I would recommend anyone considering LASIK surgery to only have Dr.

Dr. George Violin

Job Titles:
  • Pioneer Cataract Surgeon and Vision Correction Expert
Dr. Violin graduated from Columbia University College of Physicians and Surgeons in 1967 and completed his ophthalmic residency at Massachusetts Eye and Ear Infirmary. With nearly a quarter-century of experience, he is a pioneer in small incision cataract and implant surgery in Massachusetts.

Dr. Helen R. Moreira

Dr. Helen Moreira, a leading LASIK and cataract surgeon at Nielsen Eye Center, is dedicated to delivering personalized eye care using cutting-edge technology. As a partner and co-owner alongside Dr. Nielsen, she brings a holistic approach to treatment, tailoring solutions to meet each patient's unique needs. With expertise in LASIK, refractive cataract surgery, glaucoma procedures, and eyelid surgeries, Dr. Moreira has successfully performed thousands of procedures, ensuring exceptional care for every patient.

Dr. Hong Ji

Job Titles:
  • Certified Optometrist
Dr. Hong Ji is a compassionate certified optometrist with expertise since 2011. Specializing in primary eye care, pediatric optometry, ocular diseases management and treatment, and contact lens fitting, including astigmatism, multifocal, and RGP lenses, Dr. Ji prioritizes quality eye care for her patients. She dedicates her undivided attention to addressing their needs with care and precision.

Dr. Lily Ng

Job Titles:
  • Certified Optometrist
Dr. Lily Ng is a certified optometrist committed to enhancing both the ocular health and visual requirements of her patients. She emphasizes the importance of patient education in effectively managing eye conditions. Dr. Lily Ng, a Quincy native and alumni of North Quincy High School, obtained her doctor of optometry degree from New England College of Optometry. During her training, she gained valuable experience at various renowned institutions including Bedford, Florida VA Hospital, East and South Boston Community Health Center, and Global Vision Rehabilitation Center in Miami. Affiliations Dr. Ng is affiliated with respected organizations including the Massachusetts Society of Optometrists, the American Optometric Association, and the American Academy of Optometry, underscoring her commitment to staying informed and connected within her field.

Dr. Shobha Topgi

Job Titles:
  • RETINA SPECIALIST and CATARACT SURGEON
Dr. Shobha Topgi, MD, a retina specialist and cataract surgeon at Nielsen Eye Center, is committed to delivering optimal visual outcomes for her patients. With a blend of technical expertise and patient-focused clinical care, she ensures the highest standard of treatment. Dr. Topgi is affiliated with esteemed organizations including the American Academy of Ophthalmology and the American Society of Retina Specialists, demonstrating her dedication to staying abreast of the latest developments in her field.

Dr. Steven A. Nielsen

Since 1991, Dr. Steven A. Nielsen has led Nielsen Eye Center with a dedication to enhancing patients' vision through cutting-edge techniques. With over 25,000 successful laser procedures, Dr. Nielsen is a renowned expert in the latest advancements in eye care surgeries. His unwavering commitment to excellence ensures undeniable improvements in vision for his patients, making Nielsen Eye Center a premier destination for vision care nationwide.

Emily Dematrest

"My experience with Nielsen Eye Center was so exceptional. The staff at NEC are amazingly patient-centered and it was one of the nicest (and certainly the easiest) medical experiences I have ever had. And now I have perfect vision! It is just fantastic to wake up and be able to see perfectly. No matter what activities my day includes, yoga, cycling, or surfing - I never have to worry about contacts or glasses. One less excuse for working out and one less barrier to staying active!"

MEET DR. KHANNA

Job Titles:
  • LEADING LASIK and CATARACT SURGEON
Dr. Khanna, a board-certified and fellowship-trained LASIK, Cataract, & Cornea surgeon at Nielsen Eye Center, specializes in advanced dry eye and external disease. Alongside her comprehensive practice, she tailors personalized treatment plans to align with each patient's vision goals. Dr. Khanna is committed to incorporating the latest technology to optimize eye care and outcomes for her patients.

Namrata Nandakumar

Dr. Nandakumar is a Board Certified Ophthalmologist specializing in vitreo-retinal surgery. Committed to delivering the highest standards of patient care, Dr. Nandakumar aims to achieve the best possible visual outcomes, preserving the precious gift of sight. Dr. Nandakumar currently serves on the faculty at the Warren Alpert Medical School of Brown University and is a staff member at the Massachusetts Eye and Ear Infirmary. She completed her research fellowship at the Schepens Eye Research Institute at the Massachusetts Eye and Ear Infirmary. Additionally, she is a member of the American Academy of Ophthalmology and holds a position as a clinical assistant professor at the Warren Alpert Medical School of Brown University.

PJ Antonik

"For 22 years I struggled with contacts… The day I decided to get LASIK was a big day and it turned out to be one of the best decisions I ever made! Thank you Dr. Morerira of Nielsen Eye Center for giving me perfect vision with no contacts!"

Rodney L. Immerman

Job Titles:
  • Certified Optometrist
Dr. Rodney Immerman, a certified Optometrist, has dedicated his practice exclusively to low vision since 1982. A graduate of the Illinois College of Optometry and a Fellow of the American Academy of Optometry, he brings over 34 years of expertise in designing low vision devices tailored for various tasks including reading, distance, occupational, and recreational activities. Dr. Immerman specializes in crafting low vision glasses for driving and computer use, as well as prescribing electronic magnification devices for reading. He collaborates with low vision occupational therapists and connects patients with relevant state agencies and organizations to optimize their functionality.