Setting New Standards In LASIK & Cataract Care


VIP LASIK Consultation and General Appointment Inquiries

At Maryland Vision Institute, (formerly Bergman Eye Center) leading eye surgeons Augustus ‘Gus’ Stern, MD and Sidney Chang, MD are helping set new standards in the field of vision correction. From our advanced Wavelight EX500 Excimer Laser for LASIK – to our exciting LenSx Laser Cataract technology – Maryland Vision Institute has become the clear choice for patients of all ages who want to enjoy a lifetime of the best possible vision.

Wavelight LASIK: The Next Generation

Our pioneering efforts include being the first and only center in the region to offer LASIK patients the safety, precision and accuracy of the new Wavelight EX500 Excimer Laser. This advanced technology is helping set a new standard in LASIK laser vision correction. Offering ‘Perfect Pulse’ laser technology and treatment times averaging 10 seconds or less, the wait for the next generation in LASIK is over.

Announcing LenSx Laser Cataract Surgery

We are proud to combine our EX500 Excimer Laser technology with our LenSx Laser Cataract technology, which is helping reduce cataract patient fears and anxiety and increase the precision and accuracy of cataract surgery.

As one of Western Maryland’s leading eye care providers, we have been providing comprehensive eye care and surgery for over 20 years. We are committed to providing you with eye care and services that are unparalleled in excellence and compassion in a friendly and comfortable environment. We understand the importance of excellent vision care and the positive impact it can have on your life.


Cross-Linking Treatment for Keratoconus

Corneal Collagen Cross-Linking is a proven technique now being performed by eye surgeon Sidney Chang, MD at Maryland Vision Institute to strengthen and stabilize the cornea in patients with keratoconus, a common disease where the cornea (front clear window of the eye) starts to thin and weaken, causing an irregularly (or conical) shape. Instead of keeping its normal round shape, the corneas of patients with keratoconus can bulge forward into the shape of a cone, causing poor vision and high levels of astigmatism.

Dr. Chang performs the Cross-Linking procedure by administering riboflavin (vitamin B2) eye drops and UVA light in pre-determined areas on the front layers of the cornea. Although successfully performed in clinical trials for well over a decade, the riboflavin and UVA light source that are used for Cross-Linking are investigational in the United States.The purpose of Cross-Linking is to prevent continued deterioration of vision from keratoconus and to potentially improve vision. Patients will typically require a minimum eyeglass prescription or can often be fit with a more standard contact lenses. In some Cross-Linking cases, patients have successfully undergone laser vision correction once their corneas have been stabilized and strengthened.

Cross-Linking is a technique that was first used in 1998 to treat patients with keratoconus, which occurs in approximately 1 in 750 Americans. Patients with keratoconus considering LASIK laser vision correction – or any other type of refractive surgery procedure – should not proceed until being thoroughly evaluated by a surgeon trained in the Cross-Linking procedure.

Oftentimes, keratoconus goes undiagnosed in younger patients because many eye doctors do not have the advanced imaging technology to diagnose the disease. Many patients first require glasses and then contact lenses. Eventually, contact lens wear becomes difficult because of the conical shape of the cornea. When left untreated, keratoconus can progress to a severe level where a corneal transplant may be required.

At Maryland Vision Institute, Dr. Chang performs Cross-Linking as an outpatient procedure in our office using only numbing eye drops and a mild sedative. Patients rest in a reclining position and are asked to concentrate on a soft blue light during the treatment. The epithelium (a protective thin layer of clear, protective tissue covering the cornea) is gently removed for the Cross-Linking procedure. Next, vitamin eye drops (riboflavin) are used in the eye and while patients concentrate on a special blue (ultraviolet) light during their brief procedure. Special numbing eye drops are used during the procedure and patients report little to no discomfort.

If you or someone you know has been diagnosed with keratoconus, please contact Maryland Vision Institute today at 301-791-0888.