Find a Specialist
- Ophthalmology

Dr. Mahmood El-Gasim
Uveitis Specialist
Phoenix, AZDr. Mahmood El-Gasim is a board-certified retina specialist who diagnoses and treats the full spectrum of retinal and vitreous disease. His care emphasizes precision, long-term partnerships, and proven therapies for conditions such as macular degeneration, diabetic retinopathy, retinal vein occlusion, and retinal detachment. Patients value his calm, patient-first approach and clear explanations of imaging, treatments, and recovery. Dr. El-Gasim graduated magna cum laude from Duke University and earned his medical degree from the Johns Hopkins University School of Medicine. He completed ophthalmology residency at the New York Eye and Ear Infirmary, where he served as Chief Resident, followed by a fellowship in retina and uveitis at London’s Moorfields Eye Hospital. He is certified by the American Board of Ophthalmology and has received recognition for clinical excellence and research contributions.
- Ophthalmology

Dr. Alexander Shusko
Uveitis Specialist
Scottsdale, AZDr. Alexander R. Shusko is an ophthalmologist with focused expertise in uveitis and ocular inflammatory disease at Mayo Clinic in Phoenix, Arizona. He evaluates and treats inflammatory eye disorders that may be isolated to the eye or associated with systemic autoimmune or infectious conditions. In addition to clinical care, Dr. Shusko studies challenging entities such as birdshot chorioretinopathy and coccidioidomycosis-related uveitis, aiming to improve diagnostic precision and long-term visual outcomes. He also provides cataract evaluation and surgery when lens opacities affect vision or limit inflammation management. Dr. Shusko earned his MD from Creighton University School of Medicine and completed ophthalmology residency at Nassau University Medical Center, where he served as chief resident. He pursued fellowship training in Uveitis and Ocular Inflammatory Disease at the Jules Stein Eye Institute (UCLA). Patients value his methodical approach, collaborative care with rheumatology and infectious disease colleagues, and clear explanations tailored to each patient’s goals and lifestyle.
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