Dr. Ariel Chen

Ophthalmology – Cornea Specialist

Happy Valley, OR

Dr. Ariel Chen is an ophthalmologist with a focus on ocular surface, cornea, and anterior segment disease. She offers comprehensive eye care along with cataract surgery, pterygium removal, corneal transplantation, and other surgeries of the front of the eye. Dr. Chen strives to deliver patient-centered care—listening carefully, explaining every step, and coordinating with other clinicians so treatment feels seamless. A Portland native, Dr. Chen completed college at Rice University and earned her medical degree at Baylor College of Medicine. She trained in ophthalmology at the Wilmer Eye Institute at Johns Hopkins Hospital and pursued fellowship training in cornea at Wills Eye Hospital. She is delighted to be back caring for the community where she grew up.

Dr. Roma Pegany

Ophthalmology – Cornea Specialist

Portland, OR

Dr. Roma Pegany is a cornea and external disease specialist at the Casey Eye Institute. She diagnoses and treats conditions that affect the cornea and ocular surface, offering medical therapies as well as surgical options such as corneal transplantation and laser vision correction. Her clinical interests include infectious and inflammatory corneal disease, and she is committed to patient education so people understand their diagnosis and choices at every step. Dr. Pegany earned her undergraduate degree from the University of California, Berkeley and her medical degree from Georgetown University School of Medicine. She completed an ophthalmology residency at the University of North Carolina, Chapel Hill, followed by fellowship training in Cornea, External Diseases and Refractive Surgery at the Casey Eye Institute, where she received the Fellow of the Year award. She later served on the faculty at the University of California, San Francisco before returning to OHSU. Dr. Pegany values collaborative, compassionate care grounded in the latest science.

Dr. Ashlin Joye

Ophthalmology – Cornea Specialist

Portland, OR

Dr. Ashlin Joye is a cornea and external disease specialist who treats a wide range of conditions affecting the front of the eye. His clinical interests include routine and complex cataract surgery, all forms of keratoplasty, keratoprosthesis (artificial cornea), anterior segment reconstruction, and refractive surgery. He also cares for patients with complex ocular surface disease and infectious or inflammatory keratitis. Dr. Joye aims to provide clear, compassionate guidance so patients can make confident, informed decisions about their vision. Dr. Joye received his medical degree from Touro University of California. He completed ophthalmology residency at the Casey Eye Institute at Oregon Health & Science University, followed by subspecialty fellowship training in Cornea, External Disease, and Refractive Surgery at the University of California, San Francisco and the F. I. Proctor Foundation.