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Corneal Associates, PC
840 Walnut Street
Suite 920
Philadelphia, PA 19107-5109

Phone: 215-928-3180
Fax: 215-928-3854

Click here for map & directions

Meet the Corneal Associates

The Corneal Associates at Wills Eye Institute are devoted to excellence in the diagnosis and treatment of cornea and external diseases of the eye. A large part of our practice is devoted to the treatment of keratoconus. We also perform cataract surgery, corneal transplants, and multifocal lens surgery, and treat dry eyes, corneal dystrophy, and other disorders and diseases of the eye.

One of our physicians also perform refractive surgery (custom LASIK, advanced surface ablation, and RK/AK) to help those seeking to improve their vision.

Lastly, through our Corneal Fellowship Program, our physicians teach tomorrow’s corneal specialists to provide care of the highest standard while treating patients and their families with compassion and respect.


Dr. Christopher J. Rapuano

Dr. Rapuano is recognized nationally and internationally as an expert in corneal diseases and has a special interest in refractive surgery. As a corneal specialist, he feels particularly skilled in LASIK surgery, which involves the reshaping of the cornea, and takes pride in decreasing the risk of LASIK complications by effectively determining who is and who is not a good candidate for the procedure.

Dr. Kristin M. Hammersmith

Dr. Hammersmith joined Corneal Associates in 2003 and directs our Corneal Fellowship Program. She is interested in the study of severe ocular surface diseases such as dry eye, blepharitis, ocular cicatricial pemphigoid, and recurrent erosion syndrome. In addition, she is an expert in the performance of the Boston Keratoprosthesis artifical corneal transplant.

Dr. Parveen K. Nagra

Dr. Nagra grew up in the Philadelphia area and attended the University of Michigan for both her undergraduate and medical school studies in the 7 year B.S.- M.D. program. She then returned to Philadelphia and Wills Eye for her Ophthalmology Residency, where she was co chief resident and her Cornea and External Diseases Fellowship with Drs. Rapuano and Hammersmith. She stayed at Wills as a cornea attending for 2 years following her fellowship and then moved to Kentucky. We are excited to announce that she has come home to Philadelphia and joined Corneal Associates at Wills Eye Institute.

She is a highly skilled Corneal, Cataract and Refractive surgeon, and a compassionate physician. She has been a great addition to our practice and to the Wills Eye community of physicians.