It is our sincere pleasure to present the eighth edition of The Wills Eye Manual. This edition arises from the foundation laid by all preceding contributors and, as in years past, would not have been possible without the collaborative efforts, teamwork, and never-satisfied mentality of the Wills Eye residents, fellows, and faculty. Our hope is for readers to find within this text the most up-to-date information and collective clinical recommendations regarding the office and emergency room evaluation, diagnosis, management, and treatment of ophthalmic disease.

The eighth edition includes the results of major clinical trials since the last edition. Changing trends in the workup, categorization, and treatment of various ophthalmic specialties including trauma, oculoplastics, cornea, pediatrics, neuro-ophthalmology, uveitis, and retinal disease are reflected in this current edition. We are proud to share our updated multimedia component of The Wills Eye Manual, including an electronic database of various clinical conditions and the addition of new office and emergency room procedures. While incorporating current medical and technological trends, we strived to maintain the original goals of the founding editors, namely to provide a streamlined, concise, and readily accessible resource for healthcare providers approaching patients in need of eye care.

We hope you continue to utilize the eighth edition of The Wills Eye Manual and find it to be a convenient, easy-to-use guide for the management of ophthalmic disease.

Kalla A. Gervasio, M.D.
Travis J. Peck, M.D.
Cherie A. Fathy, M.D., M.P.H.
Meera D. Sivalingam, M.D.