Bacterial Corneal Ulcers Richard L. Abbott Colleen P. Halfpenny Michael Zegans Paul A. Kremer Ulceration of the cornea may be either infectious or sterile and requires immediate intervention to prevent…

Acanthamoeba Keratitis Richard L. Abbott Colleen P. Halfpenny Michael Zegans Troy R. Elander Acanthamoeba is a ubiquitous, free-living protozoon that causes a serious and troublesome keratitis. At greatest risk are…

Superficial Keratopathy Douglas J. Coster Corneal surface abnormalities are common. They are important because they can affect vision and are often uncomfortable. The anterior corneal surface, and the tear film…

Keratoconus and Other Noninflammatory Corneal Thinning Disorders Atul Jain Yannis M. Paulus Glenn C. Cockerham Kenneth R. Kenyon Corneal thinning disorders are a significant cause of visual disability due to…

Corneal Dysgeneses and Degenerations Jason S. Ehrlich MD, PhD Glenn C. Cockerham MD Kenneth R. Kenyon MD Corneal dysgeneses and degenerations account for a broad spectrum of ocular abnormalities that…

Corneal Edema Woodford S. Vanmeter W. Barry Lee Douglas G. Katz Corneal edema may be associated with several pathologic conditions in all layers of the cornea. Consequently, a wide variety…

Cornea and Systemic Diseases Farnaz Memarzadeh Samuel C. Yiu Ronald E. Smith Pathologic changes in the cornea are associated with a wide variety of systemic diseases. In some instances, these…

The Corneal Dystrophies Glenn C. Cockerham Kenneth R. Kenyon Corneal dystrophies typically exhibit a familial pattern, are bilateral and generally symmetric, and are not known to be caused by environmental…

The Diagnosis and Management of Dry Eye Disease Michael A. Lemp Gary N. Foulks Dry eye has been a subject of great interest affecting many people throughout the world. This…

Lacrimal Drainage System Myron Tanenbaum Clinton D. McCord Jr. A clinician’s approach to lacrimal disorders should be logical and organized. Just as neurologic disorders must be carefully localized, so too…