Thygeson superficial punctate keratitis and scarring.

Purpose: Thygeson superficial punctate keratitis (TSPK), a chronic, inflammatory disease, has traditionally been taught to resolve spontaneously and without scarring. We present 4 cases with TSPK who developed sight-altering scarring after a prolonged disease course.

Methods: Retrospective chart review of cases seen at the Proctor Medical Group.

Bilateral corneal opacities in a LASIK patient after the use of titanium eye shields.

Unlabelled: We report a case of bilateral corneal opacities in a laser in situ keratomileusis (LASIK) patient who subsequently had carbon dioxide (CO(2)) laser skin resurfacing. The presumed etiology of the visually significant corneal opacities was late-onset diffuse lamellar keratitis (DLK), secondary to traumatic corneal abrasions from the use of metal eye shields. The DLK went untreated for 1 month, resulting in permanent interface scarring and a corrected distance visual acuity of 20/30 in the patient's right eye and 20/20 in the left eye.

Clinical assessment of corneal hydration control in Fuchs' dystrophy.

The diagnosis and monitoring of Fuchs' disease is typically based on information obtained from patient symptoms and a slitlamp examination. Although this clinical information provides a basis for diagnosis, it does not give a quantitative method for charting the progression of the disease systematically or a reliable basis for predicting the cornea's capacity to remain transparent after stress (e.g.

Corneal hydration control in Fuchs' dystrophy.

Corneal hydration control was tested in 22 patients with Fuchs' dystrophy, and eight subjects of similar age without the disease, by measuring the corneal thickness recovery from swelling induced by hypoxia or following overnight sleep. Measurement precision was enhanced by using a modified optical pachometer and conducting two test procedures which were analyzed by a coupled exponential model. We have identified three parameters of the recovery from corneal swelling which may be used to describe hydration control: percent recovery per hour (PRPH) (mean 25.