Keratoconus

Overview

Keratoconus is a condition in which the cornea gradually thins and becomes more irregular or cone-shaped. The altered shape can create distorted vision that ordinary glasses or standard contact lenses may not fully correct.

Symptoms

Symptoms can include increasing astigmatism, ghost images, glare, halos, light sensitivity, frequent prescription changes, and vision that remains distorted with new glasses. One eye may be affected more than the other.

When to see a doctor

Arrange an evaluation for rapid prescription changes, increasing distortion, reduced best-corrected vision, or a family history of keratoconus. Sudden pain and cloudy vision can indicate acute corneal swelling and require urgent care.

Causes

The exact cause is complex and likely involves genetics and altered corneal structure. Repeated vigorous eye rubbing and chronic allergy-related irritation may contribute to progression in susceptible people.

Risk Factors

Risk is higher with family history, frequent eye rubbing, significant allergies, Down syndrome, connective-tissue disorders, and certain inherited conditions. Keratoconus often begins during the teen or young-adult years.

Complications

Progression can cause severe irregular astigmatism, contact lens intolerance, corneal scarring, and reduced vision. Advanced disease may eventually require corneal surgery or transplantation.

Diagnosis & Treatment

Evaluation may include refraction, slit-lamp examination, corneal topography or tomography, and thickness measurements. Glasses can help early disease; specialty soft, RGP, hybrid, or scleral lenses may improve vision. Progressive cases may be referred for corneal cross-linking.

See more clearly with a custom plan

Bespoke Eye Care provides detailed corneal evaluation and specialty lens care for keratoconus patients in Chester Springs.