Understanding Keratoconus
What Is Keratoconus
This section explains how keratoconus develops and why early recognition is important.
The cornea is the clear front part of the eye. In keratoconus it becomes thinner and bends outward, preventing light from focusing properly on the retina.
Keratoconus usually starts in the teen years or early adulthood and may slowly worsen for ten to twenty years before stabilizing.
Patients may notice blurred or double images, streaks of light, and trouble seeing at night as the cone shape becomes more pronounced.
Unlike nearsightedness or astigmatism, the irregular cornea in keratoconus distorts light in several directions, making standard glasses or soft contacts less effective.
Treatment Options for Keratoconus
Several therapies can slow progression and improve sight, ranging from specialty lenses to surgery.
Many patients achieve clear vision with custom lenses that create a smooth optical surface.
- Rigid gas permeable lenses rest on the cornea and work well in early to moderate stages.
- Scleral lenses vault over the cornea, hold fluid against the eye, and are helpful for advanced cases.
This in-office procedure uses ultraviolet light and vitamin B2 drops to strengthen corneal fibers and can halt or slow progression.
When scarring or thinning is severe, replacing part or all of the cornea with donor tissue can restore a clearer surface.
Even after surgery, many patients continue to wear specialty lenses to fine-tune their sight and protect the new cornea.
Importance of Early Detection
Spotting keratoconus early offers the best chance to preserve stable vision.
Timely diagnosis allows treatments such as cross-linking to stop further thinning before significant vision loss occurs.
With early care, patients can continue everyday activities like driving, reading, and sports with fewer limitations.
Comprehensive exams that include corneal imaging help uncover subtle changes long before symptoms become obvious.
Advanced Diagnostic Techniques
Modern imaging tools give detailed information about corneal shape and thickness.
This test creates a color map of the corneal surface, revealing even slight irregularities.
Tomography measures both front and back corneal surfaces, providing a three-dimensional view of thinning areas.
Our ophthalmologist looks for several signs that suggest keratoconus.
- Central or lower corneal thinning
- Irregular steepening of curvature
- Noticeable differences between the two eyes
- Frequent and rapid prescription changes
Recognizing Signs and Symptoms
Understanding common symptoms encourages patients to seek evaluation sooner.
Objects may appear stretched, ghosted, or blurry even with updated glasses.
Bright lights, especially headlights at night, can cause discomfort and halos.
Rapid shifts toward stronger nearsightedness or astigmatism can be an early warning signal.
Scattered light can make road signs and oncoming traffic harder to see after dark.
Frequently Asked Questions
The following questions address common concerns about keratoconus.
There is no cure, but treatments like cross-linking, specialty lenses, and surgery can stop progression and improve vision.
The condition is usually painless, though severe cases can cause irritation or discomfort from a protruding cornea.
Only a small percentage of patients require transplant surgery. Most manage well with cross-linking and custom contact lenses.
Your eye doctor will recommend a schedule, but many patients with keratoconus are monitored every six to twelve months.
Your Partner in Eye Health
Our team is committed to protecting your sight and guiding you through every step of keratoconus care. If you notice changes in your vision, reach out to us for a thorough evaluation and a treatment plan tailored to your needs.
excellent surgeon . very satisfied with cornea transplant.
Greg
They did a very thorough analysis and found I had a scratched cornea. This will be my new go to for optometry.
Paula Clark
Patient at Westwood Ophthalmology for almost 10 years. Dr. Pagan is my ophthalmologist, she is wonderful. I saw Dr. Lee recently for cornea surgery and follow-up. He is competent and caring.
Beth Cruz
Dr. Pagan-Duran listens attentively and explains throughout exam. She takes her time with each patient, never rushed. She is knowledgeable, caring ophthalmologist.
Ines Vassos
I'm always comfortable with the doctor since my cataract surgery 2 years ago. Outstanding bedside manner. I’ve been a patient of Westwood Ophthalmology for 20 years and would never consider another group.
Joseph Tamberelli