Keratoconus is a progressive eye condition that changes the shape of the cornea, making it thinner and causing it to bulge into a cone-like shape. This irregular shape prevents light from focusing properly on the retina, resulting in distorted, blurry, and often fluctuating vision. While keratoconus can be frustrating, advances in specialty contact lens technology have dramatically improved the quality of life for many patients.
At Clinton Eye Associates, we help patients with keratoconus achieve clearer, more comfortable vision through comprehensive eye examinations, advanced diagnostic technology, and customized specialty contact lens fittings. Whether you have recently been diagnosed or have struggled with changing prescriptions for years, specialized treatment can make a significant difference.
What Is Keratoconus?
Understanding the Condition
The cornea is the clear, dome-shaped surface at the front of the eye. Under normal circumstances, it maintains a smooth, rounded shape that focuses incoming light accurately onto the retina.
With keratoconus, the cornea gradually becomes thinner and bulges outward into a cone shape. This creates irregular astigmatism that cannot always be fully corrected with traditional eyeglasses or soft contact lenses.
Keratoconus typically develops during the teenage years or early adulthood and often progresses over 10 to 20 years before stabilizing. The severity and progression vary widely from person to person.
What Causes Keratoconus?
A Combination of Genetic and Environmental Factors
Researchers continue to study the exact cause of keratoconus, but several factors are associated with its development, including:
- Family history of keratoconus
- Chronic eye rubbing
- Allergies causing persistent eye irritation
- Connective tissue disorders
- Certain genetic conditions
- Abnormal collagen structure within the cornea
While genetics play an important role, environmental factors such as aggressive eye rubbing can contribute to progression.
Symptoms of Keratoconus
Early Signs Can Be Subtle
Many patients initially believe they simply need a stronger eyeglass prescription because symptoms often begin gradually.
Common symptoms include:
- Blurred or distorted vision
- Frequent prescription changes
- Increased sensitivity to light
- Glare and halos around lights
- Difficulty driving at night
- Ghosting or double images
- Eye strain
- Reduced visual clarity despite new glasses
As the condition progresses, vision often becomes increasingly difficult to correct with standard eyewear.
How Is Keratoconus Diagnosed?
Advanced Corneal Imaging Provides Early Detection
Comprehensive eye examinations can identify signs of keratoconus before vision becomes severely affected.
Diagnostic testing often includes:
- Comprehensive vision testing
- Refraction
- Slit-lamp examination
- Corneal topography
- Corneal tomography
- Corneal thickness measurements (pachymetry)
Corneal topography creates a detailed map of the cornea’s surface, allowing eye doctors to detect even subtle changes in curvature.
Why Traditional Glasses Often Stop Working
Irregular Astigmatism Requires Specialized Correction
Standard eyeglasses and soft contact lenses work well when vision problems are caused by regular refractive errors such as nearsightedness or typical astigmatism.
Keratoconus creates an irregular corneal surface that bends light unpredictably. Because glasses simply sit in front of the eyes, they cannot compensate for these complex distortions.
Patients often notice that even with updated prescriptions, vision remains blurry or inconsistent.
How Specialty Contact Lenses Improve Vision
Creating a Smooth Optical Surface
Specialty contact lenses work differently than standard soft lenses. Rather than conforming to the irregular shape of the cornea, many specialty lenses create a new, smooth optical surface that allows light to focus more accurately.
This dramatically improves visual clarity for many keratoconus patients.
Types of Specialty Contact Lenses for Keratoconus
Rigid Gas Permeable (RGP) Lenses
Rigid gas permeable lenses are one of the most common treatment options for keratoconus.
These lenses:
- Maintain their shape on the eye
- Mask corneal irregularities
- Provide crisp vision
- Allow oxygen to reach the cornea
Although they may require an adjustment period, many patients achieve excellent vision with RGP lenses.
Scleral Contact Lenses
Scleral lenses have become one of the most successful options for moderate to advanced keratoconus.
Unlike traditional contacts, scleral lenses rest on the white part of the eye (the sclera) rather than directly on the cornea.
Benefits include:
- Exceptional comfort
- Outstanding visual quality
- Increased stability
- Protection for the corneal surface
- Continuous hydration from the fluid reservoir beneath the lens
Many patients who struggled with other contact lenses find scleral lenses significantly more comfortable.
Hybrid Contact Lenses
Hybrid lenses combine the advantages of both rigid and soft lenses.
They feature:
- A rigid center for sharp vision
- A soft outer skirt for improved comfort
Hybrid lenses can be an excellent option for patients seeking both visual clarity and enhanced comfort.
Custom Soft Lenses
In certain cases of mild keratoconus, specially designed custom soft contact lenses may provide improved vision while offering the familiar comfort of traditional soft lenses.
The Specialty Contact Lens Fitting Process
Every Eye Is Unique
Fitting specialty contact lenses is much more involved than fitting standard contacts.
The process may include:
- Detailed corneal mapping
- Precise eye measurements
- Diagnostic lens fitting
- Evaluation of lens movement
- Vision assessment
- Comfort evaluation
- Follow-up visits
- Fine adjustments to optimize fit
Because every cornea is unique, achieving the ideal fit may require several appointments.
Can Specialty Contact Lenses Stop Keratoconus?
They Improve Vision but Do Not Prevent Progression
Specialty contact lenses restore clearer vision by correcting the optical distortions caused by keratoconus, but they do not halt the disease itself.
Patients with progressive keratoconus may benefit from corneal collagen cross-linking (CXL), a procedure that strengthens the cornea and helps slow or stop further progression. After stabilization, specialty contact lenses often provide excellent visual rehabilitation.
Living Comfortably with Keratoconus
Daily Care Matters
Successful management involves more than wearing contact lenses.
Patients should:
- Avoid rubbing their eyes
- Manage allergies promptly
- Attend regular eye examinations
- Follow recommended lens cleaning procedures
- Replace lenses as directed
- Report any sudden vision changes immediately
Routine monitoring helps ensure the condition remains stable and that your lenses continue providing optimal vision.
Why Early Diagnosis Makes a Difference
Protecting Long-Term Vision
Detecting keratoconus early allows eye doctors to monitor progression closely and recommend appropriate treatment before significant vision loss occurs.
Early intervention often reduces complications and expands available treatment options.
If you notice rapidly changing prescriptions, increasing astigmatism, or persistent blurry vision despite new glasses, scheduling a comprehensive eye examination is an important first step.
Why Choose Clinton Eye Associates for Specialty Contact Lenses?
Patients with keratoconus require individualized care and advanced expertise. At Clinton Eye Associates, our experienced team provides comprehensive eye examinations, advanced diagnostic imaging, and customized specialty contact lens fittings designed to maximize vision, comfort, and long-term eye health.
We understand that every patient’s eyes are different, and we work closely with you to identify the specialty lens solution that best meets your unique visual needs and lifestyle.
Frequently Asked Questions
Can keratoconus cause blindness?
Keratoconus rarely causes complete blindness. However, if left untreated, it can significantly impair vision. Early diagnosis and appropriate treatment help preserve vision and improve quality of life.
Can glasses correct keratoconus?
In the earliest stages, glasses may provide satisfactory vision. As the condition progresses, specialty contact lenses typically provide much better visual correction.
Are scleral lenses comfortable?
Yes. Although they are larger than traditional contacts, scleral lenses rest on the less sensitive sclera rather than the cornea, making them extremely comfortable for many patients.
How long do specialty contact lenses last?
The lifespan depends on the lens type, materials, and proper care. Many specialty lenses can last one to two years or longer with appropriate maintenance and regular follow-up care.
Is keratoconus hereditary?
Genetics are believed to play an important role. Individuals with a family history of keratoconus may have a higher risk of developing the condition.
Can I wear specialty lenses every day?
Most patients successfully wear specialty contact lenses daily. Your eye doctor will recommend a wearing schedule based on your eye health and the type of lens prescribed.
What happens if keratoconus gets worse?
If progression is detected, treatments such as corneal collagen cross-linking may help stabilize the cornea. Specialty contact lenses can then continue providing improved vision.
Do specialty contact lenses require special cleaning?
Yes. Specialty lenses require specific cleaning and disinfecting solutions. Following your eye doctor’s instructions helps maintain lens performance and eye health.
Is surgery always necessary?
No. Many patients achieve excellent vision with specialty contact lenses alone. Surgery is typically reserved for advanced cases or when other treatments are no longer effective.
How often should I have follow-up visits?
Patients with keratoconus generally require regular monitoring to evaluate corneal stability, assess lens fit, and ensure optimal vision correction.
Contact Information
Clinton Eye Associates
116 E Main St #4
Clinton, CT 06413
Phone: (860) 669-2020
Website: clintoneye.com