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Understanding Keratoconus and the Role of Scleral Lenses

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What is Keratoconus?

Kerataconus is a condition that affects the cornea, the clear front part of the eye. Although it might sound intimidating, understanding keratoconus and its available treatments can help you or someone you know find proper treatment and maintain clear vision.

At Eagle Ranch Vision, we help patients with keratoconus achieve clear, comfortable, and healthy vision using scleral contact lenses. Contact us to schedule your appointment if you or someone you love has been diagnosed with a corneal condition.

Keratoconus is an eye condition where the cornea, which is normally round and dome-shaped, becomes thin and develops a cone-like bulge. This irregular shape affects the cornea's ability to properly focus light onto the retina, resulting in blurry and distorted vision.

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Causes of Keratoconus

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While the exact cause of keratoconus is still not fully understood, it is believed to be a combination of genetic and environmental factors. If you have a family history of keratoconus, you may be at a higher risk of developing the condition. Frequent eye rubbing, chronic eye irritation, and certain underlying conditions, such as allergies, can also contribute to its development.


Symptoms of Keratoconus

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Keratoconus typically starts during the teenage years and gradually progresses over time. The following symptoms may indicate the presence of keratoconus:

  • Blurred or distorted vision: Objects may appear distorted, and it can become increasingly difficult to see clearly even with corrective lenses.
  • Increased sensitivity to light: Bright lights may cause discomfort and glare.
  • Halos and ghosting: Seeing halos or ghosting around lights, especially at night.
  • Eye strain and fatigue: Eyes may feel tired or strained, especially after focusing on objects for extended periods.

Treatment Options for Keratoconus

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Several treatment and corrective options are available for keratoconus. The choice of treatment depends on the severity of the condition and the individual's specific needs. The options include:

  • Glasses or contact lenses: In the early stages, regular glasses or soft contact lenses may be sufficient to correct vision. However, as the condition progresses, specialized lenses become necessary.
  • Hybrid lenses: Hybrid lenses combine the features of rigid and soft lenses. They have a rigid center for clear vision and a soft outer ring for increased comfort.
  • Corneal cross-linking (CXL): This treatment aims to strengthen the cornea using a combination of riboflavin eye drops and ultraviolet light. CXL can help slow down the progression of keratoconus.
  • Scleral lenses: Scleral lenses are becoming increasingly popular for managing keratoconus due to their unique design, comfort, and optical clarity.

Scleral Lenses: A Promising Solution at Eagle Ranch Vision

Scleral lenses are large, rigid lenses that vault over the cornea, resting on the sclera (the white part of the eye). Unlike traditional contact lenses, which sit directly on the cornea, scleral lenses create a tear-filled space between the lens and the cornea. This reservoir of fluid acts as a protective barrier, keeping the cornea hydrated and providing a smooth optical surface for improved vision.

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How Do Scleral Lenses Work?

Diagram explaining Keratoconus

Diagram explaining Keratoconus

When a person with keratoconus wears scleral lenses, the lens creates a uniform surface over the irregular cornea. This helps to reduce distortions and provide clearer vision. The liquid reservoir also moisturizes the cornea, reducing dryness and discomfort. In fact, some studies have found that patients with keratoconus who consistently wear scleral lenses have a much lower chance of needing a corneal transplant. This is due largely to the fact that scleral lenses protect the cornea and shield it from irritation due to blinking and other factors.

Scleral lenses are custom-made for each individual's eye shape and condition. They are highly durable and can usually be worn for longer periods without discomfort.

Effective Keratoconus Treatment at Eagle Ranch Vision

Living with keratoconus can be challenging, but with the right understanding and treatment, individuals can achieve improved vision and a better quality of life. While various treatment options exist, scleral lenses have gained recognition for their ability to address the unique needs of those with keratoconus.

If you suspect you may have keratoconus or know someone who does, consult an eye care professional at Eagle Ranch Vision who can guide you through the available treatment options, including the potential benefits of scleral lenses. Remember, early detection and intervention are key to managing this condition effectively.


Keratoconus FAQs

Can keratoconus be prevented?

Currently, there is no known way to prevent keratoconus. However, avoiding excessive eye rubbing and taking steps to maintain good overall eye health may help reduce the risk of progression.

Can scleral lenses be uncomfortable to wear?

While it may take some time to adjust to wearing scleral lenses, they are designed for comfort and improved vision. The liquid reservoir between the lens and the cornea helps keep the eyes hydrated, reducing discomfort often associated with other types of lenses.

Patient Reviews
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1137 Reviews
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- Jul. 30, 2025
On two occasions we have made urgent visits to Dr. Giammarco for eye issues. Both times he was thoro... ugh, kind, and reassuring about healing. Highly recommend him.
- Jul. 29, 2025
Amazing Doctors and Staff. Clean office and friendly.
- Jul. 28, 2025
I found Dr. Corey Giammarco through Zocdoc and chose him because he had next-day availability and gr... eat reviews. There’s definitely a reason so many people speak highly of him. I went in with no expectations, but the care I received far exceeded them. He was knowledgeable, informative, and took the time to explain different options for my concerns. He also shared helpful details that no other optometrist had ever mentioned. I left with a clear treatment plan, a scheduled follow-up, and full confidence in continuing my care with him. I highly recommend him to anyone looking for thorough, thoughtful eye care.
- Jul. 24, 2025
Friendly staff, thorough examination and the Dr. took the time and answered all of my questions.
- Jul. 13, 2025
Dr. Giamarrco was very thorough in examining my eyes. He found an issue and immediately sent me to a... retina specialist. I finally got back to eagle ranch to get my eyewear last week. I'm very pleased with this facility.
- Jul. 09, 2025
I have been a patient of Eagle Ranch Vision since 2007. I tried a different optometrist once but wen... t back to Dr. Aston because he can handle my complicated eyes and prescription. Dr. Aston is meticulous and takes time to figure out how to keep me seeing straight, quite literally. Definitely recommend their services.
- Jul. 03, 2025
Rhonda was a huge help and had fantastic customer service, she is an awesome person!
- Jun. 23, 2025
I can’t say enough good things about this team! I was in a bind and needed an emergency order for ... my glasses shipped across the country due to last-minute work travel. They were incredibly helpful, responsive, and professional every step of the way. They managed to get everything done and delivered in just a week—faster than I ever expected. Truly grateful for their support and outstanding service!
- Jun. 13, 2025
We saw two different doctors here and they were both really great! And Heather is absolutely amazing... . She stayed late for us while we were trying to decide which glasses to get. LOVE her.
- Jun. 13, 2025
Really clean and friendly staff.
- Jun. 11, 2025
Dr. Giammarco is so caring, friendly and thorough in his examination. I highly recommend seeing him!... Also the rest of the staff is awesome as well! He even called me personally to follow up on a slight emergency, he had suggested I go to the hospital due to a fall I had, they did the retinal exam and saw some swelling around my optic nerve. He's awesome!
- Jun. 08, 2025
Highly recommend Eagle Ranch Vision. They are very friendly and professional and really explain ever... ything to you about your eye exam.
- May. 19, 2025
Awesome eye care group!
- May. 18, 2025
Dr Aston was great and staff was equally caring and polite. The process was painless and quick with ... great technology to ensure our eyes were in good health.
- May. 18, 2025
Been going here for two decades. Always friendly, helpful, knowledgeable, personable and genuine in ... caring for their clients.
- May. 17, 2025
All the doctors and staff are very kind and friendly. Hard to find this kind of good customer servic... e so staff must be very happy with their jobs. We see Dr. Giammarco who is very knowledgeable and is never in a rush to get us in and out. Really takes his time with his patients. We can’t recommend Eagle Ranch Vision enough!
- May. 16, 2025
Love the staff and my glasses are always great quality!!
- May. 14, 2025
They are absolutely fast and amazing!
- May. 08, 2025
Lisa is great helping with selection of and fitting glasses. Dr Giammarco is patient, easy to commun... icate with, knowledgeable, and empathetic.
- May. 02, 2025
Dr Aston is friendly warm and precise. Excellent doctor.

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Your Keratoconus Treatment Specialist in Fort Worth

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Navigating Keratoconus Together

(817) 750-2233