Keratoconus Treatment Options (from glasses to surgery)
Understanding Keratoconus and When Treatment Is Needed
Your cornea is the clear, dome-shaped front surface of your eye that helps focus light. In keratoconus, the cornea becomes thinner and weaker over time, causing it to bulge outward into an irregular cone shape instead of remaining smooth and round.
This irregular shape scatters light as it enters your eye, making it difficult to see clearly. The condition usually affects both eyes, though one eye may be worse than the other. As the cornea continues to change shape, your prescription for glasses or contact lenses may need frequent adjustments.
Many people first notice that their vision becomes blurry or distorted, even with their current glasses or contacts. You may experience increased sensitivity to light and glare, especially when driving at night.
- Frequent changes in eyeglass or contact lens prescriptions
- Difficulty seeing clearly even with corrective lenses
- Halos or streaks around lights at night
- Double vision when looking with one eye
- Eye strain and headaches from trying to focus
Certain factors increase your risk of developing keratoconus or experiencing faster progression. Knowing your risk factors helps our eye doctor determine how closely we need to monitor your condition and which treatments may work best.
- Family history of keratoconus in parents or siblings
- Chronic eye rubbing from allergies or habit
- Conditions like Down syndrome, Ehlers-Danlos syndrome, or other connective tissue disorders
- Uncontrolled eye allergies that cause frequent itching and rubbing
- Age between 10 and 25, when progression is often most rapid
We use specialized imaging technology to measure the shape and thickness of your cornea. Corneal topography creates a detailed color-coded map showing even subtle irregularities in the corneal surface. Corneal tomography provides three-dimensional imaging of the cornea, including front and back surface elevation maps and detailed thickness measurements across the entire cornea.
These tests are painless and quick, usually taking just a few minutes. We may repeat them at regular intervals to track whether your keratoconus is stable or progressing, which helps us decide if you need to advance to a different treatment.
Early-Stage Treatment Options: Glasses and Contact Lenses
In the earliest stages of keratoconus, regular eyeglasses may provide adequate vision correction. We may prescribe glasses if your corneal shape is only mildly irregular and the distortion is not too severe.
However, as keratoconus progresses and the cornea becomes more cone-shaped, glasses alone often cannot fully correct the irregular astigmatism. When you notice that new glasses no longer give you clear, comfortable vision, we will discuss moving to specialty contact lenses designed for keratoconus.
Some patients with very mild keratoconus can wear soft contact lenses, including soft toric lenses designed to correct astigmatism. These lenses are comfortable and easy to adapt to for most people.
- Work best when corneal irregularity is minimal
- May provide clearer vision than glasses in early stages
- Easier to insert and remove than rigid lenses
- Often lose effectiveness as keratoconus progresses
We will recommend advancing to specialty contact lenses when standard glasses or soft lenses no longer provide clear, functional vision. Signs that you need advanced options include frequent prescription changes, persistent blur or distortion despite updated lenses, or increasing difficulty with daily activities like reading or driving.
Moving to specialty lenses is a normal part of managing keratoconus and does not mean the condition is in a dangerous phase. Our eye doctor will guide you through the transition and help you find the most comfortable and effective option for your lifestyle.
Advanced Contact Lens Options for Keratoconus
RGP lenses are firm contact lenses that hold their shape on your eye, creating a smooth optical surface that compensates for the irregular cornea underneath. The space between the lens and your cornea fills with tears, which helps correct the distorted vision caused by the cone shape.
These lenses provide sharper vision than soft lenses for most keratoconus patients. They do require an adaptation period, and some people find them less comfortable initially, but most patients adjust well within a few weeks of consistent wear.
Hybrid lenses feature a rigid gas permeable center for clear vision surrounded by a soft outer skirt for improved comfort. This design offers the visual benefits of RGP lenses with better initial comfort similar to soft lenses.
- Rigid center vaults over the irregular cornea to improve vision
- Soft outer edge helps the lens stay centered and feel more comfortable
- May work well for patients who could not tolerate traditional RGP lenses
- Require careful fitting and regular follow-up appointments
Scleral lenses are larger diameter rigid lenses that vault completely over the cornea and rest on the white part of your eye called the sclera. They create a fluid-filled space over the entire cornea, providing excellent vision and comfort even in advanced keratoconus.
Because they do not touch the sensitive cone-shaped cornea, scleral lenses are often more comfortable than smaller RGP lenses. The larger size also makes them easier to handle and less likely to pop out during daily activities. We may recommend scleral lenses if you have significant corneal irregularity or scarring, or if smaller lenses have been uncomfortable.
Scleral lenses must be filled with preservative-free saline before insertion, and you will need to learn techniques to avoid trapping air bubbles under the lens. While many patients find them easier to handle than smaller lenses, the filling process takes practice. We will also monitor for signs of reduced oxygen to the cornea or pressure-related issues in some wearers.
A piggyback system involves wearing a soft contact lens on your eye with an RGP lens placed on top of the soft lens. The soft lens acts as a cushion, improving comfort, while the rigid lens provides clear vision by correcting the irregular cornea.
We may suggest this option if you cannot tolerate RGP lenses alone but need the visual clarity they provide. However, piggyback systems require careful fitting and maintenance of two separate lenses, and they may increase the risk of reduced oxygen to the cornea, so regular monitoring is essential.
Fitting specialty contact lenses for keratoconus takes more time and expertise than fitting standard lenses. Our eye doctor will take detailed measurements of your corneal shape and may try several different lens designs to find the best fit and vision.
- Expect multiple fitting appointments to achieve optimal comfort and clarity
- Follow the recommended wearing schedule to allow your eyes to adapt gradually
- Report any persistent discomfort, redness, or vision changes promptly
- Keep all scheduled follow-up visits to ensure lenses continue to fit properly as your eyes change
Contact lens safety and hygiene are critical to preventing serious complications:
- Do not sleep in lenses unless our eye doctor specifically prescribes overnight wear
- Avoid all water exposure while wearing lenses, including showers, swimming, and hot tubs
- Use only the recommended cleaning and disinfection system for your lens type
- Replace lenses and storage cases exactly as directed
- Stop lens wear immediately and contact us urgently if you experience pain, light sensitivity, discharge, focal redness, or sudden vision changes
Corneal Cross-Linking to Slow Progression
Corneal cross-linking is a procedure that strengthens the bonds between collagen fibers in your cornea, making it more rigid and resistant to further bulging. The treatment uses riboflavin (vitamin B2) eye drops combined with controlled ultraviolet light to create new bonds within the corneal tissue.
By reinforcing the corneal structure, cross-linking can halt or significantly slow the progression of keratoconus. While it typically does not reverse existing corneal changes or improve vision on its own, stopping progression means you may avoid needing more invasive treatments like corneal transplant surgery in the future.
The primary goal of cross-linking is to stabilize the cornea and prevent further progression. Visual improvement varies from patient to patient, with some experiencing clearer vision, some remaining unchanged, and some having temporary worsening before stabilization.
We may recommend corneal cross-linking if testing shows that your keratoconus is progressing, meaning the cornea is continuing to thin or bulge over time. The procedure works best in patients whose corneas are thick enough to safely undergo the treatment and who have relatively clear corneas without significant scarring.
- Documented progression shown on corneal topography or tomography over several months
- Adequate corneal thickness to allow safe treatment
- Progression is more common in younger patients, but treatment is based on documented progression and corneal measurements at any age
- No active eye infections or severe dry eye
- No significant corneal scarring that would limit the benefit of treatment
- Not pregnant or nursing, as treatment is typically deferred during these periods
The procedure is typically performed in our office or an outpatient surgical center. After numbing your eye with drops, we gently remove the surface layer of cells from the central cornea to allow the riboflavin drops to penetrate the tissue.
Some cross-linking protocols keep the epithelium intact, known as transepithelial or epi-on techniques. The exact method depends on your corneal thickness and our surgeon's judgment. In cases where corneal thickness is at the lower limit, we may use modified protocols designed specifically for thinner corneas.
We then apply riboflavin drops repeatedly over about 30 minutes while your cornea absorbs them. Once the cornea is saturated, we expose your eye to a controlled ultraviolet light for a specific period, activating the cross-linking process. A bandage contact lens is placed on your eye at the end to protect it during healing.
Your eye will be uncomfortable for several days after the procedure, with light sensitivity, tearing, and a gritty feeling being common. We will prescribe antibiotic and anti-inflammatory eye drops to prevent infection and reduce discomfort as the corneal surface heals.
Possible risks and complications include:
- Infection, signaled by increasing pain, discharge, or worsening redness
- Corneal haze and prolonged light sensitivity
- Delayed healing of the corneal surface
- Sterile infiltrates or inflammation requiring additional treatment
- Rare scarring or reactivation of prior viral keratitis
Vision may be blurry for several weeks to months as your cornea heals and stabilizes. Most patients see stabilization of their keratoconus within three to six months, though we will continue monitoring with corneal imaging for at least a year. The goal is to stop progression, and cross-linking is effective when performed using current evidence-based protocols and appropriate patient selection. In some cases where progression continues despite treatment, repeat cross-linking may be considered, making ongoing follow-up imaging essential.
Surgical Treatment Options for Advanced Keratoconus
Intacs are small, curved plastic inserts that we surgically place within the layers of your cornea to help flatten the cone and reduce irregular astigmatism. These implants can improve vision and may allow you to see better with glasses or contact lenses.
The procedure involves creating small channels in your cornea and inserting one or two arc-shaped segments. Intacs may be considered in specific cases when contact lenses no longer provide adequate vision but the cornea is not yet severely scarred. They can sometimes be combined with corneal cross-linking for better long-term results.
Outcomes with Intacs are variable, and most patients still require glasses or contact lenses after the procedure for best vision. The implants are not ideal for very thin corneas or significant central scarring, and candidacy is determined on a case-by-case basis. Potential complications include glare or halos around lights, infection, segment extrusion or migration, and the need for repositioning or removal. When appropriate, Intacs may be combined with corneal cross-linking to improve long-term stability, with the sequence of treatments individualized to your situation.
Deep anterior lamellar keratoplasty, or DALK, replaces the damaged outer and middle layers of your cornea while preserving the healthy inner layer. This technique offers advantages over full-thickness transplant because keeping your own innermost layer reduces the risk of rejection and certain complications.
- Replaces only the diseased tissue, preserving healthy inner layers
- Lower risk of transplant rejection compared to full-thickness transplant
- Provides excellent vision improvement in most cases
- Requires several months for vision to stabilize after surgery
Most patients will still need glasses or contact lenses after DALK for optimal vision correction. Possible complications include haze at the interface between tissue layers, residual astigmatism requiring further correction, and the possibility that the procedure may need to be converted to a full-thickness transplant during surgery if the innermost layer cannot be preserved safely.
Penetrating keratoplasty replaces your entire cornea with healthy donor tissue. We may recommend this surgery when keratoconus is very advanced with severe scarring, when you cannot achieve functional vision with any other treatment, or when other surgical options are not suitable.
Full-thickness transplant has a long track record of success in restoring vision, though it typically involves a longer recovery than partial transplant. You will need to use eye drops for many months and attend frequent follow-up appointments. Most patients still need glasses or contact lenses after transplant for the best vision, but the overall visual outcome is usually much better than before surgery.
Long-term considerations after penetrating keratoplasty include:
- Ongoing risk of transplant rejection requiring lifelong monitoring
- Extended topical steroid course with monitoring for elevated eye pressure and glaucoma risk
- Suture-related astigmatism and prolonged period before vision fully stabilizes
- Infection risk and need for activity precautions in the early healing phase
We consider surgical options when specialty contact lenses no longer provide adequate vision for your daily needs, when you cannot tolerate contact lenses due to discomfort or complications, or when corneal scarring significantly impairs your sight. Surgery may also be needed if extreme corneal thinning increases vulnerability to injury, if acute corneal hydrops occurs with severe swelling and scarring, or if progressive scarring from prior hydrops episodes limits your vision.
Our eye doctor will discuss all available options with you, including the potential benefits and risks of each procedure. Most keratoconus patients can manage well with contact lenses and cross-linking, so surgery is reserved for more advanced situations where less invasive treatments have not been successful.
What to Expect After Treatment and Long-Term Care
If you wear specialty contact lenses, we will schedule regular follow-up visits every three to twelve months to check your lens fit and monitor your corneal shape. More frequent visits may be needed if we detect progression or if your lenses need adjustment.
After corneal cross-linking, expect appointments at one day, one week, one month, three months, six months, and one year post-procedure to track healing and stability. Following corneal transplant surgery, visits are very frequent at first, then gradually spaced further apart over the course of a year or more as your eye heals and stabilizes.
Chronic eye rubbing is one of the most significant modifiable risk factors for keratoconus progression. Rubbing can weaken the cornea further and cause the cone to worsen more rapidly, so avoiding this habit is critical.
- Treat eye allergies promptly with medications to reduce itching and the urge to rub
- Use preservative-free artificial tears to soothe irritation without rubbing
- Wear protective eyewear during sports or activities that could injure your eyes
- Keep your hands away from your eyes and teach children with keratoconus not to rub
Contact our office if you notice sudden changes in your vision, increasing blur or distortion, or if your contact lenses become uncomfortable or no longer provide clear sight. These changes may indicate that your keratoconus is progressing or that your lenses need refitting.
Other signs include frequent headaches from eye strain, new sensitivity to light, or halos around lights that are worse than before. Early intervention when problems arise can help preserve your vision and comfort, so do not wait for your scheduled appointment if you experience significant new symptoms.
Seek immediate medical attention if you experience sudden severe eye pain, dramatic vision loss, or if your eye becomes very red and sensitive to light. Sudden marked blurring with corneal whitening or swelling may indicate acute corneal hydrops, where fluid breaks through into the corneal layers. Hydrops is urgent but not typically an infection and requires prompt evaluation and specialized management.
If you have had a corneal transplant, watch for signs of graft rejection, which include redness, sensitivity to light, decreased vision, and eye discomfort. Rejection can occur even without severe pain, so report any of these changes promptly. Early treatment of rejection can often reverse the process and save the graft.
Contact lens wearers should remove their lenses immediately and seek urgent care if you develop eye pain, sensitivity to light, discharge, a new white spot on the cornea, or focal redness. These symptoms may indicate a serious infection that requires immediate treatment to prevent vision loss.
After any keratoconus surgery, contact us right away if you develop increasing pain, worsening redness, discharge, or new symptoms. Early treatment of complications can prevent permanent damage and protect the success of your treatment.
Frequently Asked Questions
There is currently no cure for keratoconus, but we can manage it effectively with various treatments. Most patients will need ongoing vision correction with glasses or contact lenses throughout their lives, though corneal cross-linking can stop progression and transplant surgery can restore vision in advanced cases.
The condition often stabilizes naturally as you reach your 40s, so the need for intervention may decrease over time.
Coverage varies widely depending on your insurance plan and the medical necessity of the treatment.
Many medical insurance plans cover corneal cross-linking when it is deemed medically necessary to halt progression, and some cover medically necessary specialty contact lenses for keratoconus. Vision insurance plans typically offer more limited coverage for contact lenses. We recommend contacting your insurance provider before beginning treatment to understand your benefits and potential out-of-pocket costs.
LASIK and other laser vision correction procedures are not appropriate for keratoconus patients because these surgeries thin and reshape the cornea, which could worsen the condition.
In fact, screening for keratoconus is a standard part of the evaluation for anyone considering LASIK, and the presence of keratoconus or even early warning signs is a disqualification. We focus on treatments that stabilize or compensate for the irregular cornea rather than further altering its structure.
Progression rates vary widely from person to person. Some patients experience rapid changes over months, while others have slow progression over years, and some cases stabilize on their own without intervention.
Corneal cross-linking is specifically designed to stop or greatly slow progression and has proven effective in clinical studies following current treatment protocols. Without treatment, progressive cases may continue to worsen, potentially requiring more invasive interventions later.
If specialty contact lenses are too uncomfortable or you develop complications that prevent lens wear, we have other options depending on your corneal condition. Scleral lenses are often successful for patients who could not wear smaller RGP lenses.
If no contact lens option works and your vision is significantly impaired, surgical treatments such as corneal implants or transplant may restore your ability to see clearly and function in daily life.
Getting Help for Keratoconus Treatment Options (from glasses to surgery)
If you have been diagnosed with keratoconus or are experiencing vision changes that concern you, our eye doctor can evaluate your condition and recommend the most appropriate treatment for your specific situation. We will partner with you to preserve your vision and quality of life through every stage of the disease, from simple glasses to advanced surgical options when needed.