Halos at Night. Blurry Mornings. Soft Contacts That Never Quite Work.
There's a Better Answer for RK Patients.
If you had Radial Keratotomy in the 1980s or 1990s and you're still struggling with halos at night, vision that shifts throughout the day, or soft contacts that cause dryness and distortion — your eye doctor may not know what you need.
Scleral contact lenses eliminate halos, stabilize your daily vision fluctuation, and relieve the chronic dry eye that soft lenses worsen. We've been fitting scleral lenses for RK patients since before most eye doctors knew what RK was.
Halos & Starbursts at Night
Headlights, streetlights, driving
Vision Shifts During the Day
Worse mornings, better afternoons
Soft Lenses That Don't Work
Dryness, distortion, blur
Radial keratotomy (RK) is a refractive eye surgery performed primarily in the 1980s and 1990s that used a diamond blade to make spoke-like incisions in the cornea to flatten it and reduce nearsightedness. Unlike laser-based procedures, RK creates permanent corneal incisions that can destabilize the eye over time — causing hyperopic shift, diurnal vision fluctuation, night halos, and worsening dry eye decades after surgery. Scleral contact lenses are currently the most effective non-surgical treatment for long-term RK complications, vaulting over the irregular corneal surface to restore stable, distortion-free vision.
Americans who had RK in the 1980s–90s, now in their 50s, 60s, and 70s
are still wearing soft lenses or glasses — and suffering with halos, fluctuation, and dry eye unnecessarily
Dr. Bonakdar has managed RK patients since the procedure was performed — experience most eye doctors today simply don't have
Why RK Causes Halos, Starbursts & Glare at Night — And How to Stop It
If headlights look like starbursts and streetlights have halos, your RK incisions are the cause. This is fixable — but not with glasses or soft contact lenses.
Every RK patient has incision scars radiating from the center of their cornea like spokes on a wheel. When light enters the eye in bright conditions, your pupil is small enough that most light passes through the undisturbed central cornea. Your vision is passable.
At night, your pupil dilates — and everything changes. A dilated pupil allows light to enter across a much wider area, including the incision scars. Each scar refracts and scatters light differently. The result: oncoming headlights explode into starbursts, streetlights sprout halos, and driving at night becomes genuinely difficult or dangerous.
This is not a prescription problem. It is a surface irregularity problem. No glasses prescription can eliminate scattered light from corneal scars. No soft contact lens can smooth over them. The only optical solution that bypasses the irregular corneal surface entirely is a scleral lens.
Scleral lenses vault completely over the RK incisions and create a perfectly smooth, spherical front surface. Halos and starbursts dramatically diminish or disappear. RK patients who have struggled with night driving for decades consistently describe the improvement as life-changing.
With Glasses or Soft Lenses
- ✕ Headlights are starburst explosions of light
- ✕ Halos ring every streetlight and traffic signal
- ✕ Night driving is exhausting or avoided entirely
- ✕ The problem cannot improve — the scars are permanent
- ✕ Soft lenses flex over the scar pattern, not through it
With Scleral Contact Lenses
- ✓ The lens vaults over every incision — no light scatter
- ✓ A perfectly smooth outer surface eliminates aberrations
- ✓ Most patients report dramatic halo reduction within days
- ✓ Night driving becomes comfortable again
- ✓ The saline reservoir also relieves night dryness
“I stopped driving at night 4 years ago because the halos were so bad I was afraid I'd cause an accident. Three weeks into scleral lenses, I drove home from a dinner in the dark for the first time since 2018. I was in tears.”
— RK Patient (1990), Scleral Lens Patient since 2022 · Tustin, CA
The Soft Contact Lens Trap — And Why Thousands of RK Patients Are Still Stuck In It
An estimated 2 million Americans had RK. Most of them are now being managed with solutions that were never designed for their corneas.
Soft Lenses Don't Correct Irregularity
Soft lenses are flexible. They drape over your RK cornea and conform to its irregular shape — peaks, valleys, and all. The resulting vision is compromised by the same surface aberrations that cause your halos and blur. There is no prescription powerful enough to fix an irregular optical surface that the lens itself is draped over.
Soft Lenses Make Dry Eye Worse
RK scars disrupt the normal tear film distribution across the cornea, leaving many patients already prone to dryness. Soft contact lenses absorb tears and reduce oxygen to the corneal surface. For RK patients, this creates a painful cycle: the lenses cause more dryness, which causes more irritation, which shortens wearing time — yet the patient keeps trying because they don't know there is an alternative.
Most Optometrists Haven't Seen RK
RK was abandoned in the mid-1990s when LASIK emerged. The vast majority of eye doctors practicing today completed their training after RK was no longer performed. They have read about RK corneas in textbooks. They have not examined thousands of them over decades. They prescribe soft lenses because that is what they know — not because it is the best option.
What Most RK Patients Don't Know
Scleral contact lenses are a medical-grade specialty lens specifically designed for irregular corneas like yours. They have been available for decades. They are covered by medical insurance when medically necessary. And they solve all three problems — night halos, daily vision fluctuation, and dry eye — in a single solution. Most RK patients have simply never been told they exist.
Find Out If Sclerals Are Right for YouWhat RK Did to Your Cornea
Radial Keratotomy used micro-surgical cuts radiating outward from the center of the cornea — like spokes on a wheel. By weakening the peripheral cornea, the procedure caused the central cornea to flatten, reducing nearsightedness. For many patients in the 1980s, it worked remarkably well initially.
The problem is structural. Those cuts are permanent scars that never regain the tensile strength of the original cornea. Over years and decades, the incisions continue to gape — slowly, imperceptibly, but consistently. As the peripheral cornea stretches slightly outward, the central cornea flattens further than intended. The result: a prescription that began as myopia (nearsightedness) shifts progressively toward hyperopia (farsightedness). Most RK patients are now in their 50s, 60s, and 70s — and many are significantly farsighted even though they were once very nearsighted.
The changing corneal shape also creates irregular astigmatism that glasses cannot fully correct. This is not a glasses prescription problem. It is a corneal shape problem. Standard corrective lenses sit over an irregular surface and cannot compensate for the irregularity. That is why many RK patients find their glasses "almost right" but never quite sufficient.
Finally, there is a safety consideration that every RK patient must understand: the incision lines are permanently weak. Any significant blunt trauma to the eye — from a sports injury, a car airbag deployment, or a fall — can cause the cornea to rupture along the old incision lines. This is not theoretical. We have seen RK ruptures in our practice over 35 years. Eye protection in all physical activity is non-negotiable for RK patients.
Problems RK Patients Face Decades Later
Hyperopic Shift
You were nearsighted before RK. Now you're farsighted — and getting worse each year. New glasses prescriptions are needed frequently. Reading glasses appear earlier than your peers.
Diurnal Fluctuation
Vision is blurry in the morning and improves through the afternoon. It's not your glasses — it's your cornea physically changing shape as the day progresses.
Irregular Astigmatism
RK incisions don't heal symmetrically. The resulting corneal irregularity creates a type of astigmatism that glasses can never fully correct — only specialty contact lenses can.
Rupture Risk
Critical safety warning: RK incisions are permanently structurally weak. Any significant blunt eye trauma — a ball, an elbow, an airbag — can rupture the cornea along the old incisions. Always wear polycarbonate protective eyewear for sports.
Scleral Lenses Solve All Three RK Problems in One
One lens. Three solutions. Night halos, daily vision shifts, and chronic dry eye from soft lenses — all addressed by the same specialty lens system.
Problem 1: Halos at Night
Scleral lenses vault over every incision scar. Light enters through a perfectly smooth outer surface. Halos and starbursts diminish dramatically or disappear entirely — most patients notice the difference the first night.
Problem 2: Vision That Shifts All Day
Scleral lenses correct your vision optically. It doesn't matter whether your cornea is at its morning shape or afternoon shape — the lens provides the same clear vision from the moment you put it in until you take it out at night.
Problem 3: Dry Eye from Soft Contacts
The scleral lens fills with preservative-free saline before you insert it. Your cornea is bathed in moisture all day. The cycle of soft-lens-induced dryness, irritation, and shortened wear time ends completely.
Scleral Contact Lenses
Scleral lenses are large-diameter gas-permeable lenses that vault entirely over the RK incisions, resting on the white of the eye (sclera) instead. They create a perfectly smooth optical dome of preservative-free saline over your irregular cornea. This fluid-lens system is the optical equivalent of a brand-new corneal surface — one without scars, without incisions, and without irregularity.
The result: crisp, stable vision from morning to evening, dramatically reduced halos at night, and continuous corneal hydration that eliminates the dryness cycle from soft lenses. Many patients report it feels like having their best pre-surgery vision back for the first time in decades.
Scleral Ortho-K — Glasses-Free Days for RK Patients
For RK patients with residual myopia or hyperopic drift who want glasses-free daytime vision, reverse-geometry scleral designs can gently provide overnight correction. Worn only while sleeping, these lenses allow some RK patients to see clearly throughout the day without wearing any lens. Candidate selection is careful — RK corneas require custom fitting that accounts for the incision pattern — but for the right patient, scleral ortho-K provides an extraordinary quality-of-life improvement.
Why Soft Contact Lenses Are the Wrong Choice for Most RK Patients
Standard soft contact lenses drape over the RK incision pattern rather than correcting it. They cannot eliminate halos. They cannot smooth the optical surface. They absorb tears and worsen dry eye. If you are currently wearing soft lenses after RK and are not fully satisfied with your vision, night driving, or comfort — there is almost certainly a better option available to you.
Related Specialty Services
Doctor's Insight: RK Halos, Night Vision & Scleral Lenses
Direct Answers from Dr. Bonakdar
Why do I see halos and starbursts at night after RK — and can it be fixed?
RK incisions create irregular scarring that scatters light entering your eye, especially in low-light conditions when your pupil dilates past the incision lines. This is why night driving, headlights, and streetlights look like starbursts or halos. Glasses and soft contact lenses cannot fix this because they cannot neutralize the corneal irregularity. Scleral lenses completely bypass the problem — they vault over the scarred cornea and create a perfectly smooth optical surface. Most RK patients who switch to sclerals describe dramatic improvement in their night vision within the first week.
Why do soft contact lenses not work well for RK patients?
Soft contact lenses are flexible and drape over the shape of your cornea — which is exactly the problem. RK creates an irregular corneal surface with peaks and valleys at each incision site. A soft lens conforms to that irregularity rather than correcting it, so the optical quality remains poor. They also exacerbate dry eye by reducing oxygen to already-stressed corneal tissue. Scleral lenses are rigid and vault entirely over the irregular surface, filling the space with preservative-free saline. This liquid-lens optical system is why scleral lenses achieve what soft lenses cannot: sharp, stable, distortion-free vision throughout the entire day.
What causes my vision to be worse in the morning and better in the afternoon after RK?
This is diurnal variation — the hallmark of RK. Overnight, your eye's internal pressure is slightly higher, which pushes the RK incisions open further and flattens your cornea more. Morning vision is typically blurrier. As you're upright throughout the day and eye pressure normalizes, the incisions close slightly and vision improves. Scleral lenses bypass this entirely because they correct your vision optically regardless of what your cornea is doing at that moment. Same prescription, same clear vision, morning to night.
Why is dry eye worse with soft contacts after RK?
RK-altered corneas already have disrupted tear film dynamics due to scarring along the incision lines. Soft contact lenses absorb tears and reduce the oxygen supply to already-stressed corneal tissue, worsening dryness, irritation, and end-of-day discomfort. Scleral lenses solve this elegantly: the preservative-free saline reservoir between the lens and cornea keeps the ocular surface continuously bathed in moisture. Many patients who struggled with daily dryness from soft lenses find that scleral lenses feel comfortable all day long.
Can I get LASIK or PRK to fix my RK?
Most surgeons will not perform laser surgery on an RK cornea due to unpredictable outcomes and increased rupture risk. Scleral contact lenses achieve excellent vision — including elimination of halos and night vision problems — without any additional surgical risk to your already-compromised corneal structure.
Is it safe to play sports with RK?
Not without eye protection. RK incisions are permanently structurally weak. A significant blunt impact — a ball, an elbow, an airbag — can rupture the cornea along the old incisions. We strongly recommend polycarbonate sports eyewear. This is the most important safety message for all RK patients.
Dr. Alexander Bonakdar, O.D.
Dr. Bonakdar has managed RK patients since the procedure was at its peak in the 1980s and 1990s — decades of experience that few optometrists today can match. Most doctors in practice today completed their training after RK was already abandoned in favor of LASIK. They have read about RK corneas in textbooks. Dr. Bonakdar has examined thousands of them in clinical practice, charted their progression over years, and developed fitting protocols specifically for the unusual geometry that RK creates. If you have had RK, your eyes deserve a doctor who has seen this before.
RK Patients Who Found Relief
“I had RK in 1991 and by 2019 I was farsighted and couldn't get a glasses prescription that felt stable. My vision was different every morning. Dr. Bonakdar explained diurnal variation and fitted me with scleral lenses. For the first time in years my vision is the same all day. I wish I'd found him ten years earlier.”
— Patient, Santa Ana, CA — RK 1991, Scleral Lenses 2019
“Every other eye doctor I saw looked confused when I mentioned RK. Dr. Bonakdar immediately said ‘I know exactly what we're dealing with — I've been seeing these corneas for 35 years.’ That confidence alone was worth coming in. The sclerals gave me 20/20 for the first time since the 1990s.”
— Patient, Newport Beach, CA — RK 1988, Scleral Lenses 2022
Schedule Your RK Scleral Lens Evaluation
Tell us when you had RK, what you currently wear, and your biggest visual complaints — especially night vision and daily fluctuation. We'll schedule a comprehensive corneal mapping and in-office scleral lens trial so you can experience the difference before you commit.
You Shouldn't Have to Avoid Night Driving Because of a Surgery You Had 30 Years Ago.
Scleral lenses solve what soft contacts and glasses cannot: halos at night, vision that shifts during the day, and chronic dry eye. Thousands of RK patients don't know this option exists.
One appointment. One trial lens fitting. Most patients see the difference immediately.