Keratoconus care in Greater Houston
Keratoconus Diagnosis, Monitoring & Vision Rehabilitation in Greater Houston
When glasses stop sharpening your vision and contact lenses will not sit comfortably, the cornea itself may be changing. We map it, follow it over time, and help you see as well as your eyes allow.
- Corneal mappingPentacam tomographer maps the front surface and the back of the cornea
- Not the same goalLenses improve vision. Cross-linking is a separate question about progression.
- DoctorDr. Anith Pillai: keratoconus and anterior segment disease
What keratoconus does to vision
The cornea is the clear front window of the eye, and it normally holds a smooth, dome-like curve. In keratoconus it gradually thins and steepens, bulging forward toward a cone. Light no longer focuses to a single point, so vision can look smeared, doubled or stretched, especially at night.
Many patients first notice that glasses prescriptions keep changing, that one eye is much worse than the other, or that standard contact lenses feel uncomfortable or will not sit well.
What patients often report
Blur that glasses cannot fully fix, ghosting, glare or halos around lights, and eye strain.
Why it matters early
The earlier a changing cornea is identified, the more options there are for monitoring and planning.
It is not a dry eye problem
Dry eye can coexist, but keratoconus is a change in corneal shape and needs corneal imaging to confirm.
Watch the film
Watch the keratoconus and scleral lens animated film
An animated overview of keratoconus, corneal shape changes and scleral lenses as a vision correction option.
An animated overview of keratoconus, corneal shape changes and scleral lenses as a vision correction option. The film opens in a fixed 1920 × 1080 composition fitted to this 16:9 frame.
How we look for it: corneal tomography
A regular eye chart cannot show corneal shape. Our keratoconus work relies on corneal mapping. Our practice uses the Pentacam tomographer, which maps the front surface of the eye and the back surface of the cornea. That back surface is where keratoconus first starts affecting the eye, which is why a front-surface map alone can miss early change.
History and symptoms
We ask about vision changes, prescription changes, contact lens comfort, eye rubbing, allergies and family history.
Examination
Your doctor examines the cornea and eye health, and measures how well you see with your best correction.
Corneal mapping
Corneal imaging is reviewed for thinning and steepening patterns. Your doctor explains what the maps show and what they do not.
A plan you understand
You leave knowing whether the cornea looks stable or suspicious, what your vision options are, and what to monitor.
Progression, monitoring and cross-linking
Keratoconus does not follow one timeline. In some people it stays mild; in others the cornea keeps changing. Because a single set of maps is a snapshot, doctors compare maps over time. Your office will tell you when to return for repeat imaging based on your exam. We do not set one schedule for everyone.
Vision correction and slowing progression are different goals. Glasses and contact lenses, including scleral lenses, improve how you see. They do not strengthen the cornea. Corneal cross-linking is a procedure that aims to stabilize a cornea that is changing.
If your maps show change, or if you are young and at higher risk, we discuss whether cross-linking evaluation is appropriate and, if so, refer you to a surgeon who provides it. Evolutionary Eye Care does not describe cross-linking as a service on this page. We keep managing your lenses and your eye health before and after.
Eye rubbing is widely discussed as a risk factor for corneal change. If you rub often, tell your doctor and do not wait for the next exam to ask about it.
Vision rehabilitation: from glasses to specialty lenses
The goal is the clearest, most comfortable vision your cornea allows, and it can change as the cornea does. Options your doctor may walk through, from simplest to most specialized:
Glasses
Can be enough early on. They correct the regular part of the error but not the irregular part.
Specialty contact lenses
Rigid and custom designs create a smoother optical surface than a soft lens drape can on an irregular cornea.
Scleral lenses
Large lenses that vault over the cornea and rest on the sclera, the white of the eye, leaving a tear-filled space beneath. See the scleral lens guide for the fitting process, care, and cost factors.
Lens after other procedures
Some patients with irregular corneas after surgery such as a corneal transplant or LASIK also use scleral lenses, as described in our service overview.
Dr. Anith Pillai specializes in specialty contact lenses and is a Fellow of the Scleral Lens Education Society, as described on our team page. Which services each office offers can vary, so ask when you call.
See scleral lenses in a patient story
This video from our practice shows how scleral lenses changed one patient's experience of astigmatism. It illustrates one person's result, not a promise of yours. Outcomes depend on your eyes, and your doctor determines whether the approach suits you.
Read the full scleral lens evaluation and fitting guide next.
Trusted patient resources
Independent, non-commercial information you can read before your visit:
These sites are not affiliated with Evolutionary Eye Care. They do not replace an examination.
Questions patients ask
What is keratoconus?
Keratoconus is a condition in which the cornea thins over time and bulges forward into a cone-like shape. It can make vision blurry or distorted, reduce comfort, and make traditional contact lenses hard to wear.
How is keratoconus diagnosed?
Diagnosis starts with a comprehensive eye exam and corneal imaging. Our offices describe using a Pentacam tomographer, which maps the front surface of the cornea and its back surface, where keratoconus first starts affecting the eye. Your doctor interprets the maps alongside your symptoms and exam findings.
Do scleral lenses stop keratoconus from getting worse?
No. Scleral lenses improve vision by vaulting over the irregular cornea and creating a smooth optical surface, but they do not treat the underlying thinning. If your corneal maps suggest the condition is changing, your doctor may discuss corneal cross-linking evaluation or a referral to a surgeon who performs it.
Does Evolutionary Eye Care perform corneal cross-linking?
This page does not describe cross-linking as a service of our offices. Where it is appropriate, we discuss evaluation and referral and continue to co-manage your vision correction. Ask your office what it can coordinate.
Can glasses correct keratoconus?
Glasses may help in early stages, but as the cornea becomes more irregular they often cannot fully sharpen vision. Specialty contact lenses, including scleral lenses, are commonly used when glasses fall short. Your doctor will recommend what fits your eyes.
Which office should I visit for keratoconus care?
Dr. Anith Pillai's special interests include keratoconus and anterior segment disease. Availability of specific testing and specialty lens services can differ by office, so contact Downtown Houston, Sugar Land or Webster before booking.
Offices in Greater Houston
Keratoconus care is coordinated at our three offices. Please confirm with your office which testing and specialty lens services it provides before you book. Also see Ortho-K and myopia control if a family member is nearsighted.
Questions about your own eyes?
Every exam is individual. Your office confirms suitability and likely benefits. Please confirm which testing and treatments are available at the office you choose.
Related: Scleral Lenses | Ortho-K | Downtown Houston | Sugar Land | Webster
