Can keratoconus be cured?

There is no cure that returns the cornea to normal, but progression can often be stabilised with corneal cross-linking in appropriate cases, and vision can be corrected with speciality lenses or transplantation. Many patients lead fully normal visual lives.

Does keratoconus cause blindness?

Keratoconus does not typically cause complete blindness. However, untreated advanced disease can cause severe visual impairment, which is why early detection and monitoring are important.

Can I have LASIK if I have keratoconus?

No. Laser vision correction removes corneal tissue and can worsen ectasia, so keratoconus — even suspected early forms — is a contraindication to LASIK. This is why pre-LASIK topography screening is so important.

Is keratoconus hereditary?

A genetic contribution exists and a family history raises risk, though many patients have no affected relatives. Screening close family members with topography can be reasonable.

How often should keratoconus be monitored?

Typically every 6–12 months with repeat topography/tomography; more frequently in younger patients or documented progressors, as advised by your specialist.

Keratoconus Specialist in Mumbai | Cross-Linking, Lenses & DALK

Keratoconus Specialist in Mumbai — specialist eye care at Sentra Clinic & Hospital, Mumbai — Specialist eye care at Sentra Clinic & Hospital, Malad East, Mumbai.

Quick Answer

Keratoconus is a progressive condition in which the cornea thins and bulges into a cone-like shape, causing irregular astigmatism, distorted vision and frequent changes in spectacle power. Early diagnosis with corneal topography matters: corneal cross-linking can help stabilise progression in appropriate cases, while speciality contact lenses and, for advanced disease, DALK transplantation restore vision.

What is keratoconus?

Keratoconus is an ectatic (weakening) disorder of the cornea. The normally dome-shaped cornea gradually thins and protrudes forward into an irregular cone. Because the cornea is the eye's main focusing surface, this irregularity scatters light and produces blurred, distorted and ghosted vision that ordinary glasses correct poorly.

The condition usually appears in the teens or early twenties and may progress over 10–20 years before naturally stabilising. Both eyes are typically affected, though often asymmetrically — one eye may be significantly worse.

Normal cornea vs keratoconus

A normal cornea has a smooth, evenly curved surface, like a section of a basketball. In keratoconus, a localised area thins and steepens, more like a small cone pushing outward. This irregular shape is what makes vision hard to correct with standard spectacles.

Symptoms of keratoconus

Spectacle power that keeps changing, sometimes every few months
Increasing astigmatism, often at an unusual axis
Blurry or distorted vision even with new glasses
Ghost images, halos or streaks around lights
Poor night vision and glare while driving
Eye strain; in some patients, itchy eyes and a habit of vigorous eye rubbing
In advanced disease, a sudden painful clouding (acute hydrops) from an internal corneal split

Who it affectsUsually begins in the teens–twenties; both eyes, often unequally.

Key testCorneal topography and tomography detect it early — before symptoms are obvious.

Main goal early onStabilise progression (cross-linking) and correct vision (lenses).

Advanced diseaseDALK transplantation may be considered when lenses fail.

What causes keratoconus? Risk factors

The exact cause is not fully understood; it is considered a combination of genetic predisposition and environmental factors. Important associations include:

Vigorous eye rubbing — the most consistently identified modifiable risk factor. Patients are strongly advised to avoid rubbing.
Allergies and atopy — allergic eye disease, asthma and eczema are frequently associated.
Family history — a proportion of patients have an affected relative; screening family members can be worthwhile.
Connective tissue and chromosomal conditions — associations exist with conditions such as Down syndrome.

How keratoconus is diagnosed

Early keratoconus can be invisible at the slit lamp; diagnosis relies on imaging:

Corneal topography — maps front-surface curvature and reveals characteristic asymmetric steepening. What topography shows.
Corneal tomography — evaluates both front and back surfaces plus thickness distribution; the most sensitive tool for early and subclinical disease.
Pachymetry — measures thickness at the thinnest point; essential for staging and cross-linking planning.
Refraction — documents the degree and stability of astigmatism over time.

Stages and progression

Keratoconus is broadly staged by corneal curvature (keratometry), thickness and scarring:

\n\n\n\n\n

Stage	Typical findings	Usual management
Early / subclinical	Map changes; vision often correctable with glasses	Monitoring; cross-linking if progression is documented
Moderate	Clear irregular astigmatism; glasses inadequate	Cross-linking to stabilise + rigid/scleral contact lenses for vision
Advanced	Severe thinning, apical scarring, contact lens intolerance	DALK or penetrating keratoplasty; hydrops managed medically first

Progression is confirmed by comparing maps over time — increasing steepness, thinning or rising astigmatism. Younger patients tend to progress faster and are monitored more closely.

Treatment options

Glasses

Adequate in early disease with mild, fairly regular astigmatism. Once the cornea becomes irregular, glasses cannot fully sharpen vision.

Speciality contact lenses

Rigid gas-permeable, hybrid and scleral lenses create a smooth new optical surface in front of the irregular cornea and can restore excellent functional vision for years. Scleral lenses vault the cornea entirely and are often the most comfortable for moderate–advanced disease.

Corneal cross-linking (CXL)

Riboflavin (vitamin B2) drops are applied to the cornea, which is then exposed to controlled ultraviolet-A light. This creates new bonds between collagen fibres, stiffening the cornea. CXL primarily aims to help stabilise progression in appropriate, documented-progressing cases — it is not a cure and does not reliably reverse the cone. Detailed cross-linking guide.

Ring segments and combined procedures

In selected mid-stage cases, intrastromal corneal ring segments may improve contact-lens tolerance and refraction. Suitability is case-specific and assessed individually.

Corneal transplantation for advanced keratoconus

When scarring or extreme thinning prevents useful vision with lenses, transplantation is considered. Because the patient's own endothelium is healthy in keratoconus, DALK — which replaces only the front layers — is often preferred over full-thickness transplant. About DALK · Transplant overview.

Living with keratoconus: practical guidance

Do not rub your eyes — treat allergy symptoms actively instead.
Attend scheduled map reviews; progression is measured, not guessed.
Protect lenses and follow hygiene instructions meticulously.
Seek urgent care for a sudden painful white-out of vision (possible hydrops).

Dr. Shraddha's approach to keratoconus

With fellowship training in cornea at LV Prasad Eye Institute, Dr. Shraddha stages keratoconus with topography, tomography and pachymetry before recommending any treatment, monitors progression objectively, and sequences care — stabilise first, then optimise vision, and transplant only when other options are exhausted. Consultations at Sentra Clinic & Hospital, Malad East.

Information on this page is for general education and does not replace an examination, diagnosis or personalised medical advice from a qualified eye-care professional.

Keratoconus Specialist in Mumbai