Corneal Topography - Already Included in Your Pentacam Scan
Corneal Topography is a detailed, colour-coded map of your cornea's surface curvature, used to detect keratoconus and astigmatism and to plan LASIK. At Save Sight Centre, you don't need to book this separately - it's generated automatically as part of your Pentacam scan, at the same ₹2,000, with no extra charge.
Illustrative corneal topography map - colours represent surface curvature, from flatter (blue) to steeper (orange/red) zones.
What Is a Corneal Topography Test?
A quick, layman's explanation before your visit.
Why Is a Corneal Topography Test Performed?
Save Sight Centre uses corneal topography data for:
Early keratoconus detectionCatches inferior steepening and asymmetry patterns years before symptoms appear.
Quantifying astigmatismMeasures exactly how irregular your corneal curvature is, guiding correction.
LASIK, PRK, or SMILE candidacyConfirms your cornea is regular and stable enough for safe refractive surgery.
Custom contact lens fittingEspecially important for irregular corneas or high astigmatism.
Post-surgical monitoringTracks corneal shape recovery and stability after LASIK or other procedures.
Corneal scarring assessmentIdentifies surface irregularities from past trauma, infection, or surgery.
Can Corneal Topography Diagnose Early Keratoconus?
Yes - this is one of its most valuable clinical uses.
How Is the Corneal Topography Test Done?
Since it's captured within your Pentacam scan, this follows the same three phases.
Preparation
- Remove soft lenses 24hrs / RGP lenses 1-2 weeks before
- Share your ocular history - dry eye, surgeries, infections
- No anaesthesia or drops needed
Imaging
- Chin and forehead rest against the device
- Focus on a central fixation light
- Camera captures your corneal surface in seconds
Results
- Colour-coded maps are generated instantly
- No downtime - resume normal activities right away
- Doctor explains your maps the same day
How Do I Interpret My Corneal Topography Results?
Here's the difference between a normal and an abnormal map.
Normal Result
Symmetric, evenly spaced colour zones with no localised steepening - keratometry values fall within 41-45 D.
Abnormal Result
An off-centre "hot zone" of steepening (often inferior) with asymmetry - a classic pattern doctors look for in keratoconus.
These are illustrative examples. Save Sight Centre's doctors interpret your specific map, along with indices like Kmax and surface asymmetry, in the context of your full eye exam.
Corneal Topography vs Pentacam - Why It's Already Included
Corneal topography specifically refers to mapping your cornea's front-surface curvature. A Pentacam scan captures that same data as one part of a larger, single-sitting scan using Scheimpflug imaging technology.
Since the same device and same few seconds of imaging produce both, Save Sight Centre never charges for corneal topography on top of a Pentacam scan - it would mean billing twice for one scan.
What Are the Risks and Side Effects of Corneal Topography?
This is one of the gentlest, lowest-risk tests in eye care.
No Contact, No Pain
Nothing touches your eye - only light is used to capture the corneal surface.
Brief Glare Only
Some patients notice temporary light sensitivity from the imaging light, gone within moments.
No Drops Required
No dilation or anaesthesia needed, so there's zero drug-reaction risk.
Pre-Test Check
Active infections or severe dry eye may need addressing first - Save Sight Centre will advise if needed.
What Are the Alternatives to Corneal Topography?
Save Sight Centre may use these when a different view of the eye is needed.
OCT
Best for detailed, cross-sectional views of corneal layers - useful for oedema or stromal opacity.
Wavefront Aberrometry
Measures optical aberrations for customised, wavefront-guided LASIK or PRK planning.
Keratometry
A quicker, more basic curvature check - used for routine contact lens fitting or IOL power calculation.
How Much Does a Corneal Topography Cost in Delhi?
Corneal topography does not carry a separate price - it's built into your Pentacam scan.
| Doctor | Consultation Includes | Fee |
|---|---|---|
| Pentacam Scan (includes Corneal Topography) | 3D corneal map, curvature & topography data + specialist review | ₹2,000 |
Why Choose Save Sight Centre for Corneal Topography?
For over 15 years, our team in Adarsh Nagar has relied on corneal topography data to catch keratoconus and irregular astigmatism early - and to confirm, with real structural evidence, that a cornea is genuinely ready for LASIK.
We've mapped the corneas of thousands of patients across Delhi NCR, so our doctors read subtle curvature patterns with the kind of experience that comes only from volume - and never bill you twice for data captured in a single scan.
See Dr. Rajeev Jain's full profile →
See Dr. Shuchi Gupta's full profile →
Frequently Asked Questions About Corneal Topography
Straight answers to the most common questions our patients search for.
No. At Save Sight Centre, corneal topography is generated automatically as part of your Pentacam scan - there's no separate appointment, extra imaging session, or additional charge required.
No, corneal topography is completely painless. It's a non-contact test that uses only light - nothing touches your eye, and no drops or dilation are required.
The image capture itself takes just a few seconds per eye as part of your full Pentacam scan at Save Sight Centre, which takes about 10-15 minutes in total including positioning and results review.
Yes, corneal topography is one of the most effective tools for catching early keratoconus, revealing subtle inferior steepening and asymmetry patterns long before they would be visible on a standard eye exam. Save Sight Centre's Pentacam scan captures this data automatically.
Corneal topography refers specifically to mapping the front surface curvature of your cornea. A Pentacam scan captures this same topography data plus additional measurements, like posterior corneal elevation, thickness, and anterior chamber depth, in one combined scan at Save Sight Centre.
Yes, Save Sight Centre recommends removing soft contact lenses at least 24 hours beforehand, and rigid gas permeable lenses 1-2 weeks beforehand, so your cornea returns to its natural shape for an accurate map.
Corneal topography does not have a separate cost at Save Sight Centre - it's included as part of the ₹2,000 Pentacam scan, so you're not billed twice for what is effectively the same imaging session.
Yes, corneal topography data, captured through your Pentacam scan, is a core part of LASIK candidacy evaluation at Save Sight Centre, helping confirm your cornea is regular and stable enough for safe refractive surgery.
Corneal topography carries minimal risk. Some patients notice brief glare or light sensitivity from the imaging light, but this passes within moments and has no lasting effect on your eyes or vision.
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