Corneal Topography Test

What is Corneal Topography?

Topography literally means the study of the forms and features of land distribution. A corneal Topography is one in which we map the shape of the cornea (the front , transparent structure of the eye) to look for irregularities or abnormalities in its surface.

Who Needs a Corneal Topography?

A Corneal Topography is done to check for abnormal shape of the cornea. Corneal shape needs to be checked in the following situations

Before doing LASIK
It is most essential to do a corneal topography for Pre LASIK patients in order to check abnormal shape since LASIK will modify the shape of the cornea with the laser.
Before opting for Multifocal Cataract Surgery– this scan provides invaluable information as to whether the patient is fit for Multifocal Intraocular lenses in Cataract surgery.
Frequently changing spectacle power and High cylindrical power – where we want to rule out the presence of a corneal disorder called Keratoconus.
After a Corneal Transplant
Corneal scars post infections
Before contact lens trial

What Topography machine do we have at Jehan Eye Clinic?

Jehan Eye Clinic is equipped with the Tomey TMS 4N Topography system from Japan. Known for its resolution, accuracy and corneal coverage of over 60,000 data points on the cornea, this is additionally equipped with Fourier analysis and Keratoconus screening software.

What is corneal topography test?

Corneal Topography is a scan of the cornea which tells the ophthalmologist the shape of the cornea whether it is abnormal or if there is any damage.

What is the procedure for doing a Topography scan ?

This is a non invasive scan which takes place in the consultation room of the Doctor and taking the images lasts a few minutes only.

Corneal topography patient getting an eye scan

Dr Kareeshma Wadia routinely works with Topography scans of different machines eg. Pentacam, Sirius, Orbscan and is well versed with interpretation of each. To schedule an in-clinic appointment or teleconsultation, call us on +917045658586 or write to us at jehaneyeclinic@gmail.com

Frequently Asked Questions

What is a corneal topography test?

A corneal topography test is a non-invasive scan that maps the shape and surface of the cornea. It helps an ophthalmologist identify irregularities, abnormalities and corneal conditions.

Why is a corneal topography scan done?

A corneal topography scan is used to assess corneal shape before procedures such as LASIK and cataract surgery, and to evaluate conditions such as keratoconus, corneal scars and irregular astigmatism.

What does a corneal topography test detect?

It can detect irregularities in corneal shape, including patterns associated with keratoconus, astigmatism and corneal scarring. It can also provide detailed information about the corneal surface.

Can corneal topography detect keratoconus?

Yes, corneal topography is an important test for detecting and monitoring keratoconus. Serial topography scans can also help an eye specialist monitor changes in corneal shape over time.

Is corneal topography required before LASIK surgery?

Corneal topography is an important part of the pre-LASIK evaluation because it helps assess the shape and condition of the cornea before laser vision correction.

How is a corneal topography test performed?

Corneal topography is a non-invasive scan performed in the consultation room. The equipment captures images of the cornea to create a detailed map for the ophthalmologist to evaluate.

Is corneal topography test painful or safe?

No, corneal topography is a non-invasive and generally comfortable test that does not involve surgery or contact with the cornea. It is used routinely to assess corneal shape and health.

How long does a corneal topography test take?

A corneal topography scan is a quick test, with image capture taking only a few minutes. The ophthalmologist then reviews the scan to assess the corneal shape and identify any abnormalities.

How should I prepare for a corneal topography test?

Preparation can vary depending on the reason for the scan and whether you wear contact lenses. Your ophthalmologist will advise you if you need to discontinue contact lens use before the test.

Can corneal topography be used for contact lens fitting?

Yes, corneal topography can help measure the shape and curvature of the cornea, making it useful when evaluating patients for contact lenses.

What do the results of a corneal topography test show?

The results provide a detailed map of the corneal surface, showing variations in curvature and elevation. These findings can help an ophthalmologist assess corneal irregularities and conditions such as keratoconus.

Is corneal thickness measured along with corneal topography?

Depending on the diagnostic system used, corneal imaging may provide information about thickness and elevation. Pachymetry is specifically used to measure corneal thickness and may be advised as part of a corneal evaluation.

Where can I get a corneal topography test in Mumbai?

You can get a corneal topography test in Mumbai at Jehan Eye Clinic, Vile Parle West. Jehan Eye Clinic uses the Tomey TMS 4N Topography system, and Dr. Kareeshma Wadia is experienced in interpreting corneal topography scans.

Jehan Eye Clinic is a center for skilled clinical excellence, and aims at being at par with the latest technology at all times. It is headed by Dr Kareeshma Wadia-Havewala, who is a specialist in Cataract, Cornea and Refractive Surgeries.

302, D-Square, Dadabhai Road,Opp. C.N.M. School, Vile Parle West,Mumbai - 400056.

+91 7045658586
jehaneyeclinic@gmail.com

Monday — 10am – 7pm
Tuesday — 10am – 7pm
Wednesday — 10am – 7pm
Thursday — 10am – 7pm
Friday —10am – 7pm