Corneal Topography in Chicago, IL
At Ideal Family Eye Care, we use advanced corneal topography technology to create detailed, highly accurate maps of the cornea’s surface. This powerful diagnostic tool plays a critical role in detecting corneal irregularities, planning surgical procedures, fitting specialty contact lenses, and monitoring the progression of conditions such as keratoconus and astigmatism.
request an appointmentWhat Is Corneal Topography?
Corneal topography is a non-invasive, painless diagnostic imaging procedure that generates a detailed, color-coded map of the surface curvature of the cornea — the clear front surface of the eye. Using a computer-guided imaging system, the corneal topographer analyzes thousands of data points across the corneal surface to detect even subtle irregularities in its shape and curvature that would not be visible during a standard eye exam.
The resulting corneal map — displayed in a vivid, color-coded format similar to a geographic topographic map — gives our optometrists at Ideal Family Eye Care a comprehensive view of corneal health and allows for precise diagnosis, treatment planning, and ongoing monitoring.
When Is Corneal Topography Used?
Corneal topography is an essential diagnostic tool for a wide range of clinical applications at Ideal Family Eye Care, including:
- Keratoconus detection and monitoring: Corneal topography is the gold standard for detecting keratoconus in its earliest stages — even before clinical symptoms develop — and for tracking its rate of progression over time.
- Astigmatism evaluation: Topography provides precise measurements of corneal curvature irregularities that cause astigmatism, helping to guide corrective lens prescriptions.
- Orthokeratology (Ortho-K) fitting: Custom Ortho-K lenses require detailed corneal maps to ensure a precise and effective fit.
- Pre-surgical evaluation for LASIK and refractive surgery: Corneal topography is a mandatory assessment before any laser vision correction procedure to confirm the cornea is an appropriate shape and thickness for surgery.
- Post-surgical monitoring: After refractive surgery or corneal transplantation, topography helps monitor healing and detect any unexpected changes in corneal shape.
- Contact lens fitting: For patients requiring specialty rigid or scleral contact lenses, corneal topography ensures an accurate, comfortable fit.
What to Expect During a Corneal Topography Test
Corneal topography at Ideal Family Eye Care is completely painless and takes only a few minutes to complete. During the test, you will sit comfortably in front of the topographer and rest your chin and forehead against the device’s support. You’ll be asked to look at a central light inside a bowl-shaped illuminated target containing concentric rings. The device captures the reflection of these rings on your cornea and uses a sophisticated computer algorithm to calculate and map the curvature of your corneal surface in extraordinary detail. No eye drops or dilation are required.
To schedule a corneal topography evaluation at Ideal Family Eye Care in Chicago, IL , call us at (773) 774-2200 or book your appointment online today.
Frequently Asked Questions About Corneal Topography
What is corneal topography and why is it important?
Corneal topography is a non-invasive imaging test that creates a detailed map of the cornea’s surface shape and curvature. It is essential for detecting conditions like keratoconus and astigmatism, planning refractive surgery, fitting specialty contact lenses, and monitoring changes in corneal health over time.
Is corneal topography painful?
No. Corneal topography is completely painless and non-invasive. No eye drops, dilation, or physical contact with the eye is required. The test takes just a few minutes and is comfortable for virtually all patients.
Who needs a corneal topography test?
Corneal topography is recommended for patients who are being evaluated for LASIK or other refractive surgery, those with suspected or confirmed keratoconus, patients being fitted for Ortho-K lenses, and anyone with irregular astigmatism or unexplained visual disturbances.
How does corneal topography help detect keratoconus?
Corneal topography can detect the subtle cone-shaped corneal distortion that characterizes keratoconus in its very early stages — often before symptoms are noticeable. Early detection is critical because it allows for timely intervention to prevent further corneal thinning and vision loss.
Is corneal topography required before LASIK?
Yes. Corneal topography is a mandatory component of any pre-LASIK evaluation. It ensures your cornea is the right shape and thickness to safely undergo laser reshaping and helps identify any irregularities that could affect your surgical outcome.
How is corneal topography different from a standard eye exam?
A standard eye exam evaluates your visual acuity and overall eye health, but does not provide the detailed surface mapping of the cornea that topography offers. Corneal topography is a specialized diagnostic test that goes far deeper, providing thousands of data points about the exact shape and curvature of your corneal surface.
How do I schedule corneal topography at Ideal Family Eye Care?
Call Ideal Family Eye Care at (773) 774-2200 or use our online appointment form to book your corneal topography evaluation. Our team will let you know if this test is recommended based on your eye health history and vision needs.