Corvis ST Checks Corneal Strength (Rigidity) Using Only a Puff of Air

This technology is crucial to determine if your eyes are ready for procedures like LASIK or SMILE Pro. Here’s how it works.

How Can an Eye Exam Be Done Without Touching? How Does It Work?

Imagine having your eyes examined with no contact at all—just a gentle puff of air and a super-fast camera. It’s not magic, but a technology called Corvis ST, which has become the new standard for pre-operative eye assessments before LASIK or SMILE Pro.

What is Corvis ST?

Corvis ST is an instrument that examines the biomechanics of the cornea—its ability to withstand pressure and maintain its shape.

Think of the cornea as the front window of your eye. If this window is too flexible or weak, corrective procedures might pose risks. Corvis ST helps doctors determine if your cornea is:

• Strong enough?
• Too flexible?

How Does Corvis ST Work?

Picture yourself sitting calmly in front of the camera, then:

• Corvis ST directs a gentle puff of air at your eye.
• Your cornea moves slightly from this air pressure.
• A special camera inside the device captures an ultra-fast video (over 4,000 images per second!).

From this video, the device calculates:

• How fast your cornea returns to its original shape
• How much it bends
• How stiff or flexible your cornea is

The results show instantly through graphs and numerical data. The whole process takes less than 10 seconds and is completely painless.

Why Is This So Important Before LASIK or SMILE Pro?

Corrective procedures like LASIK or SMILE Pro reshape and thin the cornea to improve your vision. However, if your cornea is too thin or flexible, these procedures shouldn’t be performed.

With Corvis ST, doctors can confidently say:

• “It’s safe, you can proceed with LASIK or SMILE Pro.”
• Or “Not yet, your cornea isn’t suitable for LASIK or SMILE Pro.”

How Is This Different from a Regular Eye Exam?

A standard eye exam usually checks:

• Your lens prescription (minus and cylinder)
• Corneal thickness

But Corvis ST goes further by assessing:

• How your cornea will respond to LASIK or SMILE Pro
• Whether your cornea is at risk of future conditions like ectasia or keratoconus

Who Should Get Examined with Corvis ST?

Anyone considering:

• LASIK
• Presbyond
• SMILE Pro
• SMILE Pro Hyperopic
• PRK
• Or those with high astigmatism and family history of keratoconus

In Summary: A Smart Technology to Keep Your Eyes Safe

Corvis ST acts like a sophisticated detective tool that helps doctors decide if your eyes are ready for LASIK or SMILE Pro. It’s fast, safe, and crucial for preventing long-term risks. Your eyes are precious—don’t take risks without knowing their condition first.