New nomogram may sharpen vision in keratoconus patients
NCT ID NCT07540208
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether a new surgical guide (the Alfonso nomogram) helps doctors place corneal ring implants more effectively in people with moderate keratoconus. Twenty-five adults aged 18–35 with progressive disease received the implant. Researchers will measure changes in vision, glasses prescription, and corneal shape.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Intrastromal corneal ring segment (Keraring) implantation
- What this could lead to
- If successful, this could provide a more reliable way to flatten the cornea and improve vision in people with moderate keratoconus.
- What could go wrong
- This is a small, early-stage study with only 25 participants, so results may not apply to everyone. The procedure carries risks like infection or implant displacement.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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TIBA Eye Center
Asyut, Asyut Governorate, 71515, Egypt
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