Laser eye surgery showdown: which fix for nearsightedness is better?
NCT ID NCT06477081
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study compares two common laser eye surgeries—KLEx and FS-LASIK—for treating nearsightedness and astigmatism. Researchers will follow 80 adults aged 21 and older to see which procedure provides better vision without glasses and has fewer side effects. Both surgeries reshape the cornea, but KLEx does not require creating a flap, which may reduce certain risks.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
laser eye surgery (KLEx or FS-LASIK)
What this could lead to
If successful, this could show that one procedure is safer or more effective for correcting nearsightedness and astigmatism, helping patients and doctors choose the best option.
What could go wrong
This is a small, early-stage comparison study with only 80 participants. Results may not apply to everyone, and both procedures carry standard surgical risks like infection or under-correction.
Disclaimer
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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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
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Locations
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Instituto de Oftalmología Conde de Valenciana
Mexico City, Mexico City, 06800, Mexico