Eye math put to the test: can any formula predict the perfect lens for extreme eyes?

NCT ID NCT07724795

Not yet recruiting Knowledge-focused Sponsor: Vienna Hospital Association Source: ClinicalTrials.gov ↗

First seen Jul 24, 2026 · Last updated Jul 24, 2026

Summary

This study checks how accurately eight different formulas predict the lens power needed for people with very short or very long eyes after cataract surgery. Researchers will measure the actual vision result and compare it to what each formula predicted. The goal is to find which formula is most reliable for these uncommon eye shapes, where choosing the right lens is especially tricky.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

What this could lead to: If successful, this could help surgeons choose the most accurate lens power formula for people with unusually short or long eyes, improving vision after cataract surgery.
What could go wrong: This is an observational study, not a treatment trial, so it won't directly change care yet. Results may not apply to all lens types or surgical techniques.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

Pseudophakia refractive error

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

PSEUDOPHAKIA REFRACTIVE ERROR

Contacts and locations

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Study contacts

Contact

Phone: •••-•••-•••• Email: •••••@•••••

Locations

Klinik Hietzing, Augenabteilung

Vienna, State of Vienna, 1130, Austria

Contact Phone: •••-•••-•••• Email: •••••@•••••

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