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Birth control pills could reshape your cornea, study suggests

NCT ID NCT07693673

Completed Knowledge-focused Sponsor: Elshimaa A.Mateen Source: ClinicalTrials.gov ↗

First seen Jul 09, 2026 · Last updated Jul 10, 2026 · Updated 1 time

Summary

This study looks at whether taking combined oral contraceptive pills changes the shape and optical quality of the cornea — the clear front part of the eye. Researchers will measure corneal curvature and irregularities in women aged 18-40 before they start the pill and again after one year. The goal is to see if hormonal contraception affects vision or eye health in ways that are not yet well understood.

What this could mean

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

Active substance
Combined oral contraceptive pills
What this could lead to
If changes are found, this could help eye doctors better understand how hormonal contraceptives affect vision and corneal health.
What could go wrong
This is a small observational study with only 40 participants. It may find no significant changes, and results may not apply to all women.

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.

corneal disorder refractive error

As listed by the trial registrant

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

CORNEA REFRACTION ERROR

Contacts and locations

Locations

  • Ophthalmology Department, Sohag University Hospital, Faculty of Medicine, Sohag University

    Sohag, Sohag Governorate, 82524, Egypt

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