Investigating caffeine's role in preventing cataracts

The Impact of Caffeine Consumption on Preventing Cataract

Observational Vienna Institute for Research in Ocular Surgery · NCT05194696

This study is trying to see if drinking more caffeine can help prevent cataracts in people by looking at the habits of 6,000 patients over time.

Quick facts

Study typeObservational
Enrollment12000 (estimated)
Ages21 Years to 105 Years
SexAll
SponsorVienna Institute for Research in Ocular Surgery Academic / other
Locations1 site (Vienna)
Trial IDNCT05194696 on ClinicalTrials.gov

What this trial studies

This observational study examines the effect of regular caffeine consumption on delaying the onset of cataracts. It aims to gather data from 6000 patients, analyzing their caffeine intake through a detailed questionnaire and assessing its correlation with cataract development. Previous studies have shown mixed results regarding caffeine's protective effects against cataracts, and this study seeks to clarify these findings by focusing on a large cohort over an extended period. The goal is to determine if increased caffeine consumption can significantly reduce the incidence of cataracts.

Who should consider this trial

Good fit: Ideal candidates for this study are individuals over the age of 21 who have been diagnosed with cataracts.

Not a fit: Patients under the age of 21 or those without cataracts will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a non-invasive method to delay cataract onset, potentially reducing the need for surgical interventions.

How similar studies have performed: While some studies have suggested a potential link between caffeine consumption and reduced cataract risk, the results have been inconsistent, making this investigation both relevant and necessary.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* age older than 21 years
* cataract

Exclusion Criteria:

- age younger than 21 years

Where this trial is running

Vienna

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions CataractCaffeine
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.