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Effect of coffee (caffeine) on tear formation.

To assess the effect of caffeine on tear production among Goan Population in the year 2023.

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
CTRI
Registry ID
CTRI/2023/03/050851
Enrollment
40
Registered
2023-03-20
Start date
Unknown
Completion date
Unknown
Last updated
2023-06-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

Intervention1: Nil.: Nil. Control Intervention1: Nil.: Nil.

Sponsors

Leeian Sweeni Cardozo
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: 1 Healthy individuals in age group between 18-50 years 2 Individuals who have not consumed caffeine in last 10-12 hours (in the form of tea/coffee/dark chocolate).

Exclusion criteria

Exclusion criteria: 1 Patients with any ocular pathology and infection. 2 Patients who has undergone cataract surgery or LASIK or any other. 3 Patients who have already consumed tea/coffee/dark chocolate ie items containing high caffeine in last 10-12 hours prior to the test. 4 Patients having any underlying disease or health issues

Design outcomes

Primary

MeasureTime frame
Tear production measured by schirmers test 1 in mm before caffeine consumption.Timepoint: 10 minutes before caffeine consumption.—

Secondary

MeasureTime frame
Tear production measured by schirmers test 1 measured in mm after caffeine consumption.Timepoint: 30 minutes after caffeine consumption.—

Countries

India

Contacts

Public ContactLeeian Sweeni Cardozo

Goa Medical College

optometristbharat@gmail.com7828980479

Outcome results

None listed

Source: CTRI (via WHO ICTRP) · Data processed: Feb 4, 2026