The Effect of Dosage of Caffeine on Intraocular Pressure

Status Unknown status

Clinical Trial Summary

The goal of the study is to determine the effect of different doses of caffeine on intraocular pressure. We hypothesized that higher dosage of caffeine would increase intraocular pressure more than lower doses.

Eligible subjects will be randomized into three groups:

1. group 1: intake of decaffeinated coffee

2. group 2: intake of coffee with lower caffeine dose

3. group 3: intake of coffee with higher caffeine dose

Intraocular pressure will be measured at 0, 30, 60 and 90 minutes after coffee intake.

Clinical Trial Description

decaffeinated coffee contains 0.5-2 mg of caffeine regular dose coffee contains 91.8 mg of caffeine high dose coffee contains 144 mg of caffeine

all three groups' intraocular pressure will be measured with the Goldmann applanation tonometer at 4 timepoints:

1. 0 minutes (baseline)

2. 30 minutes after intake

3. 60 minutes after intake

4. 90 minutes after intake ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT01793311
Study type	Interventional
Source	Chiang Mai University
Contact	Damrong Wiwatwongwana, M.D.
Phone	6653945512
Email	samseeha@hotmail.com
Status	Unknown status
Phase	N/A
Start date	February 2013
Completion date	March 2013

View Details

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