NCT07376005

Effects of Acute Sugar Intake on Choroidal Thickness

• Status: Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 47 (estimated)
• Sponsor: Southern College of Optometry · Academic / Other
• Sex: All
• Age: 21 Years – 35 Years
• Healthy volunteers: Accepted

Summary

This study aims to bridge that gap by investigating how acute sugar intake influences choroidal thickness.

Detailed description

This investigation will be a prospective, repeated-measures study. All subjects will arrive fasted and will be asked not to consume any outside food or beverages during the three-hour study period, and will be asked to abstain from caffeine intake for 12 hours before participation. A baseline OCT scan of the macula of the right eye will be performed using the Heidelberg Spectralis OCT system. Participants will then consume 30 grams of sugar in the form of glucose tablets. Macular OCT scans of the right eye will be repeated every 30 minutes for 3 hours following sugar consumption.

Conditions

• Choroid

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	Oral glucose	Participants will consume 30 grams of sugar in the form of glucose tablets.

Timeline

• Start date: 2026-01-01
• Primary completion: 2026-05-01
• Completion: 2026-05-01
• First posted: 2026-01-29
• Last updated: 2026-01-29

Locations

1 site across 1 country: United States