Status:
COMPLETED
Effect of Caffeine on Ocular Circulation in High Myopes
Lead Sponsor:
The Hong Kong Polytechnic University
Conditions:
High Myopia
Choroid
Eligibility:
All Genders
20-49 years
Phase:
NA
Brief Summary
To investigate the effect of caffeine on ocular circulation by using Optical Coherence Tomography and Optical Coherence Tomography Angiography. This study will evaluate blood supply to the inner and o...
Detailed Description
Caffeine could cause vasoconstriction. Previous studies revealed a reduction of retinal blood vessels diameter, a decrease in macular blood flow, and a decrease in blood velocity of optic nerve. Resea...
Eligibility Criteria
Inclusion
- Refractive error should be at least -6 Diopters or lower (spherical equivalent)
- Best corrected visual acuity of at least 6/6
- Non-smoker
Exclusion
- \- Diagnosed with any ocular diseases and systemic diseases
Key Trial Info
Start Date :
September 1 2017
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
December 31 2019
Estimated Enrollment :
18 Patients enrolled
Trial Details
Trial ID
NCT03294967
Start Date
September 1 2017
End Date
December 31 2019
Last Update
July 29 2020
Active Locations (1)
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1
School of optometry
Hong Kong, Hong Kong