Effects of Ginkgo (Gingko Biloba) on Retinal and Choroidal Ocular Tissue

Effects of Ginkgo (Gingko Biloba) on Retinal and Choroidal Ocular Tissue

The purpose of this study is to understand the effect of Ginkgo Biloba oral supplements on retinal and choroidal ocular tissue.

The study objectives are to:

1. assess the changes from pre- to post- oral supplementation on retinal and choroidal thickness and blood flow, retinal oxygen saturation, ocular perfusion pressure, and retinal function

Inclusion Criteria:

• Aged between 20 - 55 years, inclusive
• Good general and ocular health
• Corrected visual acuity of 20/40 or better
• No gingko biloba supplementation within the last 3 months

Exclusion Criteria:

• All significant ocular and any systemic disorders considered likely to affect the systemic or ocular vasculature
• History of ocular surgery, including refractive surgery
• Use of ocular medications
• Conditions where ginkgo supplementation is contraindicated
• Any eye or systemic disease that affect vision or refractive error
• Current smokers
• Subjects who are pregnant, breastfeeding, or planning conception