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The impact of dark chocolate and milk chocolate on visual sensitivity and macular blood flow density.

The impact of dark chocolate and milk chocolate on visual sensitivity and macular blood flow density.

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2300069987
Enrollment
Unknown
Registered
2023-03-30
Start date
2023-03-31
Completion date
Unknown
Last updated
2023-05-29

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

Conditions

Healthy volunteers

Interventions

dark chocolate:72% Cacao Dark Chocolate 50 g
milk chocolate:milk chocolate 50 g

Sponsors

Eye Hospital, WMU Zhejiang Eye Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 50 Years

Inclusion criteria

Inclusion criteria: 1)Aged 18 to 50 years old (including boundary values), gender unrestricted; 2)Physically healthy without any other systemic acute or chronic diseases; 3)Corrected visual acuity of both eyes between 20/25 and 20/20 (logarithmic visual acuity chart 0.8-1.0); 4)Voluntarily participating in this study and able to sign an informed consent form.

Exclusion criteria

Exclusion criteria: 1)Participants with significantly opaque refractive media that affect fundus examination; 2)Participants with a history of or current ocular diseases that clearly affect visual acuity; 3)Participants with allergies to chocolate or milk or any of their ingredients; 4)Participants with high myopia over -6.0D or hyperopia over +2.0D; 5)Participants who are currently participating in other research studies; 6)Participants who are planning to conceive or currently trying to conceive; 7)Participants who are undergoing or planning to undergo artificial reproductive techniques; 8)Participants who are pregnant or breastfeeding; 9)Participants with any other systemic diseases such as tumors, hypertension, diabetes, connective tissue diseases, and systemic immune disorders.

Design outcomes

Primary

MeasureTime frame
Observe the short-term differences in the effects of two groups on visual sensitivity.;

Secondary

MeasureTime frame
To observe the difference in short-term effects between the two groups in terms of visual acuity and macular blood flow density;

Countries

China

Contacts

Public ContactZuhua Sun

Eye Hospital, WMU Zhejiang Eye Hospital

susan0402@163.com+86 13868400369

Outcome results

None listed

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