Status:
ACTIVE_NOT_RECRUITING
Impact of Ultraviolet Radiation and Environmental Factors on Human Ocular Biomechanics
Lead Sponsor:
Tianjin Eye Hospital
Conditions:
Myopia
Eligibility:
All Genders
18-44 years
Brief Summary
This observational study aims to explore whether ultraviolet (UV) radiation and other environmental factors are associated with ocular biomechanical properties in healthy volunteers aged 18-44 years w...
Eligibility Criteria
Inclusion
- Inclusion Criteria
- Age between 18 and 44 years (based on WHO criteria);
- Spherical equivalent refraction (SER) ≤ 6.00 diopters;
- No other ocular diseases;
- No systemic diseases (e.g., diabetes, hypertension, cardiovascular diseases);
- No severe psychiatric or psychological disorders;
- No history of ocular surgery.
- Exclusion Criteria
- Severe psychiatric disorders;
- Individuals diagnosed with keratoconus, suspected keratoconus, or subclinical keratoconus (based on the Global Consensus on Keratoconus Diagnosis);
- Presence of other ocular diseases (e.g., glaucoma, corneal opacity, uveitis);
- History of intraocular or ocular surface surgeries;
- Presence of nystagmus or inability to cooperate with examinations;
- History of intraocular surgery;
- Presence of systemic diseases (e.g., diabetes, hypertension, cardiovascular diseases).
Exclusion
- Severe psychiatric disorders;
- Individuals diagnosed with keratoconus, suspected keratoconus, or subclinical keratoconus (based on the Global Consensus on Keratoconus Diagnosis);
- Presence of other ocular diseases (e.g., glaucoma, corneal opacity, uveitis);
- History of intraocular or ocular surface surgeries;
- Presence of nystagmus or inability to cooperate with examinations;
- History of intraocular surgery;
- Presence of systemic diseases (e.g., diabetes, hypertension, cardiovascular diseases).
Key Trial Info
Start Date :
January 1 2025
Trial Type :
OBSERVATIONAL
Allocation :
ESTIMATED
End Date :
October 1 2025
Estimated Enrollment :
3000 Patients enrolled
Trial Details
Trial ID
NCT06993077
Start Date
January 1 2025
End Date
October 1 2025
Last Update
May 28 2025
Active Locations (1)
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1
Tianjin Eye Hospital
China, Tianjin Municipality, China, 300000