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Effect of aging on binocular visual functions and the comparison of different corrections

Effect of aging on binocular visual functions and the comparison of different corrections

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2400079940
Enrollment
Unknown
Registered
2024-01-16
Start date
2023-05-08
Completion date
Unknown
Last updated
2024-01-22

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

Conditions

presbyopia

Interventions

single vision spectacles group:give near addition, single vision spectacle
progressive addition spectacles group:give progressive addition spectacles
control group:N/A

Sponsors

West China Hospital, Sichuan University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
55 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1) Age 55 to 70 2) Both far and near corrected vision are normal (?LogMAR 0.1) Second Stage: 3) The adjustment and binocular vision function were normal for the corresponding age group.

Exclusion criteria

Exclusion criteria: 1) Age-related macular disease, moderate to severe cataract and other organic diseases of the eye 2) strabismus and amblyopia 3) anisometropia (equivalent globular degree =1.00D) or high myopia 4) Mental disease

Design outcomes

Primary

MeasureTime frame
monocular contrast threshold;binocular contrast threshold;binocular summation;binocular suppression;binocular eye imbalance;stereopsis acuity;

Secondary

MeasureTime frame
Monocular/Binocular visual acuity;reading speed;reading accuracy ;Scores of near visual functional correlation questionnaire;

Countries

China

Contacts

Public ContactYutong Song

West China Hospital

ytsong@scu.edu.cn+86 136 7908 6788

Outcome results

None listed

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