Research on the validity and repeatability of an advanced device for measuring accommodation amplitude

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR2600117440

Enrollment

Unknown

Registered

2026-01-23

Start date

2024-07-15

Completion date

Unknown

Last updated

2026-01-27

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

Conditions

presbyopia9D00.3/Accommodative Disorder9D01 (ICD-11)

Interventions

Observation group:NA

Eligibility

Sex/Gender

All

Age

18 Years to 30 Years

Inclusion criteria

Inclusion criteria: 1. Age: 18 to 30 years old. 2. Best-corrected visual acuity (BCVA) of each eye is = 20/20. 3. Patients are capable and willing to follow the study protocol, as judged by the investigator. 4. Signed informed consent form.

Exclusion criteria

Exclusion criteria: 1. A history of ocular or systemic diseases that may affect the accommodation function. 2. Taking or using medications that may affect the accommodation function. 3. Presence of other ocular diseases such as ocular inflammation, strabismus, cataracts, glaucoma, etc. 4. Prior intraocular surgery. 5. Developmental delay or behaviors that may affect the testing.

Design outcomes

Primary

Measure	Time frame
accommodative amplitude;	—

Secondary

Measure	Time frame
Testing Time;	—

Countries

China

Contacts

Public ContactChen Jie

The Eye Hospital of Wenzhou Medical University

cj@eye.ac.cn+86 138 5772 1998

Outcome results

None listed

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