A comparative study of ZZ with other methods in corneal topography guidance

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2000040936

Enrollment

Unknown

Registered

2020-12-16

Start date

2020-12-15

Completion date

Unknown

Last updated

2021-04-12

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

Conditions

Myopia

Interventions

ZZ vs. other methods: ZZ vs. other methods

Eligibility

Sex/Gender

All

Age

18 Years to 55 Years

Inclusion criteria

Inclusion criteria: Objective to collect the patients with myopia, hyperopia and astigmatism who voluntarily accepted the assisted personalized guided refractive surgery with automatic positioning tracking system. They were over 18 years old; the diopter was relatively stable; the cornea was transparent and healthy; there was no organic disease in the eye; the refractive medium was transparent and the color vision was normal.

Exclusion criteria

Exclusion criteria: The results showed that the best corrected visual acuity (BCVA) was less than 1.0.

Design outcomes

Primary

Measure	Time frame
Post astigmatism;	—

Countries

China

Contacts

Public ContactZhang Jun

Hangzhou MSK Eye Hospital

mskzj@sina.cn+86 18667046602

Outcome results

None listed

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