FindTrial
Sign In

Study on visual quality and ocular surface condition after different refractive surgery

Study on visual quality and ocular surface condition after different refractive surgery

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR1900027341
Enrollment
Unknown
Registered
2019-11-09
Start date
2019-11-15
Completion date
Unknown
Last updated
2019-11-11

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

Conditions

Refractive surgery

Interventions

Trans-PRK:no
femto-LASIK:no

Sponsors

Tianjin Medical University Eye Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: (1) Aged from 18 to 39 years; (2) Refractive state basic stabilization time >= 2 years (the annual myopic diopter increase does not exceed 0.50 D); (3) Soft contact lens is worn for more than 1 week; RGP is stopped for more than 3 weeks; Orthokeratology is worn for 1-3 months. (4) Myopia degree = 1.0.

Exclusion criteria

Exclusion criteria: (1) Systemic connective tissue disease and autoimmune system disease; (2) Keratoconus and subclinical keratoconus; (3) Eye or eye appendage Active inflammation, infection; (4) Severe ocular surface diseases including dry eye syndrome, corneal endothelial malnutrition.

Design outcomes

Primary

MeasureTime frame
OQASII;Higher order aberration;—

Secondary

MeasureTime frame
Corneal biomechanics;Dry eye related examination;—

Countries

China

Contacts

Public ContactYue Huang

Tianjin Medical University Eye Hospital

1097813271@qq.com+86 15620662542

Outcome results

None listed

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