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Influence of Cap Thickness on Posterior Corneal Elevation and Corneal Biomechanics in SMILE

Influence of Cap Thickness on Posterior Corneal Elevation and Corneal Biomechanics in SMILE

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR1900023173
Enrollment
Unknown
Registered
2019-05-15
Start date
2018-01-01
Completion date
Unknown
Last updated
2019-05-20

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

Conditions

myopia

Interventions

1:the corneal cap thickness of 110µm
2:the corneal cap thickness of 110µm

Sponsors

Shenyang Aier Eye Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 39 Years

Inclusion criteria

Inclusion criteria: 1. BCVA(best corrected distance visual acuity)=16/20; 2. Aged at least 18 years; 3. stable refraction for at least 2 year (no greater than 0.50D of myopic shift per year); 4. calculated residual stromal thickness greater than 280µm.

Exclusion criteria

Exclusion criteria: 1. The difference of spherical equivalent (SE) in both eyes of the same people was less than 0.5D; 2. The difference of central thickness of cornea in both eyes of the same people was less than 10µm; 3. Patients with keratoconus or other surgical contraindication.

Design outcomes

Primary

MeasureTime frame
visual acuity;refractive status;biomechanical parameters;posterior corneal elevation;—

Secondary

MeasureTime frame
Corneal Curvature;—

Countries

China

Contacts

Public ContactXuejun Fang

Aier School of Ophthalmology, Central South University

fangxuejun@vip.163.com+86 13840072423

Outcome results

None listed

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