Anterior Sclera Thickness, CASIA2, Ciliary Muscle Thickness, Corneal Biomechanics
Conditions
Brief summary
Evaluation of the ciliary muscle thickness, area, and anterior chamber angle, as well as anterior sclera thickness in subjects, to investigate the relationship between these measurements and corneal biomechanics. Clarify whether aqueous humor displacement, anterior sclera, and ciliary muscles influence the assessment of in vivo corneal biomechanics.
Interventions
scleral and ciliary muscle thickness were obtained by Casia2, biomechanical parameters were obtained by Pentacam and Corvis ST
Sponsors
Tianjin Eye Hospital
Study design
Observational model
CASE_ONLY
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Healthy volunteers
Yes
Inclusion criteria
1. Best corrected visual acuity (BCVA) ≥ 20/20; 2. No other eye diseases except myopia and astigmatism; 3. The cornea was transparent, and there was no cloud or pannus;
Exclusion criteria
1. Corneal disease; 2. Ocular trauma; 3. Previous ocular surgery; 4. Any anterior segment diseases except cataract; 5. Patients were required to stop wearing soft contact lenses for at least 2 weeks and rigid contact lenses for at least 4 weeks before examination; 6. Pregnant and lactating women;
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| scleral and ciliary muscle thickness | one year | The thickness of scleral and ciliary muscle(Casia2, quantitative data through the utilization of its integrated ruler system) |
| biomechanical parameters | one year | The biomechanical parameters(Corvis ST, exporting the quality-assured csv files to analysis) |
Countries
China
Outcome results
None listed