Refractive error
Conditions
Interventions
Astigmatism correction group (Self-before-and-after comparison):Astigmatism Correction
Astigmatism uncorrected group (self-before-and-after comparison):Uncorrected Astigmatism
Sponsors
Huzhou Center Hospital
Eligibility
Sex/Gender
All
Age
18 Years to 35 Years
Inclusion criteria
Inclusion criteria: Fifteen to twenty patients with regular astigmatism (cylinder power >= 0.50 D), aged 18–35 years, and with corrected visual acuity >= 1.0.
Exclusion criteria
Exclusion criteria: Keratoconus, active ocular surface diseases, amblyopia, strabismus, history of contact lens wear within the past 3 months (discontinuation of rigid lenses for 4 weeks and soft lenses for 2 weeks), history of refractive surgery, etc.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The contrast sensitivity thresholds of patients with astigmatism in different directions in eight spatial directions; | — |
Secondary
| Measure | Time frame |
|---|---|
| The change in contrast sensitivity before and after astigmatism correction; | — |
Countries
China
Contacts
Public ContactWang Yuanyuan
Huzhou Center Hospital
Outcome results
None listed