Refractive Surgery, Visual Quality
Conditions
Keywords
refractive surgery, glare, pupil, visual quality, Aberrations
Brief summary
By comparing the parameters of the two groups of patients with glare at night after refractive surgery and those without glare at night, the influence of preoperative related parameters on postoperative glare was analyzed.
Interventions
PROCEDURErefractive surgery
refractive surgery
Sponsors
Second Affiliated Hospital of Nanchang University
Study design
Observational model
OTHER
Time perspective
OTHER
Eligibility
Sex/Gender
ALL
Age
18 Years to 45 Years
Healthy volunteers
Yes
Inclusion criteria
： * Age ≥18 years old； * Stable diopter (diopter change less than 0.5D in the past 2 years); * Best corrected distance visual acuity (CDVA) of 1.0 or better； * Anterior chamber depth (ACD) ≥2.8 mm; * Corneal endothelial cell density (ECD) ≥ 2 000 cells/mm.
Exclusion criteria
* History of ocular trauma or surgery; * Suspected keratoconus; * Previous history of other ocular diseases such as corneal inflammation or edema, glaucoma, uveitis, retinal detachment, macular degeneration, cataract, amblyopia, etc.; * History of severe dry eye； * Patients with systemic diseases, such as hyperthyroidism or autoimmune diseases; or severe mental disorders, such as anxiety and depression.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Changes of diopter under bright and dark pupils. | Preoperative | Use OPDScan Ⅲ to measure the parameters of both eyes |
| objective visual quality. | Day 7 | Measurement of objective visual quality using Binopotometer. |
| subjective visual quality | Day 7 | Using visual quality questionnaire to evaluate patients' subjective visual quality. |
| ICL Vault | Day 7 | Measuring ICL vault with Pentacam |
Countries
China
Outcome results
None listed