Factors Influencing Nocturnal Symptoms After Refractive Surgery.

Nanchang University

Status: Active, not recruiting

Conditions: Visual Quality; Refractive Surgery

Treatments: Procedure: refractive surgery

Study type: Observational

Funder types: Other

Identifiers

NCT05658718

[2021] No. (113).

Details and patient eligibility

About

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.

Enrollment: 400 estimated patients

Sex: All

Ages: 18 to 45 years old

Volunteers: Accepts Healthy Volunteers

Inclusion and exclusion criteria

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.

Trial design

400 participants in 2 patient groups

glare group.

Description:

Patients subjectively complained about glare and Binoptometer examination showed poor visual quality in dark environments, and they were classified as the glare group.

Treatment:

Procedure: refractive surgery

non-glare group

Description:

The patients did not complain of glare and the Binoptometer examination showed good visual quality in a dark environment, and they were classified as the non-glare group.

Treatment:

Procedure: refractive surgery