Using Psychophysics Methods to Investigate Sensory Dominance After Cataract Surgery

Wenzhou Medical University

Status: Active, not recruiting

Conditions: Cataract

Study type: Observational

Funder types: Other

Identifiers

NCT06751342

psychophysical methods

Details and patient eligibility

About

Using Psychophysics Methods for Quantitative Assessment of Sensory Binocular Imbalance After Cataract Surgery

Full description

Using binocular phase combination paradigms and binocular rivalry paradigms to quantitatively assess the degree of sensory binocular imbalance in patients following cataract surgery, investigating the relationship between unilateral and bilateral cataracts in children and varying severities of cataracts in adults with respect to sensory ocular dominance, and forecasting the postoperative quality of life for patients.

Enrollment: 96 estimated patients

Sex: All

Ages: 6 to 90 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

1. Ages between 6 and 90 years old, and the individual or legal guardian is capable of understanding and voluntarily signing an informed consent form;
2. No history of ocular trauma or intraocular surgery, no physical or medical treatments have been undergone, and the clinical diagnosis in the medical records is age-related, congenital, or developmental cataract patients;
3. Best-corrected visual acuity in both eyes is greater than 0.8 before the study, fusion ability is normal as checked by Worth's 4-dot test, and at least 1 month has passed since the last surgery;
4. Good communication skills and the ability to understand and grasp the trial;
5. No significant contraindications to surgery found in preoperative systemic and ocular examinations.

Exclusion criteria

1. Patients with traumatic or complex cataracts;
2. Those diagnosed with glaucoma before or after surgery;
3. Individuals with a history of intraocular surgery (such as vitrectomy) or laser treatment;
4. Exclude those with severe ocular comorbidities (including microphthalmia, aphakia, anterior segment dysgenesis, uveitis, optic nerve dysplasia, retinopathy of prematurity, congenital glaucoma, etc.) and severe systemic comorbidities (including syndromes affecting connective tissue function, such as Marfan syndrome, homocystinuria, or Down syndrome, severe birth defects, and epilepsy);
5. Any systemic diseases related to the eyes, such as rheumatic immune diseases;
6. Those with surgical records indicating any severe intraoperative complications during cataract surgery;
7. Individuals who cannot cooperate with the examination.

Trial design

96 participants in 6 patient groups

Subjects with Unilateral Congenital Cataract Undergoing Surgery

Subjects with Bilateral Congenital Cataract Undergoing Surgery

Control Group of Children

Subjects with Comparable Degrees of Bilateral Age-Related Cataract

Subjects with Different Degrees of Bilateral Age-Related Cataracts

Subjects with Shallow Anterior Chambers in Both Eyes