Photic disturbance
Conditions
Interventions
Observation group:None
Sponsors
Hangzhou MSK Eye Hospital
Eligibility
Sex/Gender
All
Age
45 Years to 75 Years
Inclusion criteria
Inclusion criteria: 1. Aged 45 to 75 years old with no gender restriction; 2. Patients who have undergone trifocal intraocular lens implantation for no less than 3 months, with well-recovered operative eyes and no complications such as ocular infection or fundus lesions; 3. Corrected visual acuity at 100% contrast >=1.0; patients complain of poor functional vision after frame lens correction, accompanied by obvious photic disturbance symptoms including glare, halo, and diplopia that interfere with daily life; 4. Presenting abnormal results in total eye higher-order aberration examination, indicating insufficient focal concentration; 5. Patients voluntarily participate in this study, sign informed consent forms, and are able to cooperate with complete follow-up visits and all examinations including visual acuity tests at 100%, 80%, and 40% contrast levels.
Exclusion criteria
Exclusion criteria: 1. Insufficient corneal thickness (central corneal thickness <480 µm) and intolerance to corneal refractive surgery; 2. Presence of other ocular diseases such as corneal lesions, glaucoma, uveitis, and retinopathy that may affect the results of visual quality examination; 3. Systemic diseases including diabetes mellitus, autoimmune diseases, and other disorders that may interfere with ocular recovery; 4. Previous history of corneal surgery or ocular trauma; 5. Subjects unable to cooperate with subjective and objective examinations and follow-up visits.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| vision; | — |
Secondary
| Measure | Time frame |
|---|---|
| high-order aberrations;Evaluation of Photopic Disturbance Symptoms; | — |
Countries
China
Contacts
Public ContactZhang Jun
Hangzhou MSK Eye Hospital
Outcome results
None listed