Macular disease
Conditions
Interventions
Test group:phacovitrectomy + posterior capsulotomy
control group:Perform two combined operations (cataract extraction + intraocular lens implantation + vitrectomy)
Sponsors
Beijing Tongren Hospital, Capital Medical University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. The eye axis is between 21.0mm and 27mm, and the postoperative corrected visual acuity is >=0.3 (logMAR visual acuity >=0.3 logarithm minimum viewing angle). Each patient is only included in one eye for the study. If the patient has undergone surgery in both eyes, the postoperative visual acuity If the visual acuity is not equal, select the eye with better postoperative vision, and select the first eye if the visual acuity is equal; 2. And each included patient needs to complete all inspection items before and 3 months after surgery.
Exclusion criteria
Exclusion criteria: Corneal astigmatism >=3.0D, previous eye surgery, eye trauma, keratopathy, other retinal diseases affecting vision (such as retinitis pigmentosa, retinal detachment, etc.), intraoperative and postoperative complications (such as intraoperative posterior lens capsule) rupture and uncontrolled high intraocular pressure after surgery, etc.), ocular inflammation (such as uveitis, etc.).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Mean absolute error;median absolute error; | — |
Secondary
| Measure | Time frame |
|---|---|
| Refractive prediction error;Arithmetic mean error;standard deviation;Percentage of eyes with refractive prediction error within ±0.25, 0.50, ±1.00D, and ±2.00 diopters (D); | — |
Countries
China
Contacts
Public ContactLiu Wu
Beijing Tongren Hospital
Outcome results
None listed