Cataract
Conditions
Interventions
Monofocal IOL group:None
Multi-focal IOL group:None
multi-focal Toric IOL group:None
Continuous range IOL group:None
Refractive rotationally asymmetric multifocal intraocular lens group:None
Triple-focus intraocular lens:None
Sponsors
Guangxi Zhuang Autonomous Region People's Hospital
Eligibility
Sex/Gender
All
Age
45 Years to 80 Years
Inclusion criteria
Inclusion criteria: Refer to the consensus of Chinese experts on the clinical application of astigmatism corrected intraocular lens (2017), the consensus of Chinese experts on the clinical application of multifocal intraocular lens (2019) and the literature. Inclusion criteria: 1.Age related cataract patients (50-80 years old); 2.Multifocal intraocular lens: (1) It is recommended that the patients with near fundus disease and near fundus disease have better visual acuity, and the patients with far fundus disease and no eye disease are preferred; (2) Kappa angle < 0.5 mm or kappa angle less than half the diameter of the central refractive optical region of MIOL; (3) General requirements: estimated postoperative astigmatism <= 1.00 D; 3.Astigmatism corrected intraocular lens: 0.75 D <= regular corneal astigmatism <= 3.0d; Cataract patients who are willing to take off the lens with far vision; 4.Multifocal astigmatism corrected intraocular lens; (1) Toric MIOL can be selected for patients with both postoperative expected astigmatism and full vision needs; (2) For patients who are expected to have large postoperative astigmatism and insist on MIOL implantation, MIOL can be selected carefully on the premise that the patient is aware of the operation risk, and the residual astigmatism can be corrected by corneal refractive surgery after operation. 5.It is suggested that the natural diameter of pupil under darkroom is 3.0 ~ 5.5 mm; 6. Axial length 22-26mm.
Exclusion criteria
Exclusion criteria: 1.Any disease that may affect visual quality except cataract may be glaucoma, chronic uveitis, age-related macular degeneration, diabetes retinopathy, optic nerve disease, etc. 2.Combined with eye diseases that may affect the stability of lens capsule, such as relaxation or slight disconnection of lens suspensory ligament, pseudocapsular stripping syndrome, etc; 3.Irregular astigmatism of cornea, such as corneal scar, corneal degeneration, keratoconus, etc; 4.Mydriasis insufficiency or iris relaxation syndrome; 5.Patients with high myopia may have an increased risk of IOL rotation due to the larger lens capsule; 6.Patients with known severe mental and psychological diseases; 7.The pursuit of postoperative visual quality is too high. Those who have surgery and postoperative complications, and those who cannot participate in follow-up.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Uncorrected visual acuity(UCVA);Best corrected visual acuity;MTF cut off;Through focus curve;Wave front aberration;Decentration; | — |
Countries
China
Contacts
Public ContactMin Li
The People's Hospital of Guangxi Zhuang Autonomous Region
Outcome results
None listed