Cataract
Conditions
Interventions
A certain type of artificial lens:None
Sponsors
Eye Hospital, Wenzhou Medical University
Eligibility
Sex/Gender
All
Age
45 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Age >= 45 years, planned to undergo micro-incision phacoemulsification cataract extraction combined with IOL implantation; 2. The preoperative fundus can be directly observed and the imaging can be evaluated, and it is expected that the postoperative visual function will not be dominated by the fundus disease; 3. Corneal endothelial cell count >= 2000 cells/mm^2; 4. Corneal topography is regular, corneal astigmatism <= 1.00 D, and there is no keratoconus/suspicious manifestations; 5. Willing and able to complete the 1-month postoperative follow-up on time; 6. Signed the informed consent form
Exclusion criteria
Exclusion criteria: 1.Presence of any ocular disease that may affect postoperative visual quality or its assessment, including but not limited to: corneal pathologies, glaucoma, chronic or recurrent uveitis, macular diseases, retinal vascular diseases, optic neuropathies, amblyopia, history of ocular trauma, or previous intraocular surgery. 2.Presence of systemic diseases that may affect IOL stability, such as Marfan syndrome, uncontrolled diabetes mellitus, autoimmune diseases, etc.?; 3.Occurrence of intraoperative or postoperative complications that severely affect visual quality, such as posterior capsular rupture, IOL suspension, corneal endothelial decompensation, or persistent cystoid macular edema.?; 4.Inability to cooperate with and complete all required visual function examinations.?;
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Whole-eye wavefront aberrations (e.g., total HOAs, spherical aberration, coma) and MTF measured under scotopic conditions at various pupil diameters (3mm, 5mm) using the OPD-Scan III.;The BWFOM (Bilateral Wavefront Optical Metrology) integrated host-guest dual-eye wavefront optometry instrument measures the defocus curve and wavefront aberration of the eye being examined.;The AULCSF measured by qCSF;CSF visual acuity;The contrast sensitivity (CS) at spatial frequencies of 1, 1.5, 3, 6, 12, and 18 cpd; | — |
Secondary
| Measure | Time frame |
|---|---|
| Measured monocular UDVA, CDVA, UIVA (at 80 cm), UNVA (at 40 cm), and subjective refraction.;The postoperative tilt angle (°) and eccentricity (mm) measured by CASIA2 swept-source anterior segment optical coherence tomography;Catquest-9SF subjective visual quality questionnaire score; | — |
Countries
China
Contacts
Public ContactChang Pingjun
Wenzhou Medical University Affiliated Eye and Vision Hospital
Outcome results
None listed