Cataract, Visual Quality
Conditions
Brief summary
This is a prospective, multi-center, randomized comparative study. The purpose of the study is to evaluate and compare the objective and subjective visual outcomes of different types of functional intraocular lenses (IOLs) in patients.
Detailed description
Analyzing the subjective and objective visual outcomes and related factors following the implantation of various types of intraocular lenses（bifocal, trifocal, extended depth of focus (EDOF), and astigmatism-correcting intraocular lenses), exploring the advantages, disadvantages, and suitable patient populations for different types of intraocular lenses, analyzing the factors affecting postoperative visual quality, and providing guidance to better assist patients with diverse needs in clinical settings, aiming to offer multidimensional postoperative visual quality.
Interventions
None listed
Sponsors
Eye & ENT Hospital of Fudan University
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* cataract * age \> 18 years
Exclusion criteria
* amblyopia; previous ocular surgery; * ocular pathologies such as diabetic retinopathy, macular degeneration, glaucoma with field defects; * requirements for further ocular surgery (other than Nd:YAG capsulotomy) or retinal laser treatments during the study
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| uncorrected distance visual acuity (UDVA) | one year | uncorrected visual acuity at 5 m |
| best corrected distance visual acuity (BCVA) | one year | corrected visual acuity at 5 m |
| uncorrected near visual acuity (UNVA) | one year | uncorrected visual acuity at 40 cm |
| uncorrected intermediate visual acuity (UIVA) | one year | uncorrected visual acuity at 60 cm |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| visual functions | three months | Visual functions were obtained from the OCULUS Binoptometer 4P |
| IOL condition | three months | IOL condition were obtained from the wavefront mode of the OPD-Scan III aberrometer. |
| HOAs | three months | high order aberrations such as coma |
| photic phenomena | three years | Questionnaire of photic phenomena |
| subjective satisfaction | three years | Satisfaction Questionnaire |
| Strehl Ratio | three months | The derivative of point spread function (PSF) |
| objective visual quality | three months | The modulation transfer function (MTF) curve |
| contrast sensitivity | three months | Contrast sensitivity were obtained from the Functional Vision Analyzer |
Contacts
Primary ContactJin Yang
Outcome results
None listed