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.
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."
Study Type
OBSERVATIONAL
Enrollment
20,000
uncorrected distance visual acuity (UDVA)
uncorrected visual acuity at 5 m
Time frame: one year
best corrected distance visual acuity (BCVA)
corrected visual acuity at 5 m
Time frame: one year
uncorrected near visual acuity (UNVA)
uncorrected visual acuity at 40 cm
Time frame: one year
uncorrected intermediate visual acuity (UIVA)
uncorrected visual acuity at 60 cm
Time frame: one year
HOAs
high order aberrations such as coma
Time frame: three months
Strehl Ratio
The derivative of point spread function (PSF)
Time frame: three months
objective visual quality
The modulation transfer function (MTF) curve
Time frame: three months
contrast sensitivity
Contrast sensitivity were obtained from the Functional Vision Analyzer
Time frame: three months
visual functions
Visual functions were obtained from the OCULUS Binoptometer 4P
Time frame: three months
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
IOL condition
IOL condition were obtained from the wavefront mode of the OPD-Scan III aberrometer.
Time frame: three months
subjective satisfaction
Satisfaction Questionnaire
Time frame: three years
photic phenomena
Questionnaire of photic phenomena
Time frame: three years