This is a prospective, multi-center, randomized comparative study. The purpose of the study is to evaluate and compare the postoperative visual outcomes and quality of vision of two diffractive trifocal intraocular lenses (IOLs) in patients with high myopic cataracts.
Binocular implantation of two types of trifocal IOLs was performed in patients with high myopic cataracts. Postoperative uncorrected distance (UNVA), intermediate (UIVA), near (UNVA), and best-corrected distance visual acuity (BCVA) were measured. Defocus curve, high-order aberrations, modulation transfer function curve, Strehl ratio and reading ability were compared between the two groups. The functional vision and incidence of photic phenomena were surveyed using questionnaires.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
62
Binocular implantation of two different trifocal intraocular lens in high myopic cataracts
Eye & ENT Hospital of Fudan University
Shanghai, Shanghai Municipality, China
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
MTF curves
Time frame: three months
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