Visual Performance of Functional Intraocular Lenses in Cataracts

Eye & ENT Hospital of Fudan University

Status

Active, not recruiting

Conditions

Cataract

High Myopia

Treatments

Device: trifocal intraocular lens

Study type

Interventional

Funder types

Other

Identifiers

NCT05581888

Functional IOLs in cataracts

Details and patient eligibility

About

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.

Full description

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.

Enrollment

62 estimated patients

Sex

All

Ages

21+ years old

Volunteers

No Healthy Volunteers

Inclusion criteria

required binocular cataract extraction
age > 21 years
length of optic axis > 26 mm

Exclusion criteria

irregular corneal astigmatism > 0.3 um;
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