Visual Quality Change of Eyes Implanted With Diffractive Multifocal Intraocular Lens After Cataract Surgery

Wenzhou Medical University

Status: Unknown

Conditions: Quality of Life; Dry Eye; Vision Disorders

Treatments: Other: Diffractive multifocal IOLs group

Study type: Interventional

Funder types: Other

Identifiers

NCT02234635

VQIOL-21

Details and patient eligibility

About

In this study, the investigators examined the subjective visual quality including LogMAR uncorrected distance visual acuity (UCDVA), best corrected distance visual acuity (BCDVA),uncorrected intermediate visual acuity (UCIVA), distance corrected intermediate visual acuity (DCIVA), uncorrected near visual acuity (UCNVA) ,distance corrected near visual acuity (DCNVA),using logMAR visual acuity chart,and the objective visual quality including Modulation Transfer Function (MTF), Strehl ratio(SR), objective scatter index (OSI), OQAS value (OV),and the tear-film quality dynamics including the tear break-up time and the tear-film OSI between the eyes with multifocal lens and monofocal lenses by optical quality analysis system (OQAS).

Full description

50 eyes of 50 cataract patients scheduled for phacoemulsification surgery were recruited, the multifocal group (25 eyes) ，were implantation with Tecnis® ZMB00；and the monofocal group (25 eyes) were implantation with Tecnis® ZCB00.

Methods: All eyes were examined by logMAR visual acuity chart and Optical quality analysis system (OQAS) at 1 week, 1 month, 3 month, 6 month,12 month after surgery for the subjective and objective visual quality Change during the first year.

Measures:Subjective and objective visual quality were evaluated.Tear-film quality dynamicswere evaluated.

Enrollment: 50 estimated patients

Sex: All

Ages: 50 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Eyes with an axial length of 22.00 to 25.00 mm with age-related cataract.

Exclusion criteria

• Preoperative exclusion criteria included diabetes, history of ocular surgery or inflammation.
• Patients who could not be available for follow-up.

Trial design

Primary purpose: Treatment

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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50 participants in 2 patient groups

monofocal IOLs group

Other group

Description:

monofocal IOLs group were implantation with Tecnis® ZCB00

Treatment:

Other: Diffractive multifocal IOLs group

Diffractive multifocal IOLs group

Active Comparator group

Description:

Diffractive multifocal IOLs group were implantation with Tecnis® ZMB00

Treatment:

Other: Diffractive multifocal IOLs group