The Best Way to Improve the Near Visual Acuity After ZXR00 IOL Implantation

Yune Zhao

Status: Not yet enrolling

Conditions: Cataract; Near Vision

Study type: Observational

Funder types: Other

Identifiers

NCT05594537

ZXR00-zyy

Details and patient eligibility

About

The Best Way to Improve the Near Visual Acuity After ZXR00 IOL Implantation

Full description

ZXR00 intraocular lens is a new type of IOL that can achieve good continuous visual acuity. Its characteristic is to improve the distance and intermedia visual acuity and maintain good visual quality while sacrificing the near visual acuity. Previous studies report that there are mainly two ways to improve the near visual acuity of ZXR00：1.Bilateral implantation of ZXR00 with micromonovision. 2. Combined Implantation of ZXR00 and multifocal IOLs.This study aim to explore which is the best way to improve the near visual acuity after ZXR00 IOL implantation.

Enrollment: 30 estimated patients

Sex: All

Ages: 18 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Age of 18-80 years
• Cataract surgery is planned
• The operation was successful without any complications
• Implanted with ZXR00 IOLS or ZMB00 IOLs

Exclusion criteria

• The history of retinopathy or retinal surgery
• Irregular corneal astigmatism
• Regular corneal astigmatism of 1.00 diopter (D) or more
• Iris abnormalities
• Macular degeneration
• Neuro-ophthalmic disease
• The history of ocular inflammation

Trial design

30 participants in 3 patient groups

ZXR00+ZXR00 emmetropia group

Description:

The bilateral implantation of ZXR00 IOLs，and emmetropia was considered as the target refraction for both eyes.

ZXR00+ZXR00 micromonovision group

Description:

The bilateral implantation of ZXR00 IOLs，and the ZXR00 IOLs power calculations were performed using a micro-monovision approach aiming for minimal residual myopia (≈ -0.50 D) in the nondominant eye and emmetropia in the dominant eye.

ZXR00ZMB00 group

Description:

The blended implantation of bifocal IOLs (ZMB00) and ZXR IOLs.