Evaluation of Visual Acuity in Myopic Cataract Patients Using Trifocal Intraocular Lens

Aier School of Ophthalmology, Central South University80 enrolled

Overview

The PanOptix trifocal IOL is a new trifocal intraocular lens which is proved to provide good range of vision for distance, intermediate and near and good visual quality in cataract patients with normal axial length. But whether it can get the same visual quality in myopia is still unknown

There are a few publications of multi-focal IOLs on Chinese patients with high myopia. From published papers, it is known that performance of multifocal IOLs is satisfied in myopic patients. However there is no publication to investigate PanOptix in moderate and high myopic patients. So it is imperative to demonstrate good performance of PanOptix in those special patients. The purpose of this study is to assess visual performance and patient satisfaction after the implantation of PanOptix in myopic patients.

Study Type

OBSERVATIONAL

Enrollment

Conditions

Cataract Myopia Intraocular Lens

Eligibility

Sex: ALLMin age: 18 YearsMax age: 90 Years

Medical Language ↔ Plain English

Inclusion Criteria: 1. Axial myopic patients（Refractive condition match the axial length after eliminate the nuclear cataract induced myopia factor） 2. Corneal astigmatism \<1.0D (IOL-Master 500/700, Carl Zeiss Meditec, Jena, Germany); 3. Eyes with pupil diameter\>2.5 mm (Photopic) and\<6 mm (Mesopic) (Pentacam HR, Oculus Optikgerate GmbH); 4. Eyes with angle kappa\<0.50 mm (Pentacam HR); 5. Eyes with corneal spherical aberration\<0.50 (Pentacam HR) Exclusion Criteria: 1. Irregular corneal astigmatism 2. Any retinal disease, macular disease(Including myopic MD and retinal diseases) could affect VA, glaucoma and other severe intraocular diseases 3. Moderate-severe dry eye 4. Amblyopia（BCDVA\<0.7 before cataract appears） 5. Patients having difficulties with examinations or 3 months' follow-up.

Locations (1)

Xu Chen

Shanghai, China

RECRUITING

Outcomes

Primary Outcomes

Axial length (AL)

Measured using the partial coherence laser interferometry (IOLMaster, Carl Zeiss Meditec, Germany)

Time frame: 1 minute

Uncorrected distance visual acuity

Uncorrected distance visual acuity (4m) were measured using the reading table model of the Early Treatment Diabetic Retinopathy Study charts (ETDRS; Vector Vision, Ltd, Greenville, OH, USA).

Time frame: 10 minutes

Uncorrected near visual acuity

Uncorrected near visual acuity (40cm) were measured using the reading table model of the Early Treatment Diabetic Retinopathy Study charts (ETDRS; Vector Vision, Ltd, Greenville, OH, USA).

Time frame: 10 minutes

Uncorrected intermediate visual acuity

Uncorrected intermediate visual acuity (60cm) were measured using the reading table model of the Early Treatment Diabetic Retinopathy Study charts (ETDRS; Vector Vision, Ltd, Greenville, OH, USA)

Time frame: 10 minutes

contrast sensitivity

Binocular contrast sensitivity was measured at spatial frequencies of 3, 6, 12, and 18 cycles per degree (cpd) using the functional acuity contrast test(Test SV-1000) of the CC-100 HW 5.0 Series system

Time frame: 30 minutes

Central Contacts

Xu Chen

CONTACT

+8613601762646 Francois.chenxu@gmail.com

Data from ClinicalTrials.gov

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