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Completed

NCT Number: NCT05262504

Comparison of a Novel Non-diffractive Extended Depth of Focus Intraocular Lens (IOL) and a Trifocal IOL

The purpose of this study is to compare visual performance and quality of life (QOL) following bilateral implantation of a novel non-diffractive extended depth-of-focus (EDOF) intraocular lens (IOL) (AcrySof® IQ Vivity, Alcon, TX, USA) and a trifocal IOL (Acrysof® IQ PanOptix, Alcon, Fort Worth, TX) in a prospective comparative interventional case series.

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Key information

Conditions

Intraocular Lens Cataract Eye Diseases Lens Diseases Quality of Life

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Baskent University Faculty of Medicine

Ankara, 06490, Turkey (Türkiye)

About this study

Developments in cataract surgical devices and intraocular lenses (IOL) increased patient expectations and changed the practice patterns in ophthalmology. Nowadays, cataract surgery is considered as a refractive surgery. With multifocal IOLs, spectacle independence can be achieved with a good distance, intermediate and near visual acuity. This is associated with increased quality of life after cataract surgery.The most important disadvantages of multifocal IOLs are loss of contrast sensitivity and photic phenomena such as glare and halo. Although multifocal IOLs are more frequently associated with photic disturbances than monofocal IOLs, the trifocal IOLs have improved performance in photic phenomena when compared to bifocal IOLs. Recently, a new technology known as extended depth of focus (EDOF) IOLs have been developed. These lenses create a single elongated focal point to enhance the depth of focus, improving intermediate vision without compromising distance vision. Although EDOF IOLs provide better intermediate distance vision when compared to monofocal IOLs, near vision is not as good as trifocal IOLs. The most important advantage provided by the EDOF technology is lower rate of photic disturbances than trifocal IOL designs. The aim of this study was to compare the visual performance and patient-reported quality of life (QOL) outcomes following bilateral implantation of a novel non-diffractive wavefront shaping EDOF IOL (AcrySof® IQ Vivity, Alcon Research, TX, USA) and a trifocal IOL (AcrySof® IQ PanOptix, Alcon Laboratories, Fort Worth, TX).

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Cataract patients scheduled for surgery who are interested in spectacle independence.
  • Bilateral cataract with plan of bilateral sequential cataract surgery.
  • Adult patients older than 18 years of age
  • Normal cognitive function, able to understand advantages and disadvantages associated with different types of IOLs.

Exclusion criteria

  • Ocular diseases other than cataract including irregular astigmatism, diabetic retinopathy, age-related macular degeneration or any other retinal diseases, severe dry eye, glaucoma, amblyopia, uveitis, pseudoexfoliation syndrome, abnormal pupillary function, history of intraocular or corneal surgery, congenital eye abnormalities, or eye trauma.
  • Patients with high myopia with axial length (AL) ≥ 26,5 mm and high hyperopia (AL ≤ 21.5 mm)
  • Lifestyle and work-related factors requiring sharp near or distance vision
  • Patients with unrealistic visual expectations.

Treatment and study plan

İntraocular lens implantation

Device

Each participant underwent bilateral sequential cataract surgery and bilateral implantation of a novel non-diffractive EDOF IOL (n=26) or a trifocal IOL (n=26). The interval between the first and second-eye surgeries was 1 to 3 weeks. The patients selected the IOL model after they were fully informed regarding the advantages and disadvantages of each IOL, by their surgeon. Their degree of interest in greater spectacle freedom at far, intermediate, and near distances, as well as their daily activities such as frequency of night driving or reading habits were discussed. The possibility of photic disturbances was described and explained as well.

Primary outcomes

  1. Postoperative visual acuity with or without spectacle correction at near, far and intermediate distances

    Time frame: postoperative third month

    uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), distance corrected intermediate visual acuity (DCIVA), distance corrected near visual acuity (DCNVA)

  2. Defocus-curves

    Time frame: postoperative third month

    The monocular defocus curves were evaluated under photopic conditions using defocusing lenses from +0.50 D to -4.00 D in 0.50 D steps. The measurements were performed by adding the lenses to the CDVA.

  3. Contrast sensitivity

    Time frame: postoperative third month

    Monocular and binocular contrast sensitivity was assessed with the Pelli-Robson chart under photopic conditions at 3 meters.

  4. Reading speed

    Time frame: postoperative third month

    Reading speed was measured using the validated Turkish version of the MNREAD chart in photopic illumination conditions. It was recorded as number of words read by the patient in one minute (words per minute-wpm).

  5. Quality of vision / dysphotopsia

    Time frame: postoperative third month

    Dysphotopsia was assessed by the Quality of Vision (QoV) questionnaire developed by McAlinden et al. The QoV is a validated Rasch-adjusted questionnaire in which patients are asked to rate specific dysphotopsia items depicted in standard photographs. Patients score each item (0, 1, 2, or 3) in relation to how frequent, severe, and bothersome their symptoms are (30 items in total). Lower QoV scores indicate a better quality of vision.

  6. Vision-related quality of life (QOL)

    Time frame: postoperative third month

    The vision-related QOL was assessed three months after the surgery by the VF-14 QOL questionnaire that was administered face-to-face by a trained researcher (İK). The grading scale was as follows: 0, no difficulty; 1, a little difficulty; 2, moderate difficulty; 3, quite difficult; 4, impossible to perform. Special care was taken not to influence the patients and to ensure that each question was fully understood.

Sponsors and collaborators

Lead sponsor

Baskent University Ankara Hospital

Other

Registry information

Official study title

Comparison of Visual Performance and Quality of Life With a Novel Non-diffractive Extended Depth-of-focus IOL and a Trifocal IOL

Important dates

Study start
2021
Primary completion
2021
Study completion
2021
First posted
Mar 2, 2022
Registry last updated
Jul 27, 2023

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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