A qualitative investigation of visual tasks with which to assess distance-specific visual function

Atkinson, Mark J.; Tally, Steven R.; Heichel, Christopher W.D.; Kozák, Igor; Leich, Jennifer; Levack, Ashley E.

doi:10.1007/s11136-012-0154-2

Cited by 7 publications

(5 citation statements)

References 36 publications

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“…Both have been validated in English-speaking contexts and Catquest-9F has also been validated in other languages including Spanish. 51 , 52 The use of qualitative research to establish the basis of task-based content for patient-reported outcomes of visual function have been explored previously by other researchers 36 who identified several gaps in task content and distance-specific constructs associated with visual function, including the lack of scales to assess visual tasks for the intermediate visual range, as well as to assess the use of technological devices, and the fact that there were only found two measures to assess ambulatory accident risks.…”

Section: Discussionmentioning

confidence: 99%

“…All interviews were digitally recorded with permission from participants and transcribed onto a Microsoft Word ® file. Data collected were listed, coded, and categorized by visual range adapting the framework proposed by Atkinson et al 36 Data processing occurred as an iterative process, so analysis started before data collection was completed. The study was complied with the Declaration of Helsinki and approved by the Ethics Committee of the Autonomous University of Barcelona.…”

Section: Methodsmentioning

confidence: 99%

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Exploring Vision-Related Quality of Life: A Qualitative Study Comparing Patients’ Experience of Cataract Surgery with a Standard Monofocal IOL and an Enhanced Monofocal IOL

Alias¹,

Carrasco²,

Salvador-Miras³

et al. 2022

OPTH

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Purpose To explore quality of life related with intermediate vision of patients before and after cataract surgery, and to make patients’ experience available for the design of future scales that assess visual function related with intermediate distance. Patients and Methods A qualitative research methodology based on thematic content analysis was used to explore vision-related quality of life based on the experiences of patients with cataract. Patients were recruited at the Service of Ophthalmology of the Hospital de Sant Pau (Barcelona, Spain). Data were collected through nineteen semi-structured interviews conducted with patients diagnosed with cataract and implanted with a standard aspheric monofocal intraocular lens (IOL) (Tecnis ® ZA9003) (n = 6), an enhanced monofocal IOL (Tecnis ® Eyhance ICB000) (n = 6), and patients from the waiting list (n = 7). The data analysis consisted in coding, aggregation, and theme development of the transcribed audios. Results Patients on waiting lists reported difficulty and insecurity in performing daily and meaningful tasks related to near visual ranges (eg: threading a needle, reading price tags), intermediate (eg: using a computer or dialling numbers on a smartphone), and distant (eg: recognizing faces, walking on uneven surfaces). Patients after surgery with the standard IOL reported improvement in performing activities mainly in the distant visual range, but also the need for a better communication with clinical staff to adjust their own expectations on the results of the surgery. Finally, patients implanted with the enhanced IOL reported satisfaction and improved visual function in performing daily activities, especially those related to the intermediate visual range. Conclusion Our exploratory study found that patients after cataract surgery with the enhanced IOL reported a better performance in activities that require the intermediate vision. These results will inform the development of scales to assess vision-related quality of life in the intermediate visual range prioritizing outcomes according to patients’ daily and meaningful activities.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Exploring Vision-Related Quality of Life: A Qualitative Study Comparing Patients’ Experience of Cataract Surgery with a Standard Monofocal IOL and an Enhanced Monofocal IOL

Alias¹,

Carrasco²,

Salvador-Miras³

et al. 2022

OPTH

View full text Add to dashboard Cite

show abstract

“…3 Optimal levels of visual function are necessary for successful interaction with the visual environment to plan and execute vision-related tasks at distance and at near as well as to undertake activities of daily-living and independent mobility. 4 Distance vision tasks refer to activities that are performed usually beyond 4 metres (m). 4 Unlike near-vision tasks that are most often sedentary activities, distance vision tasks are related to mobility and include dynamic activities such as driving and engaging in sports as well as leisure activities.…”

Section: Introductionmentioning

confidence: 99%

“…4 Distance vision tasks refer to activities that are performed usually beyond 4 metres (m). 4 Unlike near-vision tasks that are most often sedentary activities, distance vision tasks are related to mobility and include dynamic activities such as driving and engaging in sports as well as leisure activities. 5 In a qualitative study that used methods such as focus groups, interviews, reflective journals and a questionnaire, to investigate the types of visual tasks performed at different distances, Atkinson et al 4 reported that driving was the most frequently mentioned distance vision activity.…”

Section: Introductionmentioning

confidence: 99%

“…7 When interacting with the visual environment to undertake a http://www.avehjournal.org Open Access distance vision task, different visual functions may be needed to safely and efficiently perform the task being undertaken. 4 Some of the visual functions that are important for distance vision tasks include distance visual acuity (VA), stereoacuity and contrast sensitivity. Visual acuity, which is probably the most frequently measured aspect of visual function, is a measure of the spatial resolving ability of the eye.…”

Section: Introductionmentioning

confidence: 99%

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Effect of induced blur on distance visual function

Hoosen

Mitha

Narothan

et al. 2020

African Vision and Eye Health

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Background: Tests of visual function assess the eye and visual system. Factors such as ageing, refractive error, strabismus, amblyopia and ocular diseases have a negative effect on different visual functions. Aim:To determine the effect of induced blur on three measures of distance visual function (visual acuity, stereopsis and contrast).Setting: University of KwaZulu-Natal eye clinic.Methods: A quasi-experimental research design was adopted and included 30 healthy young adults. Three convex test lenses (1 dioptre [D], 3 D and 5 D) were used to induce blur and a lens of no power (0 D) was a placebo. The binocular visual acuity (BVA), stereoacuity and binocular contrast were assessed with the LogMAR chart, Howard-Dolman apparatus and Lea low contrast test, respectively. Tests of visual function were measured with no test lens (habitual measurement), and also with each test lens. Data were analysed using descriptive and inferential statistics. Results:The mean habitual BVA and stereoacuity were 0.01 LogMAR ± 0.05 LogMAR and 29 arcsec ± 20 arcsec, respectively. The mean BVA and stereoacuity measurements with the convex test lenses were ≥ 0.24 LogMAR and ≥ 62 arcsec, respectively and significantly different from the habitual measurements (p < 0.001). Most participants were unable to achieve the habitual contrast level with the three convex test lenses. Conclusion:Induced blur reduced the three measures of distance visual function and the decrease was proportional to the power of the convex test lens. These findings should be considered when screening uncorrected ametropes for eligibility for a driver's licence.

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In vitro optical quality comparison between the Mini WELL Ready progressive multifocal and the TECNIS Symfony

Domínguez‐Vicent

Esteve-Taboada

Águila-Carrasco

et al. 2015

Graefes Arch Clin Exp Ophthalmol

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A qualitative investigation of visual tasks with which to assess distance-specific visual function

Abstract: This thematic analysis provides a rich body of information about tasks that affect daily life and are made more difficult by poor visual acuity at various distance ranges.

Cited by 7 publications

References 36 publications

Exploring Vision-Related Quality of Life: A Qualitative Study Comparing Patients’ Experience of Cataract Surgery with a Standard Monofocal IOL and an Enhanced Monofocal IOL

Exploring Vision-Related Quality of Life: A Qualitative Study Comparing Patients’ Experience of Cataract Surgery with a Standard Monofocal IOL and an Enhanced Monofocal IOL

Effect of induced blur on distance visual function

In vitro optical quality comparison between the Mini WELL Ready progressive multifocal and the TECNIS Symfony

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