A comparative study of visual function of young myopic adults wearing contact lenses vs. spectacles

Kanonidou, Evgenia; Chatziralli, Irini; Konidaris, Vasileios; Kanonidou, Christina; Papazisis, Leonidas

doi:10.1016/j.clae.2012.07.001

Cited by 10 publications

(7 citation statements)

References 15 publications

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“…The use of both spectacles and contact lenses offers acceptable visual functioning for everyday activities in young people suffering from mild to moderate myopia. Nevertheless, there is an advantage of spectacles wear in personal satisfaction when compared to contact lenses [21]. In study comparing vision-related qualityof-life measures between children wearing Orthokeratology (OK) contact lenses and distance single-vision (SV) spectacles.…”

Section: Discussionmentioning

confidence: 99%

Prevalence of Myopia and its Related Risk Factors among Medical Students in Saudi Arabia

Algorinees

Alqahtani

Aljarbou

et al. 2017

AOVS

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Background: Myopia or near-sightedness is the most frequent cause of vision deterioration with growing burden worldwide. Although myopia is hereditary, nearsightedness is tremendously increasing due to endlessly focusing on close objects. Therefore, the objective of the present study was to assess the burden of nearsightedness and its related risk factors among medical students in the Kingdom of Saudi Arabia (KSA).

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Section: Discussionmentioning

confidence: 99%

Prevalence of Myopia and its Related Risk Factors among Medical Students in Saudi Arabia

Algorinees

Alqahtani

Aljarbou

et al. 2017

AOVS

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“…Kanonidouet et al [15] reported that the myopic (mild to moderate) participants were facing more difficulty while they…”

Section: Discussionmentioning

confidence: 99%

“…Visual function 14 (VF-14) is a commonly used vision-related functional questionnaire. 8 Initially, it was designed to assess vision-related functions in patients undergoing cataract surgery, but it has also been validated for other eye conditions such as glaucoma, retinal, corneal diseases and CLs [9][10][11][12][13][14][15]. The VF-14 is easy to administer and to comply with.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Effect of Contact Lenses on Daily Life in Myopia and Myopic Astigmatisma: VF-14 Questionnaire

Uzunel¹

2016

IJOAO

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Purpose: To compare the visual functions of individuals with mild to moderate myopia (-2.00 D to -5.00 D) and myopic astigmatism (-1.25 D to -2.75 D) who are wearing contact lenses with those wearing spectacles. Materials and Methods:Eighty participants (40 myopia and 40 myopic astigmatism) who have been followed up at our contact lens unit were included. All participants were using both contact lenses and spectacles. The VF-14 questionnaire was used to compare the impacts of contact lenses wearing versus spectacles on daily life. Results:In myopic participants, the mean VF-14 scores for spectacles and contact lenses were 89.5±18.7 and 96.6±9.3 respectively (p < 0.001). There was a statistically significant difference between spectacles and contact lenses in following activities: watching TV, sports involvement, seeing steps/stairs, playing table games and cooking (p=0.005, p ˂ 0.001, p=0.003, p=0.008, p ˂ 0.001, respectively, paired t tests).In participants with myopic astigmatism, mean VF-14 scores for spectacles and contact lenses were 88.7±21.8 and 98.3±6.3 respectively (p < 0.001). Statistically significant difference was found between spectacles and contact lenses for the following activities: doing fine handwork, driving at night, watching TV, sports involvement, seeing steps/stairs, playing table games, cooking and recognizing people at distance (p=0.001, p=0.039, p=0.001, p ˂ 0.001, p=0.031, p=0.027, p ˂ 0.001, p=0.023 respectively, paired t tests).When two groups were compared in terms of all the questions, the VF 14 score was found significantly better in participants wearing contact lenses for the correction of myopic astigmatism during reading small print and doing fine hand work (p=0.002 and p=0.005, respectively; independent sample test). Conclusions:Wearing contact lenses is more favorable than spectacles in most of daily activities in individuals with mild to moderate myopia and myopic astigmatism. It can improve the quality of life even further in individuals with myopic astigmatism.

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“…Several studies have suggested that the use of single vision soft contact lenses versus spectacles could modify accommodative and binocular function, [22][23][24][25] as well as everyday visual functioning. 26 However, the use of soft contact lenses permits a central and peripheral visual performance similar to spectacles. 27 Relevantly, the concept of 'accommodative unit' introduced that the different vertex distances between both optical correction methods (e.g., soft contact lenses and spectacles), as well as the back vertex power, are known to vary the accommodative demand and response.…”

Section: Introductionmentioning

confidence: 99%

Effects of Optical Correction Method on the Magnitude and Variability of Accommodative Response: A Test-retest Study

et al. 2019

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SIGNIFICANCE The present study addresses the accommodative response and its dependence on the type of optical correction used. The results are discussed relative to their possible implications for myopia progression and visual fatigue. PURPOSE The accommodative response has been investigated owing to its possible relationship with the onset and progression of myopia and visual fatigue. This study explored the influence of wearing soft contact lenses in comparison with spectacles in terms of magnitude and variability of accommodation. In addition, we analyzed the intersession and intermethod repeatability. METHODS Dynamic accommodative response was recorded during 30-second epochs, at five different distances (50, 40, 33, 25, and 20 cm), in 21 individuals (mean refractive error ± SD, −0.79 ± 1.39 D) while wearing either soft contact lenses or spectacles on two different days. To assess repeatability, a second identical intervention was conducted. RESULTS Higher lags of accommodation were obtained with the use of soft contact lenses in comparison with the spectacle condition (P = .04, partial η2 [ηp 2] = 0.204), and similarly, a higher variability of accommodation at near distances was found during the soft contact lens measurement (P < .001, ηp 2 = 0.647). There was a strong intersession repeatability at all the distances tested for both optical correction methods. CONCLUSIONS The higher accommodative lag and fluctuations found while wearing soft contact lenses in comparison with spectacles may help to understand the mechanisms underlying myopia progression and asthenopia. These findings may be also considered when testing the accommodative response in research settings. Our test-retest design confirmed that there is a very good intersession repeatability for all the distances in both optical correction methods.

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A comparative study of visual function of young myopic adults wearing contact lenses vs. spectacles

Cited by 10 publications

References 15 publications

Prevalence of Myopia and its Related Risk Factors among Medical Students in Saudi Arabia

Prevalence of Myopia and its Related Risk Factors among Medical Students in Saudi Arabia

Comparison of Effect of Contact Lenses on Daily Life in Myopia and Myopic Astigmatisma: VF-14 Questionnaire

Effects of Optical Correction Method on the Magnitude and Variability of Accommodative Response: A Test-retest Study

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