The Effect of Early Cataracts on Glare and Contrast Sensitivity

Adamsons, Ingrid; Rubin, Gary S.; Vitale, Susan; Taylor, Hugh R.; Stark, Walter J.

doi:10.1001/archopht.1992.01080200061025

Cited by 87 publications

(40 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The only comment that can be made from these results are that the parameter estimates from our analysis imply an increase in glare disability in the presence of cataract, a finding expected from clinical experience and previous publications. 5,8 Importantly, a previous study by Elliott et al 3 found a much higher correlation between light scatter and contrast sensitivity tests than either logMAR visual acuity or glare disability tests. In the context of Elliott's report, the lack of significant findings from our population-based data, albeit with limitations, and the cumbersome nature of glare disability tests, we advocate that in a clinical situation, glare disability testing may not add significantly to findings from standard visual acuity and contrast sensitivity tests.…”

Section: Discussionmentioning

confidence: 90%

“…Ophthalmologists currently use the combination of subjective visual impairment, objective clinical measurements, and informed consent before recommending cataract surgery. [4][5][6] There is considerable variation, however, in the use of available visual function tests by ophthalmologists. 7 Traditional visual acuity testing use broadband optotypes to measure visual spatial resolution at a single contrast level, inadequate for testing the entire range of the visual potential.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of cataract type and location on visual function: The Blue Mountains Eye Study

Chua

Mitchell

Cumming

2004

Eye

View full text Add to dashboard Cite

Purpose To measure the effect of cataract type, severity and location on presenting, and best-corrected visual acuity, contrast sensitivity, and glare disability. Methods In all, 3654 (82.4% participation rate) eligible noninstitutionalised residents aged 49 years or older, living in two postcode areas of the Blue Mountains, Australia, received detailed eye examinations including visual acuity, contrast sensitivity, and glare disability testing. Data from right eyes were analysed using multiple regression modelling. Results The effect of age on visual acuity and contrast sensitivity only became evident in persons aged at least 60 years. Cataract severity was inversely related to visual acuity and contrast sensitivity. Late posterior subcapsular cataract caused the greatest reduction in visual acuity. Early grade cataract caused significant reduction in contrast sensitivity at intermediate and high spatial frequencies, but late grade cataract reduced contrast sensitivity across all spatial frequencies. There was insufficient study power to detect consistent significant effect of cataract on glare disability tests or cortical cataract location on visual function. Conclusions Age at least 60 years, cataract type, and cataract severity were principal determinants of visual acuity and contrast sensitivity in this study. Axial and superotemporally located cortical cataract had the greatest effect on visual function tests.

show abstract

Section: Discussionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Effects of cataract type and location on visual function: The Blue Mountains Eye Study

Chua

Mitchell

Cumming

2004

Eye

View full text Add to dashboard Cite

show abstract

“…However, early cataracts leave visual acuity and contrast sensitivity unaffected. [18][19][20][21] In such a situation, glare testing may be of particular value. At a population level, measures of visual acuity are highly correlated with contrast sensitivity and glare sensitivity.…”

Section: Introductionmentioning

confidence: 99%

Disability Glare in the Aging Eye. Assessment and Impact on Driving☆

Berg

Rijn

Kaper-Bongers

et al. 2009

Journal of Optometry

View full text Add to dashboard Cite

PURPOSE:To compare different methods for the assessment of disability glare sensitivity in the elderly, to arrive at an objective assessment of the condition of the eye. To delineate the importance of straylight values in vision. METHODS: Three groups of subjects were studied: 1) Young subjects without any eye disease, 2) elderly subjects without any eye disease and 3) elderly subjects with (early) cataract in at least one eye. All subjects underwent 2 glare tests, 2 straylight tests, ETDRS visual acuity test, Pelli Robson contrast sensitivity test, refraction, LOCS III cataract classification. Straylight was quantified by means of the straylight parameter s. RESULTS: Repeatability, discriminative ability, and added value as compared to visual acuity were low for the glare tests and good for the straylight measurements. For young normal subjects, with log(s)=0.9, the standard glare situation with low beams gives a contrast reduction of 1.3, whereas for the healthy 77 year olds this increases to 2. With cataract hardly affecting visual acuity, log(s) can be as high as 1.8, resulting in a contrast reduction of 3.4. CONCLUSION: Straylight measurement is of relevance for the assessment of the glare-related hindrance during driving, and can be used to objectify complaints and aid in the decision-making regarding cataract surgery. (J Optom 2009;2:112-118 ©2009 Spanish Council of Optometry) KEY WORDS: straylight; glare sensitivity; disability glare; CIE; aging; driving. RESUMEN OBJETIVO:Comparar diferentes métodos para medir la sensibilidad al deslumbramiento perturbador en sujetos de edades avanzadas, con el fin además de lograr una valoración objetiva de las afecciones oculares. Definir la importancia que tiene la luz dispersa (parásita) sobre la visión. MÉTODOS: Se estudiaron tres grupos de sujetos: 1) Sujetos jóvenes sin ningún tipo de afección ocular, 2) sujetos de edad avanzada sin ningún tipo de afección ocular y 3) sujetos de edad avanzada con cataratas (incipientes) en, al menos, uno de los ojos. A todos los sujetos se les realizaron, entre otras, 2 pruebas de deslumbramiento y 2 pruebas de luz dispersa, se les midió la agudeza visual mediante optotipos ETDRS (siglas en inglés del Estudio sobre el tratamiento temprano de la retinopatía diabética), la sensibilidad al contraste con el test de Pelli-Robson, la refracción, y se clasificó la catarata (para sujetos del tercer grupo) utilizando el Sistema de Clasificación de Opacidades del Cristalino( o sus siglas en inglés, LOCS III). La luz dispersa (parásita) se cuantificó por medio del parámetro de luz dispersa s. RESULTADOS: La repetibilidad, la capacidad discriminativa, y el valor añadido, resultaron ser bajos para los tests de deslumbramiento pero buenos para las medidas de la luz dispersa (en comparación con los valores que proporciona la medida de la agudeza visual). Para los sujetos jóvenes sin patologías oculares, con log(s)=0,9, la situación habitual de deslumbramiento con haces bajos causa una reducción del contraste del 1,3, mientras que para l...

show abstract

“…Immature cataract was the second leading cause of ocular morbidity in this study and this is expected as cataract is the commonest cause of visual impairment and blindness worldwide. Cataract reduces visual acuity, contrast sensitivity and also causes an increase in disability glare and self-reported difficulties with the tasks of daily driving [22][23][24] . Removal of cataract is associated with a marked improvement in both health related quality of life and driving performance [25,26] .…”

Section: Discussionmentioning

confidence: 99%

Ocular Status of Inter-State Commercial Drivers: A Cross Sectional Study in Odisha, India

Kshatri

Pradhan

Patro

et al. 2016

International Journal of Ophthalmic Research

View full text Add to dashboard Cite

INTRODUCTION:Road traffic accident is a major health problem worldwide. Driving is a visually intensive task which requires several sets of abilities which include sensory ability (mainly visual). In view of the importance of good vision in safe driving this study was conducted to assess the ocular status of inter-state commercial drivers in Berhampur Odisha. MATERIALS AND METHODS:This descriptive cross-sectional study was conducted over three months among inter-state truck drivers. All the respondents had their eyes examined. Their visual acuities and colour vision were assessed with the aid of Snellen's chart and Ishihara pseudochromatic plates respectively. The data obtained was collated and analysed with the aid of Statistical Package for Social Sciences (SPSS) 20.0.1 statistical software. RESULTS: 195 truck drivers were included in this study. The duration of driving experience of the respondents revealed that majority of the respondents (38%) had more than 20 years driving experience. Few respondents (7.7%) used recommended glasses while majority (92.3%) did not use recommended glasses. Most respondents (94.35% and 91.28%) had visual acuity of 6/5-6/18 in the better eye and second eye respectively. Most respondents with eye problem (65.1%) did not seek eye treatment. All the respondents had normal colour vision. Most of the respondents (70.2%) did not have ocular morbidity. Few respondents 37 (19%) had history of involvement in RTA while driving and the remaining 158 (81%) had not been involved in RTA. The visual acuity in the better and second eye did not significantly affect involvement in road traffic accident with a p-value of 0.94 and 0.61 respectively.

show abstract

The Effect of Early Cataracts on Glare and Contrast Sensitivity

Cited by 87 publications

References 27 publications

Effects of cataract type and location on visual function: The Blue Mountains Eye Study

Effects of cataract type and location on visual function: The Blue Mountains Eye Study

Disability Glare in the Aging Eye. Assessment and Impact on Driving☆

Ocular Status of Inter-State Commercial Drivers: A Cross Sectional Study in Odisha, India

Contact Info

Product

Resources

About