Erworbene Farbensehstörungen nach Operation von Ablatio retinae

Marré, M; Marré, E; Eckardt, T.

doi:10.1007/bf03163968

Cited by 3 publications

(3 citation statements)

References 10 publications

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“…It has been previously noted that low illumination levels show a tendency to a blue-yellow axis disturbance. 10 In addition, the hue differences are smaller between the color caps than those in the Lanthony Desaturated Panel D-15, and, therefore, it could be more difficult to obtain error scores in the normal range at reduced illumination levels.…”

Section: Methodsmentioning

confidence: 98%

Influence of illumination on results of the hue-discrimination test, Roth 28-Hue desaturated

Erb¹,

Ulrich²,

Adler³

et al. 1999

Neuro-Ophthalmology

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Objectives: To study the influence of different illumination levels on the results of the hue-discrimination test, Roth 28-Hue desaturated. Subjects and methods: The cap-sorting test, Roth 28-Hue desaturated, was conducted using four different illumination levels and four groups of patients taken from a total test cohort of 172 ocularly and generally healthy subjects: 4800 lux (Group 1: 76 subjects; mean age±SD: 30±9 years); 2000 lux (Group 2: 35 subjects; mean age±SD: 31±5 years); 1000 lux (Group 3: 34 subjects; mean age±SD: 31±8 years); and 100 lux (Group 4: 26 subjects; mean age±SD: 30±7 years). The illumination levels were determined with the Minolta Chroma Meter XY-1. Illumination was provided by fluorescent light sources with a balanced spectral distribution and a color-rendering index of 93 (Osram L36W/12 LDL Daylight). Results: No differences could be detected between the illumination level of 4800 lux (average error sum=median± MAD; 42±18) and 2000 lux (average error sum: 40±22). However, examination with 1000 lux showed a small increase in the average error sum (52±21) and the examination with 100 lux showed a statistically significant increase in the average error sum (78±20)(Wilcoxon, p<0.001) but without a preferred disturbance of any particular color axis. Discussion: These differences in error score demonstrate that the results of hue-discrimination tests can be influenced by the illumination level. This must be considered when the results of different color tests are compared. As a standard, we recommend an illumination level of 2000 lux.

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Section: Methodsmentioning

confidence: 98%

Influence of illumination on results of the hue-discrimination test, Roth 28-Hue desaturated

Erb¹,

Ulrich²,

Adler³

et al. 1999

Neuro-Ophthalmology

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“…During the examination it also compensates for eye movements and functions independent of fixation location and stability; an essential feature for any test intended for patients with macular disease. 15 The MP-1 uses video fundus camera to capture real-time fundus imaging during perimetry and captures a color fundus image at the end of the test phase, on which the results are presented. The MP-1 allowed testing of a greater retinal field than the Rodenstock SLO, but the quality of the non-SLO IR images were limited.…”

Section: Microperimetrymentioning

confidence: 99%

Scanning Laser Ophthalmoscope in the Management of Age-related Macular Degeneration

Scripsema¹,

Rosen²

2012

US Ophthalmic Review

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Recent advances in retinal imaging have improved the evaluation and prognostication of age-related macular degeneration. The development and modification of the scanning laser ophthalmoscope (SLO) has played a pivotal role in our understanding of the disease. SLO has led to improved methods of visualizing characteristics of the disease, such as drusen and alterations in autofluorescence, and also provided a platform for the quantification of structural and functional changes occurring as a result of the disease process. This article provides a review of the current literature on the impact and clinical utility of SLO devices for infrared viewing, fundus autofluorescence, microperimetry, and as integraded multimodal imaging systems such as optical coherence tomography and SLO.

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“…Absolute thresholds for detection of flashed stimuli, however useful, are often the final component of visual function to be affected in disease. Sensitivity for detection of fine spatial detail, motion and colour signals can be selectively damaged in many diseases of the eye and often precedes visual field loss (Barbur and Konstantakopoulou 2012, Bergin et al 2011, Hawkins et al 2003, Lee 1991, Westcott et al 1998, Bullimore et al 1993, Zihl et al 1983, Marré and Marré 1986, Verriest 1963, Krastel and Moreland 1991. Cerebrovascular accidents have also been shown to cause impaired contrast sensitivity (Fisk et al 2002) and colour vision loss (Rauscher et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Assessment of novel binocular colour, motion and contrast tests in glaucoma

et al. 2013

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This is the unspecified version of the paper.This version of the publication may differ from the final published version. The effects of glaucoma on binocular visual sensitivity for detection of different stimulus attributes were investigated at the fovea and in four paracentral retinal regions. The study employed a number of visual stimuli designed to isolate the processing of different stimulus attributes. We measured absolute contrast detection thresholds and functional contrast sensitivity using Landolt ring stimuli. This psychophysical Landolt C based contrast test of detection and gap discrimination allowed us to test parafoveally at 6° from fixation as well as foveally employing interleaved testing locations. First-order motion perception was examined using moving stimuli embedded in static luminance contrast noise. Red/green (RG) and yellow/blue (YB) colour thresholds were measured with the Colour Assessment and Diagnosis (CAD) test, which utilises random dynamic luminance contrast noise (±45%) to ensure that only colour and not luminance signals are available for target detection. Subjects were normal controls (n = 65) and glaucoma patients with binocular visual field defects (n = 15), classified based on their Humphrey Field Analyzer mean deviation (MD) scores. The impairment of visual function varied depending on the stimulus attribute and location tested. There was also a progression of loss for all tests as the degree of glaucoma increased. For subjects with mild glaucoma (MD -0.01dB to -6.00dB) significantly more data points fell outside the normal age-representative range for RG colour thresholds than for any other visual test, followed by Motion thresholds. This was particularly the case for the parafoveal data compared to the foveal data. The findings suggest that a multifaceted measure of binocular visual performance, incorporating RG colour and motion testing at multiple locations, may provide a better index for comparison with QOL measures in glaucoma. Permanent repository link

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Erworbene Farbensehstörungen nach Operation von Ablatio retinae

Cited by 3 publications

References 10 publications

Influence of illumination on results of the hue-discrimination test, Roth 28-Hue desaturated

Influence of illumination on results of the hue-discrimination test, Roth 28-Hue desaturated

Scanning Laser Ophthalmoscope in the Management of Age-related Macular Degeneration

Assessment of novel binocular colour, motion and contrast tests in glaucoma

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