Evaluation of the Night Vision Spectacles on patients with impaired night vision

Friedburg, Christoph; Sérey, Ludwig; Sharpe, Lindsay T.; Trauzettel‐Klosinski, Susanne; Zrenner, Eberhart

doi:10.1007/s004170050207

Cited by 23 publications

(17 citation statements)

References 8 publications

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“…[12–14] Control of glare and determination of the proper luminance for activities of daily living, such as reading and driving, is important for the patients’ care. [1516] In the current study, our results showed that adding glare caused a significant decrease of CVA in evening vision. On the other hand, in day vision, the effect of a glare source on CVA was minimal.…”

Section: Discussionsupporting

confidence: 55%

Contrast visual acuity in patients with retinitis pigmentosa assessed by a contrast sensitivity tester

Oishi

Nakamura

Hangai

et al. 2012

Indian J Ophthalmol

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Purpose:To assess contrast visual acuity (CVA) in patients with retinitis pigmentosa (RP) and compare the result with standard visual acuity (VA), retinal thickness, status of inner segment/outer segment junction, and central visual field.Materials and Methods:Thirty-nine eyes of 39 patients with RP and 39 eyes of 39 healthy individuals were studied. To see the difference in CVA between RP patients and normal controls, only subjects with standard VA of 1.0 (20/20) or better were included. This was a cross-sectional study. CVA in various light conditions was measured with CAT-2000 and was compared between patients and controls. CVA of patients was further analyzed for association with other parameters including foveal retinal thickness, outer nuclear layer thickness, the status of inner segment/outer segment junction measured with optical coherence tomography (OCT), and visual field mean deviation (MD) measured with Humphrey field analyzer 10-2 program.Results:CVA impairment was evident in RP patients compared to controls (P < 0.01, in all measurement conditions). Multivariate analysis showed association of logarithm of the minimum angle of resolution (logMAR) with CVAs in several conditions. None of the OCT measurements was associated with CVA. When patients were divided into three groups based on MD, the most advanced group (MD worse than or equal to –20 dB) showed impairment of mesopic CVA (P < 0.05, under mesopic condition of 100% without glare, with glare, and 25% without glare).Conclusion:CVA impairment was confirmed in RP patients, especially in advanced cases. CVA measured with CAT-2000 may be a useful tool for assessing foveal function in RP patients.

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Section: Discussionsupporting

confidence: 55%

Contrast visual acuity in patients with retinitis pigmentosa assessed by a contrast sensitivity tester

Oishi

Nakamura

Hangai

et al. 2012

Indian J Ophthalmol

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“…Our results were thus similar to those in previous studies using binocular night vision goggles that block natural vision [10,11,13,14]. The greatest advantage of our device is that it enables subjects to use their own eyes to recognize objects that they can see, and use the display as a supplement to see the objects they cannot see.…”

Section: Discussionsupporting

confidence: 88%

“…Since the 1970s, several types of devices have been evaluated to address mobility problems due to night blindness [7][8][9][10][11][12][13][14]. Berson et al [7] first reported the helpfulness of a night vision enhancement device based on a military light-intensifier.…”

Section: Introductionmentioning

confidence: 99%

“…Although improved versions were developed, these devices proved unacceptable [8,9]. Binocular night vision goggles have the potential to improve mobility problems associated with night blindness [10,11,13,14]. However, the opaque display around the Electronic supplementary material The online version of this article (doi:10.1007/s10384-014-0354-0) contains supplementary material, which is available to authorized users.…”

Section: Introductionmentioning

confidence: 99%

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Development and evaluation of a visual aid using see-through display for patients with retinitis pigmentosa

Ikeda

Suzuki²,

Kuramata³

et al. 2014

Jpn J Ophthalmol

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“…One small study found that while night-scopes did provide people with RP with improved night vision, the reduced field (about 40 degrees) and cumbersome headsets interfered with head and eye scanning, making the devices useful only for spotting tasks. 138 Other studies have reported on the encouraging development of smaller and easier to use night vision goggles, 165 with some reporting an improvement in walking speeds in real-world night environments. 166,167 Currently, night vision goggles are still an interesting experimental option and should be backed up with a long cane.…”

Section: Night Vision Aidsmentioning

confidence: 99%

Retinitis pigmentosa: visual function and multidisciplinary management

Herse

2005

Clinical and Experimental Optometry

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Retinitis pigmentosa (RP) is a leading cause of blindness and visual disability in younger people. Optometrists have a major role in detecting RP and in reducing the visual disability associated with RP. This review summarises the literature relating to visual function in people with RP, with particular attention given to night‐blindness, visual acuity decrease and visual field contraction. The range of low vision aids available for people with RP is reviewed and suggestions given on aids that have been found to be most successful. Most importantly, this review overviews the range of services available to people with RP and emphasises how optometrists need to work with a network of professionals to ensure the best possible visual outcomes for people with RP. Particular mention is made of current findings relating to orientation and mobility training, driving, sensory substitution and adaptive technology. The modern optometrist needs to be aware of the multiple needs of people with RP and have the ability to link them with the professionals best able to help them.

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Evaluation of the Night Vision Spectacles on patients with impaired night vision

Cited by 23 publications

References 8 publications

Contrast visual acuity in patients with retinitis pigmentosa assessed by a contrast sensitivity tester

Contrast visual acuity in patients with retinitis pigmentosa assessed by a contrast sensitivity tester

Development and evaluation of a visual aid using see-through display for patients with retinitis pigmentosa

Retinitis pigmentosa: visual function and multidisciplinary management

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