Monitoring visual field progression

Rosa, Manuel González de la; González-Hernández, Marta

doi:10.1136/bjo.2010.188334

British Journal of Ophthalmology

2010

DOI: 10.1136/bjo.2010.188334

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Monitoring visual field progression

Manuel González de la Rosa

Marta González-Hernández

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Cited by 3 publications

References 13 publications

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Pulsarperimetrie

Rosa¹,

González-Hernández²

2013

Ophthalmologe

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We present a review and update on Pulsar perimetry, which combines temporal frequency, contrast and spatial frequency stimuli. The effects of age, visual acuity, and learning on results are described. Data on threshold fluctuation, signal-to-noise ratio, and the possibility of reducing noise with filtering techniques are provided. We describe its dynamic range and the possibility of compensating for profound defects. Finally, we show the results obtained in normal patients and in those with ocular hypertension or initial glaucoma, as well as an analysis of glaucoma progression.

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Pulsarperimetrie

Rosa¹,

González-Hernández²

2013

Ophthalmologe

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A Strategy for Averaged Estimates of Visual Field Threshold

Rosa

González-Hernández

2013

Journal of Glaucoma

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Comparison between two fast threshold strategies: SPARK and SITA in normal subjects

Foo

Cubbidge

Heitmar

2020

European Journal of Ophthalmology

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Background Numerous fast threshold strategies have been developed in perimetry which use maximum likelihood approaches to estimate the threshold. A recent approach to threshold estimation has been developed estimating the threshold from a limited number of test points which further reduces examination time. This strategy, SPARK, has not been compared to the SITA strategy. The aim of this study was to compare SPARK with SITA in a normal cohort to evaluate within and between strategy agreement in threshold estimates. Methods A total of 83 normal subjects each underwent two visual field examinations with SITA and SPARK on two separate occasions on a randomly selected eye. The eye examined and the order of strategy examined first was randomised but remained constant over the two perimetry visits. Results Visual field examination with SPARK Precision was on average 33% faster than SITA Standard. A positive correlation between group mean sensitivities of SITA Standard and SPARK Precision (rho = 0.713, p < 0.001) was found. In total, 95% of stimulus locations were located within the 95% limits of agreement and linear regression on the differences in sensitivities showed no statistically significant proportional bias (t = 1.713, p = 0.09). Pointwise analysis showed SITA Standard had significantly larger variability for individual stimulus locations examined over two visits when compared to SPARK (t = 9.175, p < 0.001). Conclusion The clinical examination of SPARK yields a sensitivity profile similar to SITA but in a faster examination time. The lower threshold variability of SPARK may be as a result of data smoothing in the threshold estimation process.

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Monitoring visual field progression

Cited by 3 publications

References 13 publications

Pulsarperimetrie

Pulsarperimetrie

A Strategy for Averaged Estimates of Visual Field Threshold

Comparison between two fast threshold strategies: SPARK and SITA in normal subjects

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