Impact of Natural Blind Spot Location on Perimetry

Impact of Natural Blind Spot Location on Perimetry

We study the spatial distribution of natural blind spot location (NBSL) and its impact on perimetry. Pattern deviation (PD) values of 11,449 reliable visual fields (VFs) that are defined as clinically unaffected based on summary indices were extracted from 11,449 glaucoma patients. We modeled NBSL d...

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Veröffentlicht in:Scientific reports 2017-07, Vol.7 (1), p.6143-9, Article 6143
Hauptverfasser: Wang, Mengyu, Shen, Lucy Q., Boland, Michael V., Wellik, Sarah R., De Moraes, Carlos Gustavo, Myers, Jonathan S., Bex, Peter J., Elze, Tobias
Format: Artikel
Sprache:eng
Schlagworte:
631/114/2397
692/53/2421
Automation
Glaucoma
Humanities and Social Sciences
multidisciplinary
Patients
Physiology
Receptive field
Science
Science (multidisciplinary)
Spatial distribution
Standard deviation
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Zusammenfassung:We study the spatial distribution of natural blind spot location (NBSL) and its impact on perimetry. Pattern deviation (PD) values of 11,449 reliable visual fields (VFs) that are defined as clinically unaffected based on summary indices were extracted from 11,449 glaucoma patients. We modeled NBSL distribution using a two-dimensional non-linear regression approach and correlated NBSL with spherical equivalent (SE). Additionally, we compared PD values of groups with longer and shorter distances than median, and larger and smaller angles than median between NBSL and fixation. Mean and standard deviation of horizontal and vertical NBSL were 14.33° ± 1.37° and −2.06° ± 1.27°, respectively. SE decreased with increasing NBSL (correlation: r = −0.14, p 
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-017-06580-7