Visual field examination using a video projector: comparison with Humphrey perimeter

Autor: Brouzas D, Tsapakis S, Nitoda E, Moschos MM
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Clinical Ophthalmology, Vol 2014, Iss default, Pp 523-528 (2014)
Druh dokumentu: article
ISSN: 1177-5483
23419083
Popis: Dimitrios Brouzas, Stylianos Tsapakis, Eirini Nitoda, Marilita M Moschos First Department of Ophthalmology, Medical School, University of Athens, Greece Purpose: To present a method of visual field examination using a video projector. Also, we compare our results with those of a Humphrey perimeter, which is accepted as standard in automated perimetry. Materials and methods: Software implementing a full-threshold 4-2-step staircase algorithm for the central 30-2 of the visual field (76 points) has been developed and tested in nine eyes of seven patients using an Epson TW 700 video projector. The results were compared to those obtained from the same patients using the Humphrey perimeter. Results: High correlation between the video projector visual fields and those of the Humphrey perimeter was found. The point-to-point correlation coefficient ranged from 0.75 to 0.90, with P
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