Visual field examination using a video projector: comparison with Humphrey perimeter
نویسندگان
چکیده
منابع مشابه
Visual field examination using a video projector: comparison with Humphrey perimeter
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 ...
متن کاملVisual field examination method using virtual reality glasses compared with the Humphrey perimeter
PURPOSE To present a visual field examination method using virtual reality glasses and evaluate the reliability of the method by comparing the results with those of the Humphrey perimeter. MATERIALS AND METHODS Virtual reality glasses, a smartphone with a 6 inch display, and software that implements a fast-threshold 3 dB step staircase algorithm for the central 24° of visual field (52 points)...
متن کاملA Comparison of Perimetric Results from a Tablet Perimeter and Humphrey Field Analyzer in Glaucoma Patients
PURPOSE To determine the correlation between the perimetric outcomes from perimetry software Melbourne Rapid Fields (MRF) run on an Apple iPad tablet and those from the Humphrey Field Analyzer (HFA). METHODS The MRF software was designed with features including variable fixation and fast thresholding using Bayes logic. Here, we report a cross-sectional study on 90 eyes from 90 participants: 1...
متن کاملA comparison of global indices between the Medmont Automated Perimeter and the Humphrey Field Analyzer.
BACKGROUND Two commonly used perimeters in Australia are the Humphrey Field Analyzer II (HFA) and the Medmont Automated Perimeter (MAP). Each device describes the visual field in terms of numerical values called global indices; however, these values are not interchangeable between devices. This study was designed to directly compare the global indices of HFA and MAP visual fields. METHODS 63 ...
متن کاملComparison of contrast sensitivity, visual acuity, and Humphrey visual field testing in patients with glaucoma.
BACKGROUND Despite their normal or near-normal Snellen visual acuity, patients with glaucoma often complain of "poor" vision. OBJECTIVE To investigate the relationship between large-letter contrast sensitivity, high-contrast visual acuity, and visual field defects in patients with glaucoma who have 20/40 or better visual acuity. DESIGN Prospective, cross-sectional case series. PATIENTS AN...
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ژورنال
عنوان ژورنال: Clinical Ophthalmology
سال: 2014
ISSN: 1177-5483
DOI: 10.2147/opth.s54524