@article{discovery10049766, journal = {Neuro-Ophthalmology}, pages = {349--355}, volume = {42}, note = {This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any way.}, title = {The Pulfrich phenomenon: Practical implications of the assessment of cases and effectiveness of treatment}, number = {6}, year = {2018}, month = {April}, url = {https://doi.org/10.1080/01658107.2018.1446537}, issn = {1744-506X}, abstract = {The Pulfrich phenomenon, originally described in normal observers, is a treatable disorder of the perception of movement in depth in cases of unilateral or asymmetric optic neuropathy. Treatment is highly bespoke and factors influencing treatment response and failure remain unclear. We assessed 25 adults with suspected Pulfrich phenomenon due to a range of conditions in two tertiary referral centres. Monocularly tinted spectacles were successful in reducing symptoms of the Pulfrich phenomenon under daylight conditions in nine subjects, eight of whom had optic neuritis. These spectacles were not effective at night and in patients with visual field defects due to ischaemic optic neuropathy, glaucoma, optic disc drusen or severe peripapillary retinal nerve fibre loss on optical coherence tomography.}, keywords = {Visual illusions, visual rehabilitation, Pulfrich, depth perception, optic neuritis}, author = {Farr, J and McGarva, E and Nij Bijvank, J and van Vliet, H and Jellema, HM and Crossland, MD and Petzold, A} }