Visual function alterations in essential tremor: A case report  

作　　者：David P.Pinero Begona Monllor Vicenta Moncho Vicent J.Camps Dolores de Fez 

机构地区：[1]Grupo de Optica y Percepci
on Visual(GOPV)Department of Optics,Pharmacology and Anatomy University of Alicante,Spain [2]Department of Ophthalmology(OFTALMAR)Medimar International Hospital,Alicante,Spain [3]Foundation for the Visual Quality(Fundaci
on para la Calidad Visual,FUNCAVIS)

出　　处：《Journal of Innovative Optical Health Sciences》2015年第5期94-98,共5页创新光学健康科学杂志（英文）

摘　　要：Our purpose is to report alterations in contrast sensitivity function(CSF)and in the magno,parvo and koniocellular visual pathways by means of a multichannel perimeter in case of an essential tremor(ET).A complete evaluation of the visual function was performed in a 69-year old patient,including the analysis of the chromatic discrimination by the Fansworth–Munsell 100 hue test,the measurement of the CSF by the CSV-1000E test,and the detection of potential alteration patterns in the magno,parvo and koniocellular visual pathways by means of a multichannel perimeter.Visual acuity and intraocular pressure(IOP)were within the ranges of normality in both eyes.No abnormalities were detected in the fundoscopic examination and in the optical coherence tomography(OCT)exam.The results of the color vision examination were also within the ranges of normality.A signi¯cant decrease in the achromatic CSFs for right eye(RE)and left eye(LE)was detected for all spatial frequencies.The statistical global values provided by the multichannel perimeter confirms that there were significant absolute sensitivity losses compared to the normal pattern in RE.In the LE,only a statistically significant decrease in sensitivity was detected for the blue-yellow(BY)channel.The pattern standard deviation(PSD)values obtained in our patient indicated that there were significant localized losses compared to the normality pattern in the achromatic channel of the RE and in the red-green(RG)channel of the LE.Some color vision alterations may be present in ET that cannot be detected with conventional color vision tests,such as the FM 100 Hue.

关 键 词：Multichannel perimetry essential tremor color vision visual pathways contrast sensitivity 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]