Threshold Amsler grid as a screening tool for asymptomatic patients on hydroxychloroquine therapy
نویسندگان
چکیده
منابع مشابه
Threshold Amsler grid as a screening tool for asymptomatic patients on hydroxychloroquine therapy.
BACKGROUND/AIMS Patients taking hydroxychloroquine (HCQ) are at risk of developing classic bull's eye maculopathy. Currently, the standard Amsler grid (AG) is one of the most useful methods to identify such lesions. However, AG is a suprathreshold target and may not detect relative central scotomas. The aim of this study was to determine if the threshold Amsler grid (TAG) test, which varies lig...
متن کاملAccuracy of Amsler grid in screening for chloroquine retinopathy.
OBJECTIVE Determine the accuracy, sensitivity, and specificity of an Amsler grid testingfor chloroquine retinopathy screening. MATERIAL AND METHOD One hundred and forty patients who received chloroquine phosphate or hydroxychloroquine sulfate and attended the rheumatology clinic of BMA Medical College and Vajira Hospital between March 2008 and May 2009 were included. The patients underwent Am...
متن کاملThree-dimensional computer-automated threshold Amsler grid test.
We describe a novel method for testing a visual field that employs a computer monitor with displays of varying contrast that permits unprecedented resolution and characterization of the structure of scotomas in three dimensions. Patients are placed in front of a touch-sensitive computer screen at a fixed distance. With one eye covered, they focus on a central fixation marker and trace with thei...
متن کاملNovel 3 D Computerized Threshold Amsler Grid Test
Purpose: To introduce a novel 3D computerized threshold Amsler grid test, developed by Fink and Sadun, that allows for a novel characterization of the structure of visual field defects in three dimensions (see http://www.wfbabcom5.com/wf335.htm). Methods: With one eye covered, patients are placed in front of a computer monitor displaying an Amsler grid. While focusing on a varying central fixat...
متن کاملNovel 3D computer-automated threshold Amsler grid visual field testing of scotomas in patients with glaucoma.
PURPOSE Three-dimensional (3D) computer-automated threshold Amsler grid testing was used to identify and characterize scotomas typical of glaucoma. METHODS The 3D test exhibits a grid on a computer screen at a preselected grayscale and angular resolution, and allows patients to trace those areas on the grid that are missing in their visual field using a touch screen. Eleven eyes in patients w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: British Journal of Ophthalmology
سال: 2005
ISSN: 0007-1161
DOI: 10.1136/bjo.2004.050120