A Randomised Controlled Trial of Treatment for Post-Stroke Homonymous Hemianopia: Screening and Recruitment

A pilot randomized controlled trial comparing effectiveness of prism glasses, visual search training and standard care in hemianopia

“…Of these, 993 patients (84.8%) did not meet the inclusion criteria, 91 patients declined to participate (7.8%) leaving 87 patients in the study (7.4%). The reasons for not being eligible and for refusing to consent were recorded and published …”

“…Evaluation of recruitment and consent has been conducted for this trial and published previously . We experienced greater recovery for hemianopia than previously reported in the literature and this should be taken into consideration when planning future trials with options to increase number of participating recruitment centres.…”

“…Recruitment and screening have been reported elsewhere. In summary, 1171 patients were assessed for eligibility between 17 May 2011 and 9 September 2013.…”

Visual Field Loss: Integrating Overlayed Information to Increase the Effective Field of View

“…Compensation interventions are targeted at training people to maximise the usefulness of their remaining vision. This includes training on making rapid, saccadic eye movements [ 21 , 22 ], visual search strategies [ 23 , 24 , 25 , 26 , 27 , 28 , 29 ], eye-movements for reading [ 24 , 29 ] and new strategies of making use of cues such as colour in everyday activities [ 30 ]. The focus of all of these is to change the strategies developed through a lifetime of unimpaired vision so that they can be optimised for that person’s new visual field.…”

“…Substitution interventions make use of optical devices or modifications of the environment to improve visual functioning. These include the use of optical prisms within spectacles that act to shift the visual field [ 25 , 26 , 27 , 31 , 32 , 33 , 34 , 35 ] and typoscopes to provide a guide to eye movements to facilitate reading [ 6 , 8 , 36 ].…”