Home-training for hemianopia (partial blindness)

INTERVENTION: 1. Two intervention groups, namely visuomotor training and computer training, will do visual exploration and reading training using the DREX (Durham Reading and Exploration) program. The visuomotor training group will do the training on a touchscreen tablet, while the computer training group will run the training using a laptop independently at their home 2. A control group (standard care) will continue any existing treatment given by their doctors or therapists 3. All study groups are required to complete pre‐ and post‐training assessments to measure the reading and visual search ability as well as a several quality of life scales CONDITION: Hemianopia following acquired post‐chiasmatic brain injury such as stroke ; Eye Diseases ; Hemianopia PRIMARY OUTCOME: 1. Reading is measured using an in‐app reading task* and a reading task using a modified passage from ‘The Grey Gentlemen’ (Ende, 1974; Aimola et al., 2014) at baseline, 6 weeks, 12 weeks and 3 months follow up; 2.Visual Exploration is measured using an in‐app visual exploration task* and the 'Find‐the‐Number' visual search task (Aimola et al., 2014) at baseline, 6 weeks, 12 weeks and 3 months follow up; ; * Those described as being ‘in‐app’ are part of the Durham Reading and Exploration (DREX) app. SECONDARY OUTCOME: 1. Short‐term memory is measured using an in‐app short‐term memory task* at baseline, 6 weeks, 12 weeks and 3 months follow up; 2. Mood and depression is measured using the 21‐item Beck Depression Inventory II (BDI II) at baseline, 6 weeks, 12 weeks and 3 months follow up; 3. Motivation towards rehabilitation is measured using the 31‐item Motivation for Traumatic Brain Injury Rehabilitation Questionnaire (MOT‐Q) at baseline, 6 weeks, 12 weeks and 3 months follow up; 4. Activities of Daily Living (ADL) is measured using an in‐app 6‐item ADL questionnaire* and the 10‐item Visual Impairment Questionnaire at baseline, 6 weeks, 12 weeks and 3 months follow up; 5. Attitude and goals towards rehabilitation is measured using the 10‐item Self‐Ability and Attitude Questionnaire at baseline, 6 weeks, 12 weeks and 3 months follow up; ; * Those described as being ‘in‐app’ are part of the Durham Reading and Exploration (DREX) app. INCLUSION CRITERIA: 1. Adults aged 18 years or above who have been diagnosed with a non‐progressive visual field defect (for at least 3 months) due to post‐chiasmatic injury 2. Good cognitive ability 3. Able to give consent