The efficacy of low vision device training in a hospital based low vision clinic

Elizabeth Pearce (1) , Michael D Crossland (2) , Gary Rubin (3)

1 Moorfields Eye Hospital
2 UCL Institute of Ophthalmology
3 Institute of Ophthalmology London

Background/Aims Hospital based low vision services in the UK typically involve one consultation with an optometrist. In this study we investigate the effect of adding further low vision device training. Methods Participants were recruited from those attending their first low vision assessment (LVA). Participants completed the Massof Activity Inventory (MAI) questionnaire by telephone before their appointment. After LVA, participants were randomised to an intervention group (who received a further appointment to review device handling) or a control group. The MAI was readministered one and three months after the initial LVA. MAI data were converted to Rasch scores for goal difficulty. Results 96 participants completed the study. Both groups experienced a significant improvement in goal difficulty following low vision intervention, (p<0.0001), equivalent to a visual acuity improvement of approximately 0.55 logMAR. There was no significant difference in improvement between the group randomised to the training visit and those in the control arm (p=0.80). Conclusion Self-perceived difficulty with daily visual tasks decreases following a low vision appointment. An additional visit for device handling training resulted in no further improvement. This could be due to the relatively simple nature of the devices prescribed in this clinic.

Mots clés: Clinical Trial; Low vision aid; Rehabilitation

Elizabeth Pearce, Michael D Crossland, Gary Rubin. The efficacy of low vision device training in a hospital based low vision clinic. British Journal of Ophthalmology, 2010, 95 (1), pp.105. ⟨10.1136/bjo.2009.175703⟩. ⟨hal-00576176⟩