This resource is to help those designing and commissioning eye care improve the value of their services. It is arranged in to the following sections: Summary and recommendations Introduction What is low vision? What are the causes of and scope of prevention for low vision? How many people have low vision? What are the best value diagnostic tests? What are the best value treatments? How can individuals and carers be best supported long term? Successful systems of care: pathways and service models How to compare services based on activity, quality and outcome.