The two main objectives that we propose to study in this project are
1. Descriptive understanding of patients' perception of their driving needs and their understanding of driving standards. This will be studied with the help of a survey questionnaire to learn about patients' driving needs, sight history, understanding of DVLA vision standards and the driving advice given to them. Understanding glaucoma patients' general perceptions about standards of vision for driving and their driving needs will help us to improve communication with the patients and to give the best possible advice about standards of vision for driving.
2. Quantitative comparison of standards of vision for driving as required by DVLA and clinical vision assessment in glaucoma patients. The limitations to meet the vision standard for driving will be assessed in glaucoma patients in the clinic and outside the clinic as required by DVLA standards of vision for driving. In the clinic, vision will be assessed by checking if the patient can binocularly read the 6/12 line on the vision chart and electronic number plate test used in the clinic. The results will be compared with a self-assessed number plate vision - a standard requirement to meet DVLA's standard of vision for driving. Understanding the clinical estimation of binocular vision, patients' ability to read the number plate in clinic and to self-assess their number plate vision will help the clinician to know patients' abilities and give evidence-based advice to the glaucoma patient about meeting the DVLA standards of vision.
