Evaluation of Patients' Requirements for Improved Advice and Guidance on Vision Standards for Driving in Glaucoma

Glaucoma

Driving Standards, DVLA, Glaucoma

Glaucoma can affect both central and peripheral vision. Clinicians need to discuss with patients the vision related driving standards and any specific limitations their patients may have relating to their ability to drive with glaucoma. According to the recent guidelines by the General Optical Council (GOC), clinicians are advised to make sure that the Driving and Vehicle Licensing Agency (DVLA) is informed about patients who do not meet the driving vision standards. There are several limitations in making a professional judgement about a patient's suitability to drive and in providing appropriate advice to patients. The main concern is discussing this sensitive issue with the patient based upon available clinical evidence e.g. vision or visual field and directing them to inform the DVLA of their condition or potentially advising them to stop driving. The purpose of this research is to investigate the two main issues 1. To explore patients' understanding of standards of vision for driving. 2. Comparing the standards of vision for driving estimated in the clinic with number plate vision. We propose to do a mixed methods analysis using a patient survey and quantitative investigation of driving vision standards.

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.

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United Kingdom