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

NCT ID: NCT05968547

Last Updated: 2023-08-01

Basic Information

• Recruitment Status: UNKNOWN
• Total Enrollment: 100 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2023-08-25
• Study Completion Date: 2023-12-25

Brief Summary

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.

Detailed Description

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.

Conditions

Glaucoma

Study Design

• Observational Model Type: COHORT
• Study Time Perspective: PROSPECTIVE

Study Groups

Glaucoma patients questionnaire

Questionnaire to understand patients driving needs and understanding of driving vision standards

No interventions assigned to this group

Visual acuity standards

DVLA vision standard estimated in the clinic is compared with standandard car number plate outside the clinic. We estimate the vision in the clinic using standard visual acuity chart and electronic number plate vision and compare with number plate vision estimated outside the clinic by the patient. Instruction to estimate number plate vision will be provided to the patient.

Driving assessment in glaucoma patient

Intervention Type: OTHER

One group of patient will be given questionnaire while the other group will respond to a questionnaire while the other group will have vision assessment. Patients could participate in both groups.

Interventions

Driving assessment in glaucoma patient

One group of patient will be given questionnaire while the other group will respond to a questionnaire while the other group will have vision assessment. Patients could participate in both groups.

Intervention Type: OTHER

Other Intervention Names

1. questionnaire to patient. 2.Assessment of vision using visual acuity chart and number plate vision

Eligibility Criteria

Inclusion Criteria

• All patients attending the glaucoma clinic will be eligible for the survey.
• Both drivers and non-drivers will be included in the study.

• Glaucoma patients with habitual vision of 6/19 or better at least in one eye (whether driving or not driving).

Exclusion Criteria

• All the patients attending glaucoma clinic, willing to participate in the study, will be eligible to participate in the survey and will not be excluded from the study.

• Patients with a binocular habitual visual acuity of less than 6/19 will not be able to eligible to participate in qualitative vision assessment.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 110 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Manchester University NHS Foundation Trust

OTHER_GOV

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Subash Sukumar

Role: PRINCIPAL_INVESTIGATOR

Manchester Royal Eye Hospital

Locations

Manchester Royal Eye Hospital

Manchester, , United Kingdom

Countries

United Kingdom

Central Contacts

Subash Sukumar

Role: CONTACT

subash.sukumar@mft.nhs.uk

0161-276-6583

Subash Sukumar

Role: CONTACT

subash.sukumar@mft.nhs.uk

01612766583

Facility Contacts

Subash Sukumar

Role: primary

subash.sukumar@mft.nhs.uk

01612766583

Other Identifiers

B00964

Identifier Type: -

Identifier Source: org_study_id