Updated: Vision assessment. A note has been added before question 1 Medical assessment. Section 1 question 4 has been amended to read If NO, go to section 2. Section 4A. Question 3 (P.C.1.) has been amended to read (P.C.I.).

If you’re aged 45 to 65, you have to fill in a D4 and send it to DVLA if you haven’t done so in the past 5 years.

From the age of 65, your licence will need to be renewed each year and your application must be accompanied by a completed D4 medical report form.

https://www.gov.uk/government/publications/d4-medical-examination-report-vision-assessment--2