The medical examination report (D4) includes a vision assessment that must be filled in by a doctor, optician or optometrist.
Some doctors will be able to fill in both the vision and medical assessment sections of the report. If your doctor is unable to fully answer all the questions on the vision assessment, you must have it filled in by an optician or optometrist.
Further information can be found in the leaflet INF4D.
D2 application form
You can’t download the D2 application form because it includes features that can’t be printed. You have to order a printed copy from DVLA.