As mentioned above, the minimum standard for driving is to have a visual acuity of at least decimal 0.5 which is the equivalent of 6/12 on the Snellen scale. It's important to note that you must also have an adequate field of vision which your optician can tell you about. DVLA. Motoring. Here's everything you need to know about the Snellen DVLA vision field test. advice please - I have to book to have a DVLA vft. The Specsaver branches they have offered me have either Zeus’s HFA3 830 or Humphrey 740i machines. Which are the best/easiest please as this is my first time. Naturally I have had many vft in the past at the eye clinic and opticians, but I understand the machines at A visual field test measures how well you can see above, below, and on either side of you. This test can help diagnose diseases of the eye, optic nerve, and central nervous system. Your vision relies on your retina, optic nerves, and your brain. Vision loss occurs due to diseases that affect any part of this pathway. AHA copyrighted materials including the UB‐04 codes and descriptions may not be removed, copied, or utilized within any software, product, service, solution or derivative work without the written consent of the AHA. If an entity wishes to utilize any AHA materials, please contact the AHA at 312‐893‐6816. With this perimeter, we can perform the ‘120 Point Esterman Test’ which is the visual field test commonly required by the DVLA. The cost to perform the test is £35, payable before commencement of the test. Please note that this fee will cover the cost of performing the test and a paper copy of the results. Specsavers won a 4 year contract in 2014 to supply field of vision and visual acuity testing for DVLA. The tender for a new contract has been delayed so a 9 month extension to the Specsavers contract was agreed late last year to allow enough time to complete the new tender. Relationship to Diabetes. Type 1. Aug 15, 2016. #6. My licence was revoked on both low visual accuity and failing the fields test. I had to go to a DVLA approved optician a few months after treatment had finished to try and get my licence back - the DVLA sent me a list of opticians I could make an appointment with- this was about 20 years back Most people with glaucoma keep their driving license, but you must tell the DVLA or DVA about your glaucoma. This booklet tells you what you must do and explains the process. It applies to England, Wales, Scotland and Northern Ireland, and is a must for all drivers with glaucoma. As a UK based charity, we are only able to send literature free EofaEPr.