Driving is Freedom.
Inevitably, the first question a person with homonymous hemianopia will ask is "When can I drive?" And the answer is not a straight yes or no. What state do they live in? Aside from the visual field loss, how is the patient's cognition? How long have they been living with the condition? There are a lot of considerations.
Cars and Mirrors
Cars are designed for a fully sighted person. The system of mirrors is designed to make the driver aware of their surroundings as they navigate. But what happens when a person with a visual field loss takes the wheel? Massive blind spots! The person with homonymous hemianopia will no longer be able to use certain mirrors the way they are used to.
Adding additional mirrors to the car can help create awareness of the additional blind spots.
The Peli Lens and Driving
The oblique version of the Peli Lens can create up to 30 degrees of additional visual field on the blind side across the midline of the visual field. In some states, the Peli Lens can help meet the visual field requirements for a driver's license. While the Peli Lens can expand the visual field, it's still important to consider the additional blind spots traditionally covered by vision and mirrors.
Safety versus Legality
Due to the way various state laws are written regarding visual field and driving, some things that are legal won't necessarily be safe. And things that will help with safety aren't legally required.
Driving Blind Spots and Hemianopia