The L/Certified by Lexus warranty includes coverage for a complimentary loaner car, Roadside Assistance * and Trip Interruption Service. It is valid for three years from your date of purchase or 100,000 total vehicle miles, whichever comes first.ARRANTY. Lexus confidently stands behind these exceptional vehicles with the L/Certified Limited Warranty, * which lasts for three years from your date of purchase or 100,000 total vehicle miles.
What is a visual field test? A visual field test is a method of measuring an individual's entire scope of vision, that is their central and peripheral (side) vision. Visual field testing maps the visual fields of each eye individually and can detect blind spots (scotomas) as well as more subtle areas of dim vision.
Key points. 1  Visual field (VF) is a term used to describe how far you can see to the side. 2  Visual acuity (VA) is defined as the clarity of the image seen by the eye. 3  20/20 vision does not mean perfect vision. 4  The term legally blind means different things in different provinces and states.o understand the vision of someone with an eye condition, it can be helpful to know what normal vision is like. Imagine a scenario where two people are sitting on the couch in front of you. If you look directly at Person A, you are able to use your macula, or central vision, to see the details of their head and face.