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.
Experiment Steps. 1  The test subject holds the poster board in front of them while bending it around their face, so that the ends meet their ears and rests about a foot away from their face. Your eyes should be level with the fixation point as well. 2  The test subject now focuses on the black dot in front of them.