Washington Revised Code Title 28A. Common School Provisions § 28A.155.105. Braille instruction--Definitions

(a) Has a visual acuity of 20/200 or less in the better eye with conventional correction or having a limited field of vision such that the widest diameter of the visual field subtends an angular distance not greater than twenty degrees;

(b) Is unable to read printed material at a competitive rate with facility due to functional visual impairment or lack of visual acuity; or

(c) Has a physical condition with a medical prognosis of a significant visual deterioration to the extent that (a) or (b) of this subsection could apply.