For purposes of sections 3-10e, 4a-60, subdivision (12) of § 38a-816 and sections 46a-58, 46a-60, 46a-64, 46a-70 to 46a-73, inclusive, 46a-75, 46a-76 and 52-175a:

(a) An individual is blind if his central visual acuity does not exceed 20/200 in the better eye with correcting lenses, or if his visual acuity is greater than 20/200 but is accompanied by a limitation in the fields of vision such that the widest diameter of the visual field subtends an angle no greater than twenty degrees;

(b) An individual is physically disabled if he has any chronic physical handicap, infirmity or impairment, whether congenital or resulting from bodily injury, organic processes or changes or from illness, including, but not limited to, epilepsy, deafness or hearing impairment or reliance on a wheelchair or other remedial appliance or device.