albinism, astigmatism, astigmia, bad eyesight, blurred vision, deafness, defect of vision, dim-sightedness, dogmatism, double sight, double vision, faulty eyesight, imperceptiveness, impercipience, imperfect vision, incognizance, incomprehension, insensibility, mindlessness, nearsightedness, nonrealization, nonrecognition, nonunderstanding, nystagmus, partial blindness, positiveness, purblindness, reduced sight, shortsightedness, tunnel vision, unapprehendingness, unawareness, unconsciousness, undiscerningness, unmindfulness, unperceptiveness, unpersuadableness, unwittingness