An examination
of the match between the two vision
assessments (not reported earlier) showed that 91 respondents whose
visual acuity fell in the moderately decreased to poor range rated their vision to be good to excellent and an additional 63 respondents whose
visual acuity fell in the normal to good range rated their vision as fair or poor.
Future research may gain further by assessing even more specific aspects
of visual function objectively (e.g., impairment in depth perception, extreme contrast or brightness sensitivity in addition to
visual acuity as assessed in NSHAP) and subjectively (e.g., self - reported trouble with reading newspaper print and recognizing people at a small distance in addition to the global
assessment of one's vision as assessed in NSHAP) in the study
of the effects
of vision on quality
of life and the capacity
of a good marriage to alter these effects.