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The aims of this study were to compare acuity estimates achieved with visual evoked potential (VEP) and acuity card techniques and to examine the success rates of each test in a group of multiply handicapped children. Subjects were 52 children (3-183 months) with multiple handicaps associated with prematurity (n = 17), congenital anomalies (n = 16), hypoxic insult (n = 10) and other disorders (n = 9). Success rates for completing the tests were: VEP 88% and acuity cards 85% (Keeler or Cardiff). The acuity card tests were less likely to be successfully completed in the severely disabled (p < 0.05) and in those children with nystagmus (p < 0.05). When both acuity cards were successful, results agreed to within +/- 1.75 octaves. Acuity card thresholds were significantly correlated with VEP thresholds (p < 0.02), but thresholds achieved with VEPs were better in children with poor vision.
R T Mackie, and
D L McCulloch, and
K J Saunders, and
J Ballantyne, and
R E Day, and
M S Bradnam, and
G N Dutton
August 1989,
Optometry and vision science : official publication of the American Academy of Optometry,
R T Mackie, and
D L McCulloch, and
K J Saunders, and
J Ballantyne, and
R E Day, and
M S Bradnam, and
G N Dutton
January 1976,
Clinical otolaryngology and allied sciences,
R T Mackie, and
D L McCulloch, and
K J Saunders, and
J Ballantyne, and
R E Day, and
M S Bradnam, and
G N Dutton
January 1974,
Journal of mental health administration,
R T Mackie, and
D L McCulloch, and
K J Saunders, and
J Ballantyne, and
R E Day, and
M S Bradnam, and
G N Dutton
January 1990,
Child: care, health and development,
R T Mackie, and
D L McCulloch, and
K J Saunders, and
J Ballantyne, and
R E Day, and
M S Bradnam, and
G N Dutton
June 1983,
The American journal of occupational therapy : official publication of the American Occupational Therapy Association,
R T Mackie, and
D L McCulloch, and
K J Saunders, and
J Ballantyne, and
R E Day, and
M S Bradnam, and
G N Dutton
February 1982,
Archives of physical medicine and rehabilitation,
R T Mackie, and
D L McCulloch, and
K J Saunders, and
J Ballantyne, and
R E Day, and
M S Bradnam, and
G N Dutton
November 1977,
American journal of mental deficiency,
R T Mackie, and
D L McCulloch, and
K J Saunders, and
J Ballantyne, and
R E Day, and
M S Bradnam, and
G N Dutton
May 2006,
Vaccine,
R T Mackie, and
D L McCulloch, and
K J Saunders, and
J Ballantyne, and
R E Day, and
M S Bradnam, and
G N Dutton
April 1978,
Mental retardation,
R T Mackie, and
D L McCulloch, and
K J Saunders, and
J Ballantyne, and
R E Day, and
M S Bradnam, and
G N Dutton
December 1979,
Developmental medicine and child neurology,
