Accuracy of the objective autorefractometer (AR.) Nidek-1100 in determination
of correction for refractive errors was studied in 1200 eyes of
600 patients. A.R. spherical power readings were correct in 32.55% of
eyes, over correct from 0.25 to o.50 D. in 55.01% and > 0.75 D. in 9.85%,
while it was undercorrect from 0.25 to 0.50 D. in 2.59%. Cylinderical power
readings were correct in 29.12%, over correct from 0.25 to 0.50 D. in
63.31% and > 0.75 D in 6.9%, while it was under correct in 0.67%.
Accuracy of spherical power determination in young age was less than
old age, while patients age hod no effect on cylinderical power. A.R.was
accurate in cylinderical axis determination in 94.35% of eyes.
Objective autorefractometer could be considered a preliminary rapid
guide in determination of correction for refractive errors, however, its
readings should not be prescribed without checking its subjective acceptance
by the patient. |
