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NR. 2(II)/2005
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Nierefrakcyjny
akomodacyjny eksces konwergencji u dzieci i młodzieży
Non-refractive Accomodative Convergence Excess in Children and
Adolescents
Anna Kubatko-Zielińska
Pracownia Patofizjologii Widzenia i Neurookulistyki, Katedra i
Klinika Okulistyki Collegium
Medicum Uniwersytetu Jagiellońskiego w Krakowie
Kierownik: dr hab. med. Bożena Romanowska-Dixon |
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| Summary: |
This paper intends to
present some accomodative disturbances which cause
difficulties in reading and should be differentiated
from dyslexia. Reading problems are often linked with
accomodative disorders, most often caused by none or
wrongly corrected refractive errors. In 1958 Costenbader
first differentiated non-refractive accommodative
convergence excess with high AC/A ratio into two types:
the hyperkinetic and hypoaccomodative one. Clinical data
of 15 patients with non-refractive accomodative
convergence excess were presented. Hyperkinetic and
hypoaccomodative patients need bifocals to treat
convergence excess and to avoid reading difficulties. |
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| Key words: |
convergence excess, AC/A
ratio, bifocals. |
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