Ocena punktu bliży w zezach zbieżnych z uwzględnieniem różnego stopnia nadwzroczności
Estimation of the Near Point in Esotropia Considening Hypermetropia of Different Degree
Danuta Węgrzynowska, Dorota Tomaszkiewicz-Mondry, Janusz Czajkowski
Klinika Okulistyki Instytutu "Centrum Zdrowia Matki Polki" w Łodzi Kierownik: prof. dr hab. med. Janusz Czajkowski
Summary: Purpose: The aim of the study is to explain and analyse weakened accomodation among children and find out whether incorrect accomodation concerns both eyes or comprises only one eye with esotropia. We are also curious about correlation between visual defects. Material and methods: 36 patients between 8 to 12 years of age were selected to the medical examination of near points. Each of them had esotropia. They were given special examination concerning their visual acuity of far and near points, measurement of strabismus angle, visibility of both left and right eye, examination of near point in each eye. We examined their refraction after sequential administration of atropine eye-drops. All patients were divided into 3 groups according to the degree of refraction error (small, moderate, severe hypermetropia). Results: First analysis showed difference between distance of the point in the eye with strabismus and the leading one. The near point of the eye with strabismus was located further, what proved that accomodation was smaller. All results were analyzed statistically and the result was significant. Additionally, we did not find any correlation between their visual defects. Conclusions: 1. Esotropic eye has weaker accomodation. 2. Accomodation is not dependent on the size of refractive errors in the group of patients with hypermetropia.
Keywords: accomodation, near point, esotropia, hypermetropia.