Author/Editor     Kosec, Dragica
Title     Operativna korekcija divergentnega strabizma
Type     monografija
Place     Ljubljana
Publisher     Medicinska fakulteta
Publication year     2003
Volume     str. 53
Language     slo
Abstract     Background In divergent strabismus one eye diverges outwards. The visual axes of both eyes are diverged, meaning that each eye can look at a different object. Consequently this causes problems in brain and the result is suppression, i.e. one image is cut off. Due to this wrong feedback, the divergence worsens. It is possible by surgery to adjust the eye to look straight forward, however, after surgery there is a tendency of the eye to slip back into the initial, divergent position. The purpose of this work was to demonstrate possible impacts on the stability of the squint angle after surgery. Considering physiological laws of parallel vision and the function of external eye muscles and their regulation, we have observed the binocular function, visual acuity, refraction error, age and type of surgery. These parameters were observed in individual patients before the surgery, after the surgery and after 3 year folow-up after the operation. The study comprises the patients which were operated at the Eye Clinic Ljubljana from 1978 to 1998. Methods In the retrospective study 130 patients with divergent strabismus were analysed. All patients were treated at the Eye Clinic Ljubljana, including the surgery, in the period from 1978-98. We studied the angle of deviation prior to surgery, after it and three years after the surgery. Only patients with one surgery have been taken into account. The study considered the age, sex, the presence and type of refraction anomalies, amblyopia, binocular functions and the surgical methods. Possible impacts of these factors on the stability of squint angle three years after the surgery were studied. The data were drawn from the existing records. (Abstract truncated at 2000 characters)
Descriptors     EXOTROPIA
VISION, BINOCULAR
REFRACTION, OCULAR
VISUAL ACUITY
RETROSPECTIVE STUDIES
AGE FACTORS
SEX FACTORS
TREATMENT OUTCOME