Przydatność testu Randota do oceny widzenia stereoskopowego u dzieci i młodych dorosłych
Usefulness of Randot Tests to Assess Stereoscopic Vision
Sebastian Sirek1, Paulina Wójcik1, Anna Kałuża-Wieczorek1, Joanna Wieczorek1, Dorota Pojda-Wilczek2
1 Studenckie Koło Naukowe Kliniki Okulistyki Katedry Okulistyki, Wydział Lekarski Śląskiego Uniwersytetu Medycznego w Katowicach
Opiekun Koła: dr hab. n. med. Dorota Pojda-Wilczek
2Katedra Okulistyki, Klinika Okulistyki Katedry Okulistyki, Wydział Lekarski Śląskiego Uniwersytetu Medycznego w Katowicach
Oddział Okulistyki Dorosłych Uniwersyteckiego Centrum Okulistyki i Onkologii, Samodzielny Publiczny Szpital Kliniczny Śląskiego Uniwersytetu Medycznego w Katowicach
Kierownik: prof. dr hab. n. med. Ewa Mrukwa-Kominek
Summary: Introduction: Stereopsis is two-eye depth perception which results in two slightly different images projected to the retinas of the eyes in Panum's fusional area. The purpose of this work was to evaluate the usefulness of Randot Stereo Test in researching the binocular vision.
Material and Methods: The research was conducted on one hundred adults and fifty-five children in school age. The ability of seeing with binocular vision was evaluated with Randot Stereo Test. Visual acuity test was conducted with Snellen chart from various distances; moreover, the evaluation of the position of the eyeball was made with cover-uncover test. The median of the age of participants was 22 ± 4 years in adults group and 8 ± 3 years in children group.
Results: The average stereopsis for the whole population and separately for adults and children was: 88, 85 and 91 arc seconds, respectively. Subgroups of adults and children were not significantly different in the context of sex and number of visible circles (p=0.61), instead they were different in the visual acuity (p=0.014). There is a significant and positive correlation between the average visual acuity for both eyes and the number of visible circles for tested population – in adults and children (R Spearman=0.2; p=0.01), and separately in the group of adults (R=0.2; p=0.02). Squint was diagnosed in every participant who did not have spatial vision.
Conclusions: Squint is an obstacle in binocular vision even with correct visual acuity from a short distance. Circles are the strongest distinguishable and accurately comparing test of the level of binocular vision. Correct visual acuity conditions the level of binocular vision.
Słowa kluczowe: stereopsja, ostrość wzroku, zez.
Keywords: stereopsis, visual acuity, squint.