engleski

Measuring the influence of telescopic Galileo system on visual acuity of paediatric dentists in a simulated clinical environment

Aim: The purpose of the study was to compare near visual acuity of dentists without optical aids (VSC) and with use of the Galilean telescope system (VGA2) with magnification of x 2.5 , distance of 350 mm in simulated clinical conditions. Methods: The study included 50 dentists (visual acuity 1.0 without correction). Miniaturized Snellen visual test was placed in the molar cavity of dental phantom head in simulated clinical conditions. Near visual acuity for the vicinity was examined: 1) without correction at a distance of 300-400 mm (VSC) ; 2) with Galilean loupes with magnification of x2.5, focal length 350mm. Results: The distribution of near visual acuity recorded using VSC and VGA2, 5 systems were compared by the Wilcoxon Signed Rank test. Results by Wilcoxon Signed Rank test indicated a statistically significant difference in the distribution of recorded visual acuity between VSC and VGA2 optical system (W = - 403.5 ; p <0.001). Conclusion: using VGA2, 5 system higher values of near visual acuity were recorded compared to near visual acuity without magnifying aids (VSC).

visual acuity ; miniturized Snellen optotype ; magnification systems ; Galilean optical systems ; dental loupes

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