Evaluating the diameter of eyedropper tips using a computer vision system

Authors :: Denise de Freitas
Priscila Cardoso Cristovam
Edicley Vander Machado
José Álvaro Pereira Gomes
Vagner Rogério dos Santos
Source :: Arquivos Brasileiros de Oftalmologia, Vol 82, Iss 1, Pp 51-55, Arquivos Brasileiros de Oftalmologia v.82 n.1 2019, Arquivos brasileiros de oftalmologia, Conselho Brasileiro de Oftalmologia (CBO), instacron:CBO
Publication Year :: 2018
Abstract: Purpose: This study aimed to determine the variation in diameters of outer and inner apertures of eyedropper tips using a computer vision system. Standardizing the size of eye drop nozzles is crucial to reduce the treatment cost of chronic eye diseases and to ensure a continued use of medication. An eyedropper volume of >20 µL (maximum storage of the conjunctival sac) causes medication wastage and increases treatment costs. Methods: We measured the diameters of the outer and inner apertures of eyedropper tips and evaluated variations in diameters using a computerized visual inspection system. Results: The computer visual inspection system identified anomalies in the apertures of eyedropper tips that resulted in diameter variations. Conclusions: The results of the present study show discrepancies in diameters of eyedropper tips, suggesting a variation in eyedropper size and medication wastage.

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