Designing a 3D Printed Personal Protective Equipment for a Binocular Indirect Ophthalmoscopy

This research addresses the need for a protective device during binocular indirect ophthalmoscopy (BIO) exams, where traditional face shields cannot be used due to the presence of the instrument and the need for continuous manual interaction. The study aimed to design a device that is easy to fabricate using a 3D printer, usable with different models of ophthalmoscopes, and easy to apply and use. Three possible designs were produced, and the most promising one was further developed into a prototypal level. The article describes the design phase, testing of the prototype, and possible applications of design for additive principles to improve manufacturability. The study is part of the SafEye project, financed by the Tuscany Region with the Covid-19 Tuscany Research Grant, which fostered actions towards the prevention of the spread of the pandemic at all levels. The resulting device is a general-purpose personal protective equipment (PPE) for BIO that can be easily 3D printed and used worldwide, even in underdeveloped countries.