WE WOULD LIKE TO CONGRATULATE THE TEAM OF KELLY and associates on a brilliant study, and we agree with the idea that efforts need to be focused on teaching direct ophthalmoscopy. This valuable procedure could save lives (in the case of papilledema) and/or the patient's vision (in the case of diabetic retinopathy or glaucoma). ' We also noticed that most physicians do not have the appropriate training during medical school and/or do not retain that knowledge.Models that simulate real situations are of value in teaching, as well as in diagnostic and even therapeutic maneuvers. The efficacy of these models depends on the skill transfer from the bench to real life and on retention over months and years. A low-cost model that can stimulate students to learn the physical principles of the direct ophthalmoscope while they participate in its construction was developed by the Medhacker team of the Ocular Bioengineering Laboratory (Ophthalmology Department, Paulista School of Medicine-UNIFESP [Sao Paulo, Brazil]).
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