Evaluation of the visual function in obstructive sleep apnea syndrome patients and normal-tension glaucoma by means of the multifocal visual evoked potentials.

摘要

I would like to congratulate Gutierrez-Diaz et al. for their work about the visual function on patients with sleep apnea and normal-tension glaucoma [1], and would like to make a few remarks. I would like to have more details on the selection of patients. It is written "the patients were recruited from a total of 118 patients referred to the glaucoma department". Could we know how many patients had a glaucoma, and what was the diagnosis for the others ? Had all patients a glaucoma ?