Protein Diet in Bariatric Patients Could Modify Tear Film.

Bariatric surgery patients have deficiencies of macro- and micronutrients that may be related to ophthalmic complications, for example consequences on tear film layers (lipid, aqueous, and mucosa). In this work, we associated protein diet and tear film layers in bariatric patients of a Mexican hospital. We measured characteristics of tear film by the Schirmer and tear break up time (TBUT) tests under three different protein percentage diets: 10, 15, and 25%.

Electrically insulated sensing of respiratory rate and heartbeat using optical fibers.

Respiratory and heart rates are among the most important physiological parameters used to monitor patients' health. It is important to design devices that can measure these parameters without risking or altering the subject's health. In this context, a novel sensing method to monitor simultaneously the heartbeat and respiratory rate signals of patients within an electrically safety environment was developed and tested.