Given that failure to diagnose and adequately address OSD prior to cataract and refractive surgery could potentially result in either postoperative disappointing vision, new or worsening OSD symptoms, or infection, new point-of-care diagnostic tools such as tear osmolarity and matrix metallopeptidase 9 (MMP-9) tests have been suggested to be integrated into a routine preoperative workflow [5]. Here, MMP9 is linked to infection.