Effect of TrueTear Corneal Surface Imaging

Inclusion Criteria: * Scheduled to undergo routine imaging for cataract surgery, refractive lens exchange or laser refractive surgery Exclusion Criteria: * A cardiac pacemaker, implanted or wearable defibrillator, or other implanted metallic or electronic device (e.g. cochlear implant) in the head or neck * Chronic or frequent nosebleeds, a bleeding disorder (e.g. hemophilia), or another condition that can lead to increased bleeding * A known hypersensitivity (allergy) to the hydrogel material that comes into contact with the inside of the nose during use of the TrueTearTM device * Pregnancy * Presence of any ocular disease or condition which in the investigator's opinion would confound the study results