Blue light tested as painkiller for broken ribs

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age greater than or equal to 18 years * Admitted to a single large academic level I trauma center (Presbyterian/Montefiore hospital) within the first 48 hours of traumatic injury * Greater than or equal to 1 acute rib fracture * Pain related to rib fracture(s), by one or more of the following criteria: 1. Pain \>/= 4/10 at rest, 2. Pain \>/= 4/10 with incentive spirometer (IS) use, and/or 3. Inspiratory volume \< 1000 cc * Anticipated length of stay greater than or equal to 48 hours * Alert, with capacity to provide informed consent Exclusion Criteria: * Mechanical ventilation\* or non-invasive positive pressure ventilation administered for respiratory insufficiency prior to the time of informed consent * Delirium (positive CAM screening) at the time of informed consent * Ocular trauma, which may interfere with the mechanism of action * Traumatic brain injury (TBI) or history of TBI or stroke, which may interfere with the mechanism of action * Splenectomy upon admission or history of splenectomy, which may interfere with the mechanism of action * History of significant ocular dysfunction\*\* (i.e., macular degeneration, glaucoma, cataracts), which may interfere with the mechanism of action * History of cataract surgery, due to the possibility of blue light filtering intraocular lens placement * History of bipolar disorder or schizophrenia, which could increase the risk of an adverse reaction to light exposure (i.e., acute mania) * History of dementia, which would compromise the reliability of pain intensity and delirium measures * Or other condition in which a patient cannot open eyes to receive light intervention or report a pain score \*\*Myopia, hyperopia, and/or astigmatism corrected for with contact lenses or spectacle corrective eyeglasses will NOT be a criterion for exclusion