The Dark Room

When the Corpse Plague ravaged Loria and threatened to spread across the Theussaun Protectorate (and potentially beyond), there was a rapid movement to identify, quarantine, and treat those who caught the disease. And when the clergy members and doctors working against the disease discovered that it gave the infected severe photophobia, which could reach such heights that light would cause bleeding from the eyes and blindness, they had to work rapidly to adapt. One of the primary ways they did this was the creation of "Dark Rooms."
In some cases, this was as simple as the blocking of windows and such with thick curtains or fabrics, as was seen in the main chamber of the Cathedral of the Silver Dawn. These were effective for the most part, but there were some who reached such depths of photophobia and photosensitivity that even deep shadows were not enough. For these patients, true Dark Rooms were employed. These involved isolating the patient within a small, confined space, and then using magic to create impenetrable, magical darkness. This would smother any and all forms of light, and ensure the patient was kept safe. At first the Dark Rooms used simple, nonmagical darkness, but when a patient inadvertently took their own life by lighting a candle, more desperate measures were employed.
The Dark Rooms were essentially straight jackets for those who needed them, keeping them confined and safe at the cost of their mental state. Several patients who were subjected to the Dark Rooms came out mentally frazzled, and some even came out mentally shattered, changed in their isolated struggle with the Corpse Plague. These were deemed as necessary evils in order to prevent the death of the patients and the potential spread of the disease, but there are some who worry that it was a brutal and overly cruel treatment for people already going through hell.