In the research, glare from sunlight coming through special windows called Prism Daylight Redirecting Fenestrations (PDRF) was studied with young adults. They took pictures to measure glare, and people shared their feelings on how glary it was. They found that the chance of being bothered by glare (Daylight Glare Probability) was linked closely to how people actually felt about the glare. A new idea called glare tolerance time was suggested and turned out to match how people felt about glare. They also figured out different brightness levels that made glare seem not noticeable, a bit noticeable, or really annoying. The study helps understand how to reduce annoying glare from sunlight in places like classrooms.