Accommodation Solutions Online

Eliminate Flicker

Eliminating flicker involves removing flashing lights or sharp transitions in video, particularly those in the 15-20Hz range. Eliminating flicker in the classroom is necessary so students who experience physical responses to flicker (e.g. seizures, migraine headaches) can fully participate in academic settings.

Eliminating flicker might involve using LCD computer screens in class, screening class videos and graphics for flicker occurrence, or requesting that flickering fluorescent lights be replaced. Instructors can collaborate with the student and service provider to eliminate flicker in their classrooms. A flicker-free screen is one, such as an LCD display, that does not have a visible refresh cycle, particularly in the 15-20Hz range.



Students have a responsibility to communicate with the services for students with disabilities office and faculty if they need flicker-free learning environments, and they should alert the services office if there are any problems with flicker in their classes.


Faculty need to provide flicker-free class environments in a manner that protects the student's privacy and confidentiality.


The services for students with disabilities office is responsible for notifying the faculty of the student's right to learn in a flicker-free environment, provide faculty with the resources to eliminate flicker, and facilitate communication between students and faculty.


Related Functional Characteristics

Flicker or Pattern Sensitivity : Avoid visual diagrams and multimedia presentations that include flicker, flashes, sharp repetitive movement or elaborate patterns.

The Building Accepting Campus Communities (BACC) project was funded by the US Department of Education Office of Secondary Education grant #P333A080070-09. The University of Nebraska does not discriminate based on gender, age, disability, race, color, religion, marital status, veteran's status, national or ethnic origin, or sexual orientation.