This assembly is for a retractable and versatile screen assembly for temporary or permanent installation for shading and glare reduction of ceiling light fixtures in T-bar grid ceilings. The screen assembly securely attaches to the T-bar of a light fixture in the ceiling using an clip integral to the screen cylinder casing and a receiving S-clip receiver at the opposing side of the ceiling fixture. Operable in a manual mode, the screen assembly can be deployed while sitting at a desk, or it is attachable in a more permanent position beneath a ceiling light fixture to control the glare emitted. The screen assembly includes a stationary screen cylinder, a screen, a spring roller, and a receiver S-clip.