👉 The Chad fluid, also known as chalazae fluid, is a clear, viscous substance that forms within the eyelid's meibomian glands, which are responsible for producing the oil that keeps the eye's surface moist and prevents tear evaporation. When these glands become blocked or inflamed, they can't produce or expel the necessary oil, leading to the accumulation of lipids and mucus within the glands. This buildup results in the formation of a firm, painless lump or cyst called a chalazae. Unlike a more common condition, blepharitis, which involves inflammation of the eyelid margins, a chalazae is not an infection but rather a non-inflammatory blockage that can cause discomfort and affect vision if left untreated.
