Certified Ophthalmic Assistant Practice Exam

Rose Bengal is a red dye used in ophthalmic practice to stain dead or degenerated epithelial cells in the eye. It is commonly used in diagnostic procedures such as evaluating corneal abrasions or herpetic eye infections. The staining pattern helps ophthalmic professionals assess the extent of damage or disease in the eye. Therefore, the correct answer is option C - Red dye. Options A, B, and D are incorrect as Rose Bengal is specifically known for its red color dyeing properties when used in ophthalmic applications.