The Cataracts Model is a medical teaching aid designed to demonstrate the development and effects of cataracts in the human eye. The model visually represents the cloudy lens condition that occurs during cataract formation, helping students clearly understand this common eye disease. It is widely used in medical colleges, universities, hospitals, and biology laboratories for ophthalmology training and anatomical study. Supplied with an educational reference card, the model provides additional learning information for students and instructors. This teaching model helps improve practical understanding of eye disorders and supports effective demonstration in classrooms and medical training environments.