This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Ophthalmology
Asteroid Hyalosis bodies are composed of 
Select and explain. 
A. Iron, B. Calcium and phosphates, C. Cadmium and chloride, D. None
B: Calcium and phosphates
Answer: B: Calcium and phosphates 
Explanation: Answer- B. Calcium and phosphatesAsteroid hyalosis is a degenerative condition of the eye involving small white opacities in the vitreous humor.The asteroid bodies are made up of hydroxyapatite, which in turn consists of calcium and phosphates.