Ophthalmology All of the following are true for colloid bodies (drusens) except: A Are hyaline excrescences of Bruch's membrane B Are secreted by pigment epithelial cells C Are usually associated with marked loss of vision D Are a percursor of disciform maci degeneration in some eyes 💡 Explanation All of the following are true for colloid bodies (drusens) except: ✓ Correct Answer: C. Are usually associated with marked loss of vision