This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Investigation in ophthalmology and miscellaneous topics, Subject name: Ophthalmology
Blue sclera is associated with: 
Select and explain. 
A. Marfan's syndrome, B. Osteogenesis imperfecta, C. Buphthalmos, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Blue sclera is asymptomatic condition d/t thinning of sclera, associted with : Osteogenesis imperfecta. Congenital Glaucoma Marfan's syndrome Ehlers-Danlos syndrome, Pseudoxanthoma elasticum, Buphthalmos High myopia Healed scleritis. Neveus of ota Extra edge: Thickening of sclera is seen in posterior scleritis, Nanophthalmus etc