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
Lamina Cribrosa is absent in 
Select and explain. 
A. Macular hole, B. Coloboma of Optic disc, C. Optic atrophy, D. Morning glory syndrome
D: Morning glory syndrome
Answer: D: Morning glory syndrome 
Explanation: Morning glory syndrome is a birth defect of optic nerve that resembles flower known as morning glory.