This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Glaucoma, Subject name: Ophthalmology
A child presents with lid lag and an enlarged cornea with a diameter of 13mm. Examination of the eye reveals double contoured opacities concentric to the limbus. Which of the following is the most likely diagnosis - 
Select and explain. 
A. Superficial keratitis, B. Deep keratitis, C. Thyroid Endocrinopathy, D. Congenital Glaucoma
D: Congenital Glaucoma
Answer: D: Congenital Glaucoma 
Explanation: In congenital glaucoma corneal signs include *corneal enlargement alongwith enlargement of globe - Buphthalmos especially when onset is before age 3 yrs *corneal oedema *Haab's striae -Tears and breaks in Descemt's membrane Ref:Comprehensive ophthalmology-AK Khurana 6th edition chapter-10 page no:226