This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ocular trauma , Subject name: Ophthalmology
Secondary glaucoma associated with angle recession is seen in - 
Select and explain. 
A. Concussion injury, B. Radiation injury, C. Penetrating injury, D. Chemical injury
A: Concussion injury
Answer: A: Concussion injury 
Explanation: Angle recession refers to the tear between longitudinal and circular muscle fibres of the ciliary body. It is characterized by deepening of the anterior chamber and widening of the ciliary body band on gonioscopy. Later on it is complicated by glaucoma. Ref:AK Khurana 4thE pg 405