This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy, Development and clinical examination, Subject name: Ophthalmology
Slit-lamp microscopy is indicated in - 
Select and explain. 
A. Corneal Opacities, B. Disease of anterior chamber, C. Lens opacities, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Structures which can be examined with a slit-lamp are- Lid margin Conjunctiva Cornea Sclera Anterior chamber Iris and pupil Lens Anterior pa of vitreous Reference: A K KHURANA COMPREHENSIVE OPHTHALMOLOGY, Edition 4, page-547