This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
Horner's syndrome, all are true except- 
Select and explain. 
A. Unilateral loss of sweating, B. Enophthalmos, C. Mydriasis, D. Ptosis
C: Mydriasis
Answer: C: Mydriasis 
Explanation: MIOSIS occurs not mydriasis . Unilateral loss of sweating,Ptosis,Enophthalmos Heterochromia iridis , loss of ciliospinal reflex. Ref : ak khurana 6th edition