This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vitreous Humour, Uveal Disorders, Subject name: Ophthalmology
A young woman complains of a red eye and associated pain above the eye. The patient's mother has chronic open-angle glaucoma and the patient wants to know whether she has the same thing. The patient describes several bouts of having a red, painful, eye that is relieved by sleeping.Examination reveals irregular pupil. This would be more consistent with which of the following? 
Select and explain. 
A. Iridocyclitis, B. Conjunctivitis, C. Keratitis sicca, D. Chronic open-angle glaucoma
A: Iridocyclitis
Answer: A: Iridocyclitis 
Explanation: Iridocyclitis - Iridocyclitis can have an irregular pupil, pain and redness.- Anterior surface problems like conjunctivitis and keratitis sicca (dry eyes) should not result in an irregular pupil.- Chronic open-angle glaucoma does not present with a red, inflamed eye. It does not give an irregular pupil.