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
Normal IOP in population is 
Select and explain. 
A. 6-10 mm Hg, B. 1-6 mm Hg, C. 21-25 mm Hg, D. 14-19 mm Hg
D: 14-19 mm Hg
Answer: D: 14-19 mm Hg 
Explanation: Normal IOP : 14-19 mm Hg Variables in Intraocular pressure (Those factors that can cause change in the intraocular pressure throughout day) More in morning than in evening in normal adults (Diurnal Variation) Hea rate Blood pressure Respiration