<prompt> What is the depth of the anterior chamber?2.5 to 3.5mm3.5mmto4.5mm4.5mm to 5.5mm5.5 mm to 6.5mm  <response>: Ans. is a i.e., 2.5 to 3.5mm o The normal depth of anterior chamber of eye is 3.5mm to 2.5mm; less than 2.5mm depth can be risk for angle closure glaucoma. 