The eye level shot is one of a handful of basic camera angles used repeatedly in films. ... Considered to be a “neutral” camera angle, its function is not to distort or over-dramatize a scene but rather to give the viewer a very familiar perspective.
Why would you use an eye level shot?
Why use an eye-level shot? As a director or DP, you may want to use an eye-level shot to bring the audience into the story. You can do this by creating an eye-level POV shot, or an eye-level close-up. This can help humanize the character at the center of the story or be used as a reveal for an object within the frame.
Should you always shoot at eye level?
One of the most effective ways to do that is to try and get down and shoot at eye-level with the subject. Please note that eye-level need not necessarily mean ground-level always. You could have a subject on a tree, rock, etc., so it's not always essential to be at the ground-level but being at eye-level really helps.