At a minimum, the following are noted: How To Do Lateral Canthotomy VIDEO Visual acuity Pupil shape and pupillary responses Extraocular movements Anterior chamber depth or hemorrhage Presence of red reflex Assessing Visual Acuity In descending order of acuity, vision is assessed as Reading a Snellen chart Counting fingers while noting distance (eg, counting fingers at about 1 inch [3 cm]) Detecting hand motion Perceiving light Lacking light perception An analgesic or, after obtaining any surgical consent, an anxiolytic may be given to facilitate examination.