Conducts a full range of ophthalmic tests and measurements in accordance with established protocols and provider instructions, including visual acuity and field testing, ocular motility, pupillary response, interpupillary distance, lens neutralization, tonometry, color and depth perception, pachymetry, autorefraction, Amsler grid testing, and other assigned optical tests. Required as applicable for the purposes of specific eligibility and appointment claim(s), and position requirements: Indian Preference Applicants: If claiming Indian preference, applicants must provide a completed copy of the Form BIA-4432, "Verification of Indian Preference for Employment in the BIA and IHS Only."