The U.S. Army is conducting market research to identify potential sources capable of providing 18 pupilometers for Brooke Army Medical Center at JBSA Fort Sam Houston, Texas. This is a sources sought notice only, not a request for quotes or a commitment to issue a solicitation. The purpose is to determine if there are enough qualified contractors, including small businesses, to meet the requirement. Interested parties must submit capability information, confirm they can provide the equipment meeting the salient characteristics, and should not submit pricing. Responses are for planning purposes and will not be returned.