WASHINGTON— A handheld screening device for keratoconus showed promise for corneal image capture and may offer clinicians an ergonomic tool to identify patients at risk for the condition, according to a presenter.“We know that a significant number of patients with keratoconus go undiagnosed and untreated. This is a major problem in this country and even more so around the world,” Michael B. Raizman, MD, said at the American Society of Cataract and Refractive Surgery meeting. “There are reasons for this: Optometrists and ophthalmologists often lack access to topography and tomography devices.