Vision Testing Device with Interchangeable Lens Assembly Modules

Abstract

Head-mounted vision test devices include a host module with a processing unit and a display, and a lens assembly module detachably connectable to the host module. The host module automatically detects a type of the lens assembly module that is connected thereto. The lens assembly module includes an outer frame, at least one lens assembly comprising at least one lens adapted for testing at least one of visual field or visual acuity, and, preferably, at least one light block. Based on the detected type of the lens assembly module, the host module is configured to allow only one or more vision tests supported by the attached lens assembly module. The detachable lens assembly modules enable different vision tests to be performed using a single head-mounted device while preventing incompatible test selection and improving testing reliability.

Dependencies are inferred from the claim text.