LCD Vision Chart - Ophthalmic Equipment - Mercoframes Optical Corp In the context of optometry, an episcope is a pivotal optical device. It is employed to project flat, opaque images and even three-dimensional objects onto a screen.
LCD Vision Chart
In the context of optometry, an episcope is a pivotal optical device. It is employed to project flat, opaque images and even three-dimensional objects onto a screen. The LCD Vision Chart, in this context, serves as a precise tool to evaluate visual acuity. It presents the test via an LCD display, while an optometrist interprets the patient's subjective visual results in conjunction with the projected images from the episcope. This comprehensive approach aids in the diagnostic process, ensuring accurate data for the prescription of corrective eyewear. The episcope's role in projecting images enhances the test's effectiveness, providing a more holistic view of the patient's visual capabilities.
Projectors, specifically graphics projectors, share an optical likeness with slide projectors. They comprise a lighting system, which includes a filament lamp and a condenser for illuminating the object. Optotypes, instruments used to assess visual acuity and color vision, are presented via printed tables with a variety of letters, numbers, and figures in predetermined sizes. These are cataloged in tenths of vision.
