Slit Lamp Microscopes SM-10N are high-performance Greenough Microscopes. Its convergent binocular tubes ensure easy fusion and stress-free observation. An advanced multi-coating is applied to all lenses used in the microscope. Because of the high optical performance, bright images free from flare and ghost can be obtained, improving the quality of medical examinations and treatment. In Helicoid Mechanism, as the diopter adjustment rings do not rotate with the eye caps, the selected diopters will not be accidentally changed during use. Within the SM-10N, the slit length is adjusted in preset steps. The SM-10N is not equipped with the tilting mechanism.