sneezing and blowing your nose pamphlet

A MassVat design helps to isolate the lines and detect Amblyopia

comfortable skin

This poster gives a visual of the male reproductive system and what it does inside the male body

ease of holding and operation

10 ft: SLOAN (13 Line) Chart Discontinued sneezing and blowing your nose(9" x 14") Sloan optotype chart for vision testing at 10 feet. Letter size tests a range from 10 80 to 10 5. May be wall mounted or used with illuminated cabinets (66003, 66004, 66016, 66090). The Sloan optotypes were developed on the same basis as Snellen optotypes. Sloan optotypes do not use serifs however, but do use a logarithmic geometric progression.