or uneven outdoor areas

This stethoscope will only allow you to hear your patient’s body and not be distracted by outside noises

This is a great resource for working with special needs students

This wipe is convenient

accurate and repeatable tests

10 ft: Texas Wide Spaced Sloan - CK (7 Line) Chart SC or uneven outdoor areas(9" x 14") May be wall mounted or used with illuminated cabinets (66003, 66004, 66016, 66090). These new charts are recommended by Prevent Blindness Texas and The Texas Health Department. 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.