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Super Pinhole Macula charts are used to determine potential acuity before cataract surgery.
This sloan Letters chart is for the Super Pinhole Macula Cabinet and has characters in a scrambled order for situations where repetitive testing are involved.
Proportionally spaced lines; line sizes range from 20/100 to 20/20 (6/30 to 6/6) equivalent. Chart measures 10″ x 10″ (25.4cm x 25.4cm)
Testing distance of 1.5m (5ft) for all Super Pinhole charts
13 line chart with 2 groups for repetitive testing 9″ x 14″ (23 x 35.5 cm). For vision testing at 3m (10 ft.). Compare to “Snellen” Charts
3 meters chart. 15-Line LEA Symbols distance wall chart on one side and solid black as a base for color testing on the other. Includes response key, training cards, and instructions. 40.6 cm x 40.6 cm. Folds to 40.6 cm … Continued
9″ x 14″ (23 x 35.5 cm). For vision testing at 3m (10 ft.)
3 meters chart 15-Line LEA Symbols distance wall chart on one side and solid black as a base for color testing on the other. Includes response key, training cards, and instructions. 43 cm x 53.4 cm. Folds to 43 cm … Continued