مخطط عين بحروف سلون للرؤية القريبة مع سلك بطول 16 بوصة
مميزات خاصة
Standardized adult Sloan Letter near vision card.
16 inch, 40 cm testing distance.
With 16 Inch Cord.
وصف
Standardized adult Sloan Letter near vision card with proportionally spaced (logMAR) lines in ETDRS format; line sizes range from 20/400 to 20/10 (6/120 to 6/3) equivalent. Attached 16-inch (40 cm) measuring cord ensures proper screening distance. Printed on two sides. 7" x 9" (17.8 cm x 22.9 cm).
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