Snellen 30 x 45 cm 10 ft Red Green Bar Visual Acuity Test Chart

• Vision Test: This visual sample board with red and green bars allows you to check visual acuity from a distance of 3 meters (10 feet).
• Size The sample board is 9 x 14 inches in size for easy reading.
• Usage: Ideal for ophthalmologists, opticians, schools and households for regular vision inspection.
• DURABLE Made from extra strong, easily washable, non-reflective, frosted PVC sheet.
• Certified: The sample board complies with applicable standards and standards for vision tests.

The Snellen viewing chart is the well-known, classic table with large and small letters. The table consists of 11 lines of block letters, starting with a large single letter in the top row. The number of letters in each line increases from top to bottom. The size of the letters decreases progressively, so there are more letters on each subsequent line. Visual acuity test at 10 feet away and equivalent to 20 feet. Visual acuity range 20/100 to 20/16.