Snellen Letter Eye Chart with Red Green Blue Bar Visual Acuity Test 6m / 20ft

20 foot Snellen single-sided acuity chart that ranges from 20/200 to 20/15. Has letters with Red, Green and Blue lines. Measures 22 x 11 Inches.

Snellen Letter Eye Chart with Red Green Blue Bar Visual Acuity Test 6m / 20ft : Industrial & Scientific

PV Numbers Chart: Red and Green Bar Visual Acuity Test , Assessments: Bernell Corporation

8 Line Patti Pics Color Test Visual Acuity Chart, P: Bernell Corporation

Snellen Wall Eye Chart with Big Letter at the top and progressively smaller at the bottom to 10/8. Visual Acuity Test at 10 Feet distance and

Snellen Visual Acuity Eye Chart for 10 Feet Chart 14 x 9 Inches

Visual acuity

Visual acuity

Preclinical Optometry Semester 1 Study Notes, OPTO90024 - Preclinical Optometry - UniMelb

PV Numbers Chart: Red and Green Bar Visual Acuity Test , Assessments: Bernell Corporation

What is the use of these green and red lines on Snellen/Eye chart? - Medical Sciences Stack Exchange