Visual Functions Test
Visual functions are the ability of the various components of the eye to work together for us to perceive things around us. They comprehend clear single vision, colour, light contrast, movement, shape, depth, etc.
Visual functions tests include:
- Vision / visual acuity
- Contrast sensitivity
- Refraction (sight test) for short-sightedness, long-sightedness, astigmatism or presbyopia (aging sight)
- Binocular vision: muscle motility, focusing ability, squint, amblyopia (lazy eye) and stereopsis (depth perception)
- Pupil reflex
- Visual field
- Colour blindness
