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What does “good vision” mean?
Vision is a complex sense with many parameters. To describe someone’s vision as good or normal, having a high resolution (visual acuity) is not enough....
Checking the visual acuity
Visual acuity is measured quantitatively by checking the smallest object that the examinee can distinguish at a given distance. For children who know the...
Checking the optical fields
The measurement of visual acuity regards the central vision, i.e. the ability to distinguish objects which we are looking at. However, the peripheral vision...
Checking color perception
In general, disturbances in color perception do not involve girls. Though, over 8-10% of boys have some form of chromatodisfunction, usually regarding...