Sclerotic scatter.

Sclerotic scatter involves the scattering of incident light by the limbal sclera followed by entry of part of the scattered light into the cornea, where some of the light travels through total internal reflection to the other side, where it scatters a second time in the limbal sclera. It is then visible in the form of a limbal scleral arc of light. Sclerotic scatter has been used for decades to spot and delineate corneal opacities, which disrupt and scatter the light travelling through total internal reflection.

[Are the ophthalmology items of the French health record realistic?].

Purpose: Since 2006, French general practitioners have had to carry out an ophthalmological screening for children, using a methodology contained within the child's health record (carnet de santé). The purpose of this screening is to allow an early diagnosis of sight-threatening as well as potentially life-threatening conditions (e.g.