Knowledge of normative periods of development of the child in the systematic observation of the formation of the psyche will allow the timely detection of the pathology of sensory systems, including visual.
One of the first signals of disturbed vision in a two-month-old child may be the lack of fixation on the face of an adult or a toy, as well as the absence of tracking the visual stimulus, the reaction to changes in the environment.
Approximately up to six months in a child with a vision defect there are some manifestations of autism, it does not respond to stretching hands and toys to him, and with the insertion into his hand of the objects there is a violation of motor function, as well as the absence of fine motor motility of the hand.
When there is a tentative reflex in the child's vision of another subject. He almost does not show emotions. The child is afraid of space, does not move on his own, even if it is constantly in it.
Diagnosis of violations
If the child has any disturbances in the sensory sphere, regardless of whether it is vision or hearing, for the effective diagnosis, objective methods of investigation are necessary.
Electroencephalography, electronic tachystoscope, projection perimeter, and others can be used to test one or another sensor system.
For psychological research it is necessary to adapt the test material to the specifics of the weakened function of vision. The proposed tired material should be of fairly large size, contrasting colors, large fonts, clear and clear drawings.
For more effective training, blind children should be diagnosed in at least three main areas:
- Clinical Assistance and Clinical Assistance;
- Self-examination, self-report, self-monitoring and self-control;
- Examination of actual, valid view in the conditions of school education.
The ophthalmologist examines the visual acuity, the functioning of the central and peripheral vision. The doctor gives testimony to the use of lenses and glasses, the conclusion regarding physical activity, and explains the features of psychological effects.
The child's personal report provides teachers with information on what knowledge he plans to gain from his or her vision. The stories of children can inform teachers more in detail about the specifics of his vision.
In addition, it is very important to compare the subjective assessments of the children of his or her vision with those indicators that provide objective methods for studying the visual function, and from the actual state of view that the child can use.