Confrontation test
Aim: rough method to measure gross defects in the visual field by comparing visual fields of the patient with that of the examiner.
Steps:
1)-While sitting 1 meter in front of the patient ask him to cover his right eye with his hand
2)-Cover your left eye
3)-Catch a white object in your right hand then move it from ouside inwards(in 4 directions: NasalàUpwardàdownward àtemporal)
4)-Ask the patient to tell you if he no longer see the objectàSo there is a field defect in this direction
5)-Use other coloured objects(Red,Green,Blue)
Oral questions:
*Normal limits of the visual field
*Accurate methods of measurement of the visual field
*Types of visual field defects & their importance.
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