WHO in 1972 proposed a universal definition of blindness – ‘a visual acuity of less than 3/60 (snellen) or its equivalent’
In case snellen’s chart / other equipments are not available, blindness can be tested by – ‘visiual acuity less than counting fingers in day light at a distance of 3 meters’ – it is considered equivalent to 3/60 with snellen’s chart
If the visual field is less than 10 degrees, irrespective of the level of visual acuity, it is considered as blindness

Laryngomalacia literally means ‘abnormal softening of the larynx’
It is a congenital condition in the supraglottic part of the larynx is abnormally flaccid
It is the most common congenital lesion of the larynx and is the most common cause of congenital stridor
During inspiration, the epiglottis folds upon itself and is sucked into the larynx
This causes stridor and sometimes cyanosis
The severity is more when the child is crying and is relieved by placing the child in prone position
It appears at or soon after birth and usually disappears by 2 years of age
Diagnosis is …