This is an inflammation of the eyelid. It is either =acute= or
=chronic= according to the cause. Acute blepharitis may be due to heat
or injury. Chronic blepharitis affects the glands of the lid causing a
perversion of the secretions. There is usually the formation of crusts
and scales. This condition is known as =blepharitis sicca=. In some
cases infection will form little pustules at the roots of the cilia.
There is soreness and aching. There may be photophobia. The nasal
region may be involved. Osseous lesions of the cervical region are
usually present. Refractive errors frequently exist in these cases.
Occupation or environment may expose to dust or wind sufficient to keep
up the irritation.
=Treatment.=—Change environment. See that there is thorough cleanliness
of the lid. Rub or pick away all scales. Use a bland ointment. Correct
any cervical or upper dorsal lesions.