Effects of CIC
In most people, the infection spreading from the nasal/sinus areas
is just a source of irritation. However, in some patients,
this spread of infection can lead to more serious infective conditions.
Probably the most serious & rarest of all is meningitis. But
many other more common infective conditions can occur, especially
involving the tissues surrounding the eyes. Such examples are eyelid
infections, blocked tear ducts, orbital
(of the eye socket) infections, corneal ulcers etc.
CIC can also contribute to some external eye problems in more subtle
ways. It can interfere with proper healing of the outer layer of
the corneal tissue (epithelium) in cases of recurrent corneal
erosion syndrome. (See Part I(D).) CIC can also pre-dispose
to mild bleeding under the conjunctiva (sub-conjunctival haemorrhage).
Twitching of the eyelids (tic) may also be partly due to
the irritative effects of CIC.