What is tear film dysfunction?
Tear film dysfunction can be broken down into two basic classifications: the eye is unable to produce enough tears or the tear film is not properly balanced to keep the ocular surface lubricated and comfortable due to an increase in evaporation of the tear film.
What is Conjunctivochalasis?
Conjunctivochalasis is defined as a redundant, nonedematous conjunctiva that causes a wide variety of symptoms ranging from completely asymptomatic, to worsening of an unstable tear film, and when severe, a real mechanical disruption of tear flow.
What is the normal tear break up time?
Generally, >10 seconds is thought to be normal,(10, 11, 12) 5 to 10 seconds, marginal, and < 5 seconds is considered low. A short tear break-up time is a sign of a poor tear film and the longer it takes the more stable the tear film.
Does tear film regrow?
They will wash dirt away from the eye, but they will not coat the eye surface properly. In addition, because these emergency tears tend to arrive too late, the eye needs to regenerate and restore itself, and treatment is necessary.
Is conjunctivochalasis serious?
Is Conjunctivochalasis Dangerous? Conjunctivochalasis is a harmless but potentially debilitating type of eye disorder. If left untreated, conjunctivochalasis can lead to corneal ulcers and pain in the area around the eyes which may worsen over time.
What is the treatment for conjunctivochalasis?
Conjunctivochalasis surgery involves removing the conjunctival folds and in doing so, restoring the tear film so that it is smooth and can better lubricate the eyes. This should help to eliminate dry eye symptoms and make the eyes in general feel much more comfortable for the patient.
What causes the break up of the tear film?
In this case, the abnormal break up of the tear film is a direct measure of the functional ability of the mucus layer and reflects the impaired lipid masking and lipid removal activities of this layer. Alterations in the lipid composition of the precorneal tear film have been associated with chronic blepharitis.
What causes movement on an EKG rhythm strip?
Interpreting EKG Rhythm Strips Artifact EKG waveforms from sources outside the heart Interference is seen on the monitor or EKG strip 4 causes Patient movement (most common) Loose or defective electrodes (fuzzy baseline) Improper grounding (60 cycle interference) Faulty EKG apparatus
What causes decrease in aqueous component of tear film?
Patients who present with a decrease in the aqueous component of the tear film comprise the majority of patients with dry eye. The most commonly encountered condition that occurs as a result of aqueous deficiency is keratoconjunctivitis sicca (KCS).
What causes nonuniform distribution of tear film?
Lid-globe incongruity such as occurs with ectropion or lid inflammation may cause a nonuniform distribution and improper surfacing of the pre-ocular tear film. Moreover, poor congruity of lids with ocular surface may lead to punctual mal-apposition with consequent decreased removal of contaminated tear film.