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| eye affected by allergic conjunctivitis |
Some preservatives used
in eye drops by some manufacturers have side effects to the eye, most of the
effect ranges from eye irritation that will result to redness, itching ,
burning or stinging sensation and
dryness.
Preservatives in eye
drops when used for long can have devastating effects on the tear fim, it
roughen the surface of your cornea and the conjunctiva,
Manufacturers uses
these preservatives to prevent these eye drops from decay or undergoing
chemical changes but most of the time they come with their side effect, this is
why doctor always recommend preservative-free eye drops to patient.
Below are some
preservatives used in eye droops and their side effects.
·
BAK: benzakolium chlorides, This kind of
preservatives has effects on the patients cornea and can have a deleterious
effects on the eye. This is used in anti-glaucoma and it also causes cytotoxic effects
on the eye.
·
Polyquad : a
good alternative to BAK, made to replace
BAK in contact lens solution , it kill pathogens and not acular (eye) cells,
therefore it does not cause pinkeye.
·
Sofzia : another
good alternative to BAK,
They eye tissues and cells
react to this preservatives by causing other health issues like corneal surface
impairmen, ocular discomfort, epithelial apoptosis, subconjunctival fibrosis, tear
film instability and conjunctival inflammation. Other side effects of eye drops
preservatives apart from the one we have listed are disruption of the corneal
epithelium barrier, conjunctival squamous metaplasia, ,loss of goblet cells and
damage to deeper ocular tissues.
The best Alternative to avoid allergic
reaction to preservatives in eye drops is to look for single dose packing, there
are many companies that are selling eye drops in simple unit doses, meaning once
they are opened and used they are thrown away, therefore there is no need of
preservatives in them. They are
therefore preservative free.
They eye tissues and cells react to this
preservatives by causing other health issues like corneal surface impairmen, ocular
discomfort, epithelial apoptosis, subconjunctival fibrosis, tear film
instability and conjunctival inflammation. Other side effects of eye drops
preservatives apart from the one we have listed are disruption of the corneal
epithelium barrier, conjunctival squamous metaplasia, , loss of goblet cells
and damage to deeper ocular tissues.
