You probably won’t notice any discoloration in circle Lenses
or colored contact lenses if you have been replacing them as per your
prescription. Please bear in mind that branded
circle lenses or Korean circle lenses are made from “Sandwich Printing
Technology” which keep the pigmentation of the lens saved between two layers.
Circle lenses or colored contact lenses made in China or those counterfeit
lenses lack in this regard & thus may fade even before the first wear.
Colored
contact lenses do fade in color overtime because everything weathers.
However if you practice a good replacement schedule; you probably are not
giving your colored contact lenses enough time to fade.
Following factors
are involved in colored contact lens fading
The change in molecular structure of colored contact lenses
that occurs due to over wearing causes discoloration. Colored contact lenses
also become contaminated. Refer to the chart below for contamination signs on
colored contact lenses.
Staining
|
Causes
|
Yellowish brown
|
Over-wearing
|
Brown hue
|
Rinsed with tap water (containing high iron content)
|
Yellow & Blue
|
Cosmetics buildup
|
Pink
|
Medicines ( VB12, improper eye drops, antibiotics)
|
Reddish-Brown
|
Contact lenses of smoker
|
White & bright grey
|
Proteins, lipids, fungi, medications
|
The inappropriate
lens care products such as hydrogen peroxide which acts as a bleach may
further accelerate the fading. Neglecting precautions when wearing circle
lenses and applying makeup such as improper use of hair spray, straightening
irons, curlers and dyes boost-up premature fading in
colored contact lenses.
Adherence to the prescribed
replacement schedule & disinfecting
them regularly save you bucks and above all prevent you from frightening
eye sores & abrasions!
Reference:
Contact Lens Complications- Etiology, Pathogenesis,
Prevention, Therapy by Hans- Walter Roth
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