prescription bifocal colored contact lenses In addition to improving the health of the eyes, contact lens is now also used as accessories to beautify the appearance. However, you should know that the color pigments are the colored contact lenses could actually be harmful to the eyes.
Investigative research on colored contact lenses by Dr Pauline Cho PhD from the Polytechnic University of Hong Kong showed that the content of pigment in colored contact lenses can be simply detached and touching the cornea directly. Therefore, the accuracy required consumers to pay attention to contact lens product prior to purchase in order to maintain eye health.
Cheni Lee OD as a contact lens expert in Southeast Asia revealed that regardless of color pigments without us knowing it can cause allergies, redness, irritation, until complications in the eye. This happens because the location of the color pigment was found to be on the surface of the contact lens.
"Pigment on several brands of contact lenses to be located on the surface, either the inner surface or outer surface," said Cheni Lee. Color pigment which is located on the inner surface will rub against the cornea layer directly, while the pigment located in the outer surface of the lens will be in direct contact with the inner eyelid.
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