What Does Contact Lens Common Problem Have？(6)
A：There are a lot of protein components in the tears in our eyes, and eye glands also secrete a lot of lipids. In addition, contact lenses exposed to the air, many foreign bodies, dust, microorganisms, these are the source of precipitation, and the lens material is hydrophilic, adsorption precipitation is inevitable.
Generally speaking, after wearing the lens for one minute, 50% of the lens area is covered by precipitate, and 80% of the lens area is covered by precipitate after eight hours.
Q: Where is the harm of lens sediment?
A: It can cause irritant reaction and decrease the comfort of the wearer. The accumulation of sediment will also reduce oxygen permeability and cause hypoxia. Sediment also blocks light penetration, causing blurred vision; The sediment can also absorb microorganisms and cause secondary infections; More serious is the cause of eyelid conjunctivitis immune response, resulting in giant papillary conjunctivitis.
Q: What about broken lenses?
A: Soft lenses are more delicate, long-term repeated rubbing, picking and wearing, pinching and pressing, the impact of environmental rays, the aging of the material is easy to produce edge defects, central cracks, small holes and other damage, serious corneal scratches, oxygen permeability disorder and visual deformation, affecting the normal wearing.
Q: Can the eye match to wear invisible glasses especially small?
A: Yes, the size difference of each person's eyeball is not quite obvious, the main difference is the size of eyelid cleft, the so-called small eyes wearing contact lenses is not affected.
Q: Can invisible glasses nurse fluid be lubricated directly?
First, contact lens solution and eye lotion are two completely different contact lens products.
In terms of function, the nursing solution is mainly used for cleaning and lubricating contact lenses, while the eye lotion is mainly used for relieving visual fatigue, lubricating lenses in contact lenses, relieving dry eye symptoms caused by wearing, etc. It is a sterile, isotonic and buffer solution.
Different solutions have slightly different ingredients, but the main ingredients are similar. First, clean the disinfection ingredients, which can safely and effectively sterilize the lens to remove protein; The second is wetting agent, the composition and tears close, can form a layer of wet protective film on the eyeball, improve the comfort of wearing, maintain lasting lubrication.
Third, physiological electrolyte solution and taurine, the component can make contact lens care solution and human tears of the physiological environment better match, to ensure the health and comfort of wearing. The above are the main components of most nursing fluids. Different nursing fluids will emphasize or add different ingredients according to their functions. Eye lotion contains special wetting ingredients to lubricate the lenses.
Of course, some brands of nursing fluid in emergency, can temporarily for the use of embellish eye fluid. Although nursing liquid contains bactericidal components, but long-term use as eye drops will increase the resistance of some bacteria. Therefore, it is best not to use the care solution as lubricant, it is recommended to use professional contact lens lubricant. Does that make sense? Use it occasionally in emergencies, but it is not recommended to use the solution directly as contact lens lubricant