What should I pay attention to when traveling with contact lenses? (For example, eating a barbecue will melt into blindness in case of fire. )

Blurred vision: if it is far from clear, it may be insufficient luminosity; I can't see clearly. Maybe luminosity.

Too deep; If ghosts appear, astigmatism may not be completely corrected; If you can't see clearly after blinking, the mirror

There is a jelly block on the surface of the lens, so it is necessary to clean or replace the lens, or it may be that the center of the lens is not well positioned.

Replaceable lens with suitable substrate arc; If you can't see clearly for a long time and corneal edema occurs,

The high oxygen permeability lens can be replaced, or it may be that the lens is old and needs to be replaced with a new lens; If things get worse,

Degenerated blurred vision, mostly caused by giant papillary conjunctivitis (GPC), should stop wearing. If you can't stop using it after treatment.

Clean the lenses thoroughly every week or replace them as soon as possible.

2. Myopia becomes worse in a short time after wearing glasses.

Perhaps the bottom arc of the lens is too small; The wearer happens to encounter an increase in exams or close work, and encounters this kind of

The situation should be mydriasis optometry.

3. The eyes are red after wearing it.

(1) Acute hyperemia: The reasons may be bacterial infection, wearing too tightly, wearing it overnight, and lens contamination.

Abrasion and ulcer of corneal epithelium caused by debris between lens and cornea. This disease is often monocular, if so.

Moderate to severe congestion with pain, fear of light, tears, blurred vision and corneal leukoplakia.

Point, there is often keratitis. At this time, you should take off your lens immediately and see a doctor immediately.

(2) Chronic congestion: mainly manifested in limbal conjunctiva or inner and outer canthus.

If the reason is possible, the disinfectant is not cleaned, irritating or allergic; It is also possible that the lenses are old and heavy.

The accumulation of sediment leads to traffic jams.

4. Dry eyes after wearing

(1) There is a thin lipid layer on the surface of normal tears for prevention.

Tears evaporated. After wearing contact lenses, this lipid layer will not be as stable as before.

On the surface of tears, the evaporation of tears naturally accelerates.

(2) The lens is worn, and there are too many deposits, so the oxygen permeability is decreased, and the conjunctiva rubs against the lens.

Feel dry.

(3) Wearing the lens too tightly, poor tear circulation, corneal edema, lack of oxygen, and feeling dry and uncomfortable.

(4) Wear it for a long time, especially overnight, and you will generally feel dry the next morning.

(5) Do you often use some influential strontium mitigation devices? Hey? * *, sedative,

Contraceptive pills, anti-ulcer drugs of digestive tract, antihypertensive drugs, etc. First of all, it is necessary to distinguish whether the tear secretion is normal.

If ophthalmologists find that tears are insufficient and the cornea is dry, they should stop wearing contact lenses.

Glasses; If the tear secretion is normal and the cornea and conjunctiva are normal, the following principles can be adopted:

* Replace contact lenses of other brands, and pay attention to wearing lenses with appropriate tightness, for customers with dry eyes.

Suitable for lenses with low water content.

* Reduce the daily wearing time and wear days per week.

* Blink as much as possible or avoid wearing contact lenses in air-conditioned, hot, smoky and windy places.

* Insist on maintaining lenses.

* Use artificial tears and lubricants no more than 5 times a day to avoid covering up the illness.

* If necessary, take vitamins A and B2 orally.

5, 4 to 5 hours after wearing, there is a burning sensation, fogging, and the light has an aperture.

It may be that the tight lens leads to poor tear circulation, difficult discharge of corneal metabolites and corneal metabolism.

The required oxygen and nutrients can not be replenished in time, resulting in corneal edema. Another possibility is to make lenses.

Too long time leads to too much protein precipitation on the lens.