Nowadays, there are more and more people wear contact lenses. Do you know that not all people can wear contact lenses. Here are 4 situations that can't wear.
1. Contraindication for eyes ( low secretion of tears, low quality of tears, dry eye). Because too little tears or low quality can affect moisture of contact lenses, for one thing cause foreign sensation, for another cause image quality lower. Besides, dacryocystisis/pink eyes/amblyopia/glaucoma sufferer can not wear, either.
2. Contraindication of health, for example, sinusitis patient. Because bacteria can go through nasolacrimal duct to corneas, which cause polluted. Besides, serious diabetes patients/women in the early days of pregnancy/people take medicine of hormones or atropine are unfit for wearing contact lenses either.
3.Contraindication for personal conditions. People who are too old/too young/disabled can not wear themselves. People who has bad personal hygiene or not obey wearing rules can not wear either.
4.Contraindication for environment. If you live or work in serious dust/mog/acids/alkalis/volatile environment, you can not wear either.