You Are Suggested Pay More Attention To Eye Illness Supposed You Have Too Much Tears
Why do we often cry: under normal circumstances, our tears secreted by lacrimal glands and accessory lacrimal glands after every blink can be brought into equilibrium through the lacrimal drainage system or evaporation. The lacrimal fluid covers the whole sunglasses surface of the eyeballs so that they can be maintained moist and comforable, and meanwhile, we can’t feel tear drops. When lacrimal glands secreted too much or there’s something wrong with its excretory system so that we would feel our tears. Many factors would lead us secrete too much tears, including our mental stimulation.
The reflex stimulation of foreign body: the effects of cholinergic drugs and anti-cholinesterase agents, and other drugs; some eye diseases such as glaucoma, eyelids, conjunctiva, iritis and others. Or, trigeminal nerve and facial nerve stimulus. If too many tears could not be evaporated or defecated in time, it may hard for us to stop crying.
The failures of the excretory system of tears usually include abnormal lacrimal point position, closeness or atresia, the closeness and blockage from the lacrimal duct to nasolacrimal cannal and lacrimal dysfunction, so that the tears can not be discharge The higher incidence is in the elderly and often present as watering in the wind. And symptoms will be aggravated in cold climates, even often sweep regardless of four seasons in one year, indoor or outdoor.
Snow blindness: also known as snow light ophthalmia, mainly because of the strong ultraviolet rays in sunlight reflected by large snow to the eye cornea, leading to corneal trauma. Researches glasses have found that if the 300-micrometre UVB rediates to the snow ground, its reflexion will lead to snow blindness when reflected to your eyes. There are photophobia, tears, swelling pain, itching and intraocular foreign body sensation and other symptoms. Therefore, when go out on the snow days, you had best wear sunglasses to prevent snow ground reflecting strong light from stimulating the eyes.
chronic conjunctivitis: in autumn and winter, chronic conjunctivitis is the main cause for regular lachrymation, and it can be divided into two categories: infectious and non-infectious. The former is caused by the inflammation due to pathogens. Bacterium, virus, chlamydia, fungus and so forth will result in it. The occurrence of Non-infectious chronic conjunctivitis is mainly related to environment and the habbit to use eyes, and its prevalence rate is increasing day after day. The stimulation of the sand, dust, smoke and harmful gas and often stay up late, lack of sleep, too much smoking, eye fatigue, which will lead to chronic conjunctivitis.
Dry eyes: dry eyes eyeglasses can lead to flowing tears for elderly. The dry and cold winter is the peak season of dry eyes. It will make less basic tears and let us feel eyes dry and unwell. If the surface of eyeball is damaged, the eye will burst into tears dramatically in responds. Menopausal women, allergic conjunctivitis patients, people who had contracted trachoma when they are young, people who have scarring tissue on cornea are liable to weep because of lipid tear deficiency. Nasolacrimal duct occlusion: many old people often cry because of nasolacrimal duct occlusion. The inlet of the nasolacrimal duct is at the lower eyelid near the nosewing, while the outlet is inside of the nasal cavity.
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“Teardrop” – Massive Attack
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