What is an acute hemorrhagic conjunctivitis
Acute hemorrhagic conjunctivitis (abbreviated AHC) is a newly discovered kind of eye disease, the Department has caused by enterovirus type 70 is now spread around the world, become the one of the most common human eye disease. The incidence of the disease, fast, strong and can be infectious and have subconjunctival hemorrhage and corneal epithelial damage and so on.
1, the incubation period the incubation period is short, usually for 24 hours. No longer than 3 days. Laboratory errors intraocular inoculation can be 18 to 36 hours to isolate the virus from the eye.
2, sleep onset symptoms of acute, at the beginning for both eyes, but also as a monocular, but rapidly involving the eyes. Morbidity after radical of the foreign body sensation, eye pain and photophobia of eyes in tears and other symptoms. Beginning of the serous secretions, mucous fibrin into the future. The general situation in the virus 2 days the development of a peak of 3 ~ 4 days gradually reduced, 7 ~ 10 days after return to normal. A small number of cases of headache, fever, stuffy nose, sore throat and other symptoms.
3 Symptoms include swollen eyelids, subconjunctival hemorrhage, multiple corneal epithelial exfoliation, point-like subepithelial infiltration, conjunctival hyperemia, edema, conjunctival follicles, and preauricular lymph node enlargement.
(1) the severity of swelling of the eyelids is different to occur in all patients. The swelling of the swelling is not accompanied by red pain, usually a few days can be dissipated.
(2) the performance of the conjunctiva
1) The incidence of subconjunctival hemorrhage as high as 70%, and hence "acute hemorrhagic conjunctivitis," said. Predilection sites in the temporal above the bleeding for the spots, or flake, color red, in severe cases can affect the whole have a subconjunctival hemorrhage, and traumatic subconjunctival hemorrhage very similar. Bleeding in 1 to 2 days, which took place within about one week of light by self-absorption, weight are required to be absorbed in January. Whether on the basis of clinical subconjunctival hemorrhage is divided into two types: a blood type more common in younger patients; edema-type were seen in elderly patients.
2) follicles less than the EKC. Early edema due to conjunctivas not obvious, 3 to 4 days until swelling subsided, in order to find more small Qionglong Bu conjunctiva of the follicles.
(3) the performance of the cornea
A) multiple multi-film high incidence of epithelial exfoliation. After three hours of onset of corneal epithelium can appear multiple needle sizes, epithelial exfoliation, showed scattered or arranged in strip, sheet distribution, is caused by eye pain, foreign body sensation in the main. 3 ~ 4 in the future may go away, a few continued for more than 2 weeks.
2) punctate subepithelial infiltration by about 30% of the patients with conjunctivitis subsided after subcutaneous infiltration on the dot. Infiltration is usually only a few points, mostly in the center of the cornea must be found through the slit lamp. Most of them in 1 ~ 4 weeks away. Generally does not cause visual impairment. Corticotropin-point eye, can disappear within a few days.
(4) Other symptoms of the onset of illness in most cases, it can have ears before the submandibular lymph nodes, and tenderness. The symptoms of conjunctivitis subside with the disappearance. A very small number of cases can still occur iritis change.
(5) the clinical rare neurological complications. Currently, only 35 cases reported in India, Senegal, 8 cases, 33 cases of Taiwan, China, Shanghai, in 10 cases. Shen Ye synthesis reported in the literature, this complication has the following characteristics: ① to occur in adult males; ② conjunctivitis often occurs after 2 ~ 3 weeks; ③ prodromal symptoms of fever, malaise, headache and flu-like symptoms; ④ beginning of the performance of the nerve root irritation and drastic strength is low, a few days later showed palsy; ⑤ flaccid paralysis, mainly involving the lower extremities; ⑥ attention can result in muscle atrophy, mild or moderate who return to normal. Although the nervous system complication rate is very low, but more serious and can be left permanently paralyzed, therefore worthy of vigilance.
Antibiotics and sulfa drugs for the disease basically null and void, corticosteroids reduce the inflammatory response. For the intestinal virus is currently no effective drug, with only hydroxyl benzyl-benzimidazole tissue culture system, 50 micrograms / ml can effectively inhibit enterovirus type 70 Coxsackie A24 type, carried out for the future prevention and treatment of this disease, providing an experimental basis. China reported wash with cold saline or mercury to achieve a certain effect of the treatment agent drops by.
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