Fungal eye infection symptoms

It is said that eyes are the windows to the soul, but do you take good care of your eyes? Do you pay attention to hygiene every day and take adequate rest after eye fatigue? Eyes are more susceptible to infection and are not easy to recover from infection, so you need to care for your eyes like you would a baby. Do you know the symptoms of fungal eye infection? Please read the following introduction to learn more.

Fungal keratitis caused by trauma usually occurs 1-4 days after the trauma, with an average incubation period of 2-3 days. When patients seek medical advice, they often complain of eye redness, pain, and blurred vision. During ophthalmological examination, separation of signs and symptoms was found as one of the characteristics of this disease. That is, although there was obvious mixed congestion, corneal ulcer, and even anterior chamber abscess, the patient had no blepharospasm and could open his eyes naturally, which was in sharp contrast to bacterial keratitis.

The morphology and color of the ulcers in this disease may vary depending on the infecting strain. Their common characteristics are that there is grayish white or yellowish white hyphae in the center of the ulcer, the surface is rough and slightly raised on the cornea, the ulcer area is densely infiltrated, and it is difficult to cut through the optical section. The boundary between the lesion and the healthy cornea is quite clear. The cornea at the ulcer is mainly infiltrated, the edema is relatively mild, the edges of the hyphae are rough and unclear, and it is surrounded by a circle of inflammatory cell infiltration, called the reaction ring. Sometimes a dividing groove appears between the hyphal focus and the reflection ring. Some lesions are surrounded by radial infiltration, while others are dot-like infiltration, which are called satellite lesions. One-half of the cases may be accompanied by anterior chamber abscess, and the pus is mostly grayish white or light yellow.

Corneal perforation is seen in approximately 12% of cases. If there is a dual infection of bacteria and fungi, the disease will develop rapidly. In some cases, fungal malignant glaucoma is caused by pupil closure. Fungal keratitis should be differentiated from bacterial keratitis and has the following characteristics: Fungal causes: often with a history of trauma by plants or foreign bodies; Irritation symptoms: mild; Secretions: mucous; Ulcer morphology: clear boundaries, latex-like necrosis on the surface, slightly raised; Course of disease: slow onset, slow development, long course, and may recur. Bacterial causes: There may be a history of trauma or chronic dacryocystitis; Irritation symptoms: severe; Secretion: purulent; Ulcer morphology: fuzzy boundaries, purulent secretions attached to the surface; Course of disease: Acute onset, rapid development, and can reach a peak within a few days.

Fungal keratitis is an infectious corneal disease caused by pathogenic fungi and has a very high blindness rate. Fungal keratitis has a slow onset and a long course, which can last up to 2 to 3 months, and corneal ulcers often appear within a few days of onset. In our country, most of the patients are farmers.

Causes

Fungal keratitis is an infectious corneal disease caused by pathogenic fungi and has a very high blindness rate. So far, more than 70 species of fungi have been found to cause corneal infections. According to their different pathogenic effects in eye infections, fungi are divided into two major categories: filamentous fungi and yeasts.

1. Common pathogenic fungi

For Fusarium and Aspergillus. Others include Candida, Penicillium and yeast.

2. History of vegetative trauma to the eye

Common injuries include thorns from tree branches, sugarcane leaves, straw, etc.

3.Local resistance decreased

For example, after a contact lens abrasion or corneal surgery, pathogenic fungi can invade the cornea, because these fungi can also be isolated from the conjunctival sac of 3% to 28% of healthy people.