foreign body injury

Introduction

Introduction to foreign body injury The most common eye trauma is damage to the sclera, cornea and conjunctiva by foreign bodies. Although most foreign body injuries are mild, some cases are severely injured, such as corneal scratches combined with infection. The most common eye surface damage is caused by contact lens. The contact lens does not match the cornea, the wearing time is too long, the contact lens is not removed when sleeping, the disinfection method is improper, and the force is too strong or improper when wearing the contact lens. Scratching the surface of the eyeball, other foreign objects that may cause damage to the surface of the eyeball are glass crumbs, sand, branches, gravel, workers engaged in certain occupations, often small foreign objects splash on the face, such workers should wear protection when working glasses. basic knowledge The proportion of illness: 0.3% Susceptible people: no special people Mode of infection: non-infectious Complications: acute cellulitis

Cause

Foreign body injury

The most common eye surface damage is caused by contact lens. The contact lens does not match the cornea, the wearing time is too long, the contact lens is not removed when sleeping, the disinfection method is improper, and the force is too strong or improper when wearing the contact lens. Scratching the surface of the eyeball, other foreign objects that may cause damage to the surface of the eyeball are glass crumbs, sand, branches, gravel, workers engaged in certain occupations, often small foreign objects splash on the face, such workers should wear protection when working glasses.

Prevention

Foreign body injury prevention

Whether or not the foreign body of the eyelid needs to be taken out depends on the physical and chemical properties, size, position and degree of damage to the eye tissue. It is not necessary to take out it. For example, the metal foreign body is large, the surface is not neat, and it is located in the front of the iliac crest, compressing the nerves and blood vessels, and stimulating. Symptoms are heavy, or bamboo, wood and other organic matter, should be surgically removed, for small eyes, smooth surface, located in the back of the sputum and steel, aluminum, lead and other inactive metal foreign bodies, generally do not cause pain or inflammatory reaction can be resistant General treatment such as infection, do not force to take out, so as not to affect vision.

Complication

Foreign body injury complications Complications acute cellulitis

If a purulent infection is combined, it can cause cellulitis or sputum, and foreign matter can be brought into pathogenic microorganisms, which can cause intraocular infection and blindness.

Symptom

Symptoms of foreign body injury Common symptoms Eye foreign body sensation Eye red eyes edema Eyes tingling

When a foreign body enters the surface of the eye, it often shows pain, foreign body sensation, and there may be photophobia, redness, bleeding, edema of the eye and eyelids, and blurred vision.

Examine

Foreign body injury inspection

1. History of trauma. Such as tapping metal history, blast injury, etc. A small number of patients may have no history of conscious trauma.

2. Clinical manifestations. Often accompanied by symptoms and signs of eyeball perforation. According to the size, nature and injury of foreign bodies, the clinical performance can be varied in the morning and evening.

3. Examination of wounds and wounds. Perforation wounds were found to be an important basis for the diagnosis of foreign bodies in the ball. Such as corneal wound or full-thickness scar, the corresponding iris has small holes, crystal turbidity, indicating that foreign matter enters the eye, scleral wound is difficult to find, should be judged according to eye examination and auxiliary examination.

4. Imaging or electromagnetic method inspection. X-ray film, ultrasound, CT scan or magnetic resonance imaging can be used to detect foreign matter of different nature. These methods have their own advantages and can be selected according to the conditions. For magnetic foreign objects, an electroacoustic foreign object locator can also be used to help diagnose.

Diagnosis

Diagnosis and identification of foreign body injury

Diagnosis can be made based on clinical manifestations, symptoms, etc., and can be diagnosed according to eye examination and auxiliary examination methods.

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