Brown light reflex in the anterior chamber of the eye lens

Introduction The brown light reflection in the anterior chamber of the lens is considered to be "mercury lenticular inflammation" caused by mercury deposition. This brown light reflection can persist after the symptoms of poisoning disappear or are separated from mercury. It is another marker of mercury absorption. . Mercury poisoning is more common in chronic conditions, mainly in production activities, caused by long-term inhalation of mercury vapor and mercury compound dust. Psycho-neural abnormalities, gingivitis, and tremor are the main symptoms. Acute mercury poisoning occurs when high-dose mercury vapor inhalation or ingestion of mercury compounds occurs. Those who are allergic to mercury may be poisoned even if they are partially coated with a mercury oil base.

Cause

The cause of brown light reflex in the anterior chamber of the lens is considered to be "mercury lenticular inflammation" caused by mercury deposition, which is often caused by occupational inhalation of mercury vapor. A small number of patients may also be caused by the application of mercury preparations.

an examination

Related inspection

Ophthalmology examination of whole blood mercury

1. Determination of urinary mercury and blood mercury:

To some extent, it reflects the absorption of mercury in the body, but it is often not related to the clinical symptoms and severity of mercury poisoning.

2. Chronic mercury poisoning patients:

There may be changes in EEG amplitude and rhythm electrical activity, slowing of peripheral nerve conduction velocity, increase in blood a2 globulin and reduced glutathione, and lysosomal enzymes, erythrocyte cholinesterase and serum thiol in blood. reduce.

3. X-ray chest:

It can be seen that the two lungs have extensive irregular shadows, and many of them merge into dots, flaky shadows, or have a ground-glass interstitial change.

Differential diagnosis

Eye crystal anterior chamber brown light reflection confusing symptoms:

Chronic mercury poisoning is distinguished from neurasthenia, Parkinson's, and chronic alcoholism.

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