An overview of polycythemia retinopathy?

summary

Primary polycythemia vera. It is rare in China. It is generally believed that compensatory (or relative) polycythemia caused by hyperhematopoiesis of bone marrow is a compensatory reflection of decreased arterial oxygen pressure. An overview of polycythemia retinopathy? Let's talk about it

An overview of polycythemia retinopathy?

In addition to the fundus changes, the eyelids may be purplish red, the eyelid conjunctival blood vessels are dilated and filled, and small bleeding points can be seen. The dilation and filling of bulbar conjunctival blood vessels are especially important in the peripheral blood vessels, which can be seen as spiral dilation and scattered small bleeding points, and the dilation of superficial scleral blood vessels can also be seen. Iris vessels dilated and filled, resulting in thickening of iris tissue and shallowing or flattening of iris recess and folds in ciliary region.

The changes of optic disc may include blurring and hyperemia of optic disc boundary and blurring of physiological depression caused by dilation of surface capillaries. Sometimes there may be optic disc edema, which can be as high as 2-3 diopters. The cause of optic disc edema may be the increase of blood viscosity and slow blood flow, resulting in the blockage of optic disc small vessels. The occurrence and degree of optic disc changes are directly proportional to the increase of red blood cell number.

Visual acuity may be normal or have transient blurred or transient amaurosis. Photophobia, visual fatigue, flash hallucination, flying mosquito illusion, night vision impairment, black spots or dark spots in front of eyes, visual field defect and diplopia may occur. The above symptoms may be accompanied by fundus changes. If there are no fundus changes and the above symptoms, retrobulbar lesions or intracranial lesions, such as cerebral hemorrhage or cerebral thrombosis, should be considered.

matters needing attention

The patients with primary heart disease can be treated with X-ray or 32P. They can also be treated with repeated phlebotomy, hemodilution, oxygen and traditional Chinese medicine. The patients with congenital heart disease can be operated; The drug users stopped using drugs; Those who live in plateau should leave plateau area.