Six classifications and symptoms of cataract

Cataract is an eye disease with a high rate of blindness at present. At present, surgery is the main treatment. Some patients can recover their vision after surgery, but some patients will unfortunately become permanently blind. At present, the etiology of cataract is different in clinic, and it can be divided into six categories according to the etiology.

Operation method

Congenital cataract: it is also the most common kind. With the increase of the patient's age, after the age of four or fifty, the crystal will slowly become hardened and turbid, which will gradually cause visual impairment. Congenital cataract is often caused by heredity, chromosome compilation, intrauterine infection and other reasons. Generally, soon after the birth of a baby, white or gray turbid spots can be seen in its pupils.

Senile cataract: This kind of cataract belongs to aging phenomenon. With the growth of age, the lens in the eyeball will slowly become hardened and turbid, thus causing visual impairment. Most of them are fog vision, color vision change, black spots in front of eyes, diplopia, etc.

Metabolic cataract: Cataracts caused by endocrine diseases or biochemical abnormalities are common, such as diabetes, hypokalemia, thyroid insufficiency and other diseases may cause cataracts.

Traumatic cataract: The aqueous humor is poured back due to the strong shock of the lens or the rupture of the lens capsule, which is mostly caused by traffic accidents, blunt injuries, and sharp objects. The main manifestation is the rupture of the lens capsule. The aqueous humor enters the lens, forming edema, vacuoles, and then the lens.

Complicated cataract: caused by other ophthalmic diseases. Because of eye inflammation or other degenerative diseases, the nutrition or metabolism of the lens is impaired, resulting in turbidity. It is commonly seen in uveitis, retinitis pigmentosa and retinal detachment.

High myopia with cataract: It is commonly seen in patients over middle age with high myopia, mainly manifested as floaters, macular hemorrhage, fundus retina, etc.