Two main causes of cataract

The release date:2019-10-17

All kinds of causes, such as aging, heredity, local nutrition disorder, abnormal immunity and metabolism, trauma, poisoning, radiation, etc., can cause lens metabolism disorder, lead to lens protein degeneration and turbidity, leading to cataract. The disease can be divided into congenital and postnatal nature:

1. Congenital cataract

It is also called developmental cataract. It usually exists before and after birth. It is mostly static type and can be accompanied with genetic diseases. There are two types: endogenous and exogenous. The endogenous is related to fetal development disorder. The exogenous is caused by the damage of the whole body of the mother or fetus to the lens. The congenital cataract is divided into anterior polar cataract, posterior polar cataract, nuclear cataract and all white internal cataract Barrier.

2. Acquired cataract

There are 6 types of lens opacification after birth due to systemic or local ophthalmopathy, abnormal nutrition and metabolism, poisoning, degeneration and trauma

① senile cataracts, the most common, also called age-related cataracts, are more common at the age of over 40, and increase with the age, and are related to many factors, such as the elderly metabolism slow occurrence of degenerative diseases, and some people think that it is related to long-term sunlight exposure, endocrine disorders, metabolic disorders and other factors, according to the location of primary turbidity can be divided into two categories: nuclear and cortical.

② complicated cataract (complicated with other eye diseases).

③ traumatic cataract.

④ metabolic cataract.

⑤ radiation cataract.

⑥ drug and toxic cataract.

WeChat attentionLove, new hope
Eye eye early know love
Love, new customer service center
Support WeChat reservation consultation