Thick blood lipids have symptoms of chest tightness, chest pain, dizziness and blurred vision. If hyperlipidemia is serious, cardiovascular and cerebrovascular ischemia and hypoxia will occur. Myocardial ischemia will mainly cause angina, cerebrovascular ischemia will cause dizziness, slow thinking, numbness of limbs, and activity impairment, etc. It is mainly atherosclerosis caused by deposition in the dermis and blood vessels, and the hardened plaque is attached to the inner wall of blood vessels It causes narrowing and blockage of blood vessels, resulting in cardiovascular diseases. Older patients will experience paroxysmal blurred vision, increased blood viscosity, slowed blood flow, inability to adequately nourish the retinal nerve or temporary ischemia and hypoxia of the optic nerve, and will see things clearly at times and blurred at others.