What causes headache after blurred vision

Many elderly people suffer from presbyopia due to their own physical degeneration, and the main symptom of presbyopia is the inability to see things clearly. However, some elderly people occasionally experience dizziness, which is accompanied by headaches. And this situation is very common among the elderly, so what exactly is the cause of headache after dizziness?

hypertension

Causes

1. Genetic factors

About 60% of patients with hypertension have a family history. It is currently believed to be caused by polygenic inheritance, and 30% to 50% of patients with hypertension have a genetic background.

2. Mental and environmental factors

Long-term mental stress, excitement, anxiety, noise or adverse visual stimulation can also cause hypertension.

3. Age Factor

The incidence rate tends to increase with age, and is highest in people over 40 years old.

4. Lifestyle factors

An unreasonable dietary structure, such as excessive sodium salt, low-potassium diet, heavy drinking, and excessive intake of saturated fatty acids can all increase blood pressure. Smoking can accelerate the process of atherosclerosis and is a risk factor for hypertension.

5. Effects of medications

Contraceptives, hormones, anti-inflammatory and analgesic drugs, etc. can all affect blood pressure.

6. Influence of other diseases

Obesity, diabetes, sleep apnea-hypopnea syndrome, thyroid disease, renal artery stenosis, renal parenchymal damage, adrenal space-occupying lesions, pheochromocytoma, other neuroendocrine tumors, etc.

Clinical manifestations

Symptoms of high blood pressure vary from person to person. There may be no symptoms or mild symptoms in the early stages. Common symptoms include dizziness, headache, stiff neck, fatigue, palpitations, etc. Blood pressure only rises after fatigue, mental stress, or emotional fluctuations, and returns to normal after rest. As the disease progresses, blood pressure continues to rise significantly, and various symptoms gradually appear. This is called slow-onset hypertension. Common clinical symptoms of slowly progressive hypertension include headache, dizziness, inattention, memory loss, limb numbness, increased nocturia, palpitations, chest tightness, fatigue, etc. The symptoms of hypertension are related to blood pressure levels. Most symptoms can be aggravated after stress or fatigue. Blood pressure can rise rapidly after early morning activities, resulting in morning hypertension, which causes cardiovascular and cerebrovascular events to occur more frequently in the early morning.

When blood pressure suddenly rises to a certain level, symptoms such as severe headache, vomiting, palpitations, dizziness, etc. may even occur. In severe cases, unconsciousness and convulsions may occur. This is a form of rapid hypertension and critical hypertension, which can cause serious damage and lesions to the heart, brain, kidneys and other organs in a short period of time, such as stroke, myocardial infarction, renal failure, etc. There is no consistent relationship between symptoms and the level of elevated blood pressure.

The clinical manifestations of secondary hypertension are mainly related to the symptoms and signs of the primary disease, and hypertension is only one of its symptoms. The increase in blood pressure in patients with secondary hypertension may have its own characteristics. For example, hypertension caused by aortic stenosis may be limited to the upper limbs; the increase in blood pressure caused by pheochromocytoma is paroxysmal.