Dizziness and swollen eyes are usually caused by overuse of eyes, glaucoma, renal insufficiency and other factors, and can be treated with medication under the guidance of a doctor. 1. Excessive use of eyes: reading books or electronic products for a long time will lead to excessive use of eyes, sore and swollen eyes, and if you do not take a rest in time to relieve the situation, it will lead to aggravation of the situation with symptoms of dizziness and swollen eyes. 2. Glaucoma: due to excessive myopia, heredity and other factors, can lead to aqueous humor circulation obstacles, so that intraocular pressure increases, and ultimately lead to glaucoma. When the intraocular pressure continues to rise, the eyes may become congested, edematous and accompanied by symptoms of dizziness. 3. Renal insufficiency: Due to the metabolic dysfunction of the body, it will lead to water and sodium retention in the body, which will lead to puffy eyes. Renal insufficiency will lead to low urination, which may affect the blood supply to the brain and cause hypoxia, which will lead to the symptoms of dizziness. When dizziness and swollen eyes, you need to consult a doctor in time for diagnosis, clarify the cause and then treat the cause.