The following are some of the causes of eye swelling due to hypertension: 1. Long-term hypertension can cause renal vascular stenosis and reduced renal blood flow, leading to the occurrence of nephropathy, resulting in abnormal kidney function, leading to facial swelling and eye edema. 2. In the course of hypertension treatment, some Ca+2 antagonists can be used, such as nifedipine, amlodipine, etc. These antihypertensive drugs can lead to angioedema, such as eye swelling, leg swelling, etc. 3. These antihypertensive drugs can lead to angioedema, such as swollen eyes, swollen legs, etc. 3, long-term hypertension, blood vessels in a long-term state of high tension, can lead to increased vascular permeability, generally in the tissue loosening can lead to tissue fluid extravasation, the occurrence of edema, can lead to swollen eyes. All three of these aspects can lead to swollen eyes with high blood pressure.