Dizziness when the elderly open their eyes may be related to poor sleep quality, or it may be caused by high blood pressure, otolithiasis and other reasons. 1. Poor sleep quality: If the elderly recently have poor sleep quality, resulting in insufficient sleep time, the brain does not get sufficient and reasonable rest, it may show dizziness with eyes open, and may also be accompanied by sleepiness, weakness and other manifestations. 2. Hypertension: If the elderly have high blood pressure, poor control of blood pressure, resulting in frequent fluctuations in blood pressure, there may be the phenomenon of dizziness with eyes open, mainly due to increased pressure inside the cerebrovascular system, which may be accompanied by headache, nausea and other symptoms. 3. Otolithiasis: also known as benign paroxysmal positional vertigo. When the elderly sleep process suddenly turn over, it is likely to lead to otoliths dislodged to the semicircular canals, will cause vertigo, this time can be due to physical discomfort wake up, often mistaken for dizziness when you open your eyes. Dizziness with eyes open in the elderly may also be related to other factors. If the symptoms continue to be unrelieved, you should seek medical attention as soon as possible to diagnose the cause and give targeted treatment.