Deep research and expert guides on maintaining your visual health.
The Nighttime Blood Pressure Dip: A Hidden Driver in Normal-Tension Glaucoma Normal-tension glaucoma (NTG) is a type of glaucoma where the optic nerve deteriorates even though eye pressure is normal. In NTG, experts believe blood flow to the optic nerve plays a key role. The ocular perfusion pressure (OPP) – roughly the difference between blood pressure in the eye’s vessels and the eye’s internal...
Bedtime antihypertensives are medicines for high blood pressure that a person takes in the evening instead of the morning. Blood pressure normally follows a daily rhythm, often falling at night and rising again during the day, and the timing of medication can influence that pattern. Taking blood pressure drugs at bedtime can help control nighttime and early-morning blood pressure, which may reduce the risk of heart attacks and strokes that happen when pressure spikes. However, shifting medicines to night can also cause blood pressure to become too low while sleeping in some people, which may reduce blood flow to vital organs. For people with conditions that rely on steady nighttime blood flow, such as certain eye or kidney problems, overly low nocturnal pressure can be harmful. That means the choice to move medicine to bedtime should be made with a doctor, considering other health issues, which drugs are used, and the results of home or clinic blood pressure checks. Doctors sometimes recommend monitoring blood pressure over 24 hours with a wearable monitor to see how a person's pressures change through the day and night. If bedtime dosing is used, regular follow-up is important to check symptoms like dizziness, fainting, or worsening of chronic conditions. When managed carefully, timing medication can be a useful tool to improve long-term cardiovascular risk and overall blood pressure control. Open communication with your healthcare team ensures that the benefits of any timing change outweigh the risks for your particular health situation.
