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Updated: Jul 10, 2026
09:03
Trabecular Meshwork Response to Pressure Elevation in the Living Human Eye
Published on: June 20, 2015
Variation of blood pressure during topical phacoemulsification
Y C Yap1, W W Woo, T Kathirgamanathan
1Department of Ophthalmology, Watford General Hospital, UK. eyapyc@gmail.com
Eye (London, England)
|October 20, 2007
Summary
Blood pressure significantly rises during cataract surgery, particularly in females. This study monitored blood pressure changes in cataract patients, highlighting the need for further research into contributing factors.
Area of Science:
- Ophthalmology
- Cardiology
- Anesthesiology
Background:
- Blood pressure fluctuations during cataract surgery are not well-documented.
- Uncontrolled intraoperative blood pressure can lead to procedure postponement and serious complications like suprachoroidal hemorrhage, stroke, or myocardial infarction.
- Understanding these blood pressure changes is crucial for patient safety during ophthalmic procedures.
Purpose of the Study:
- To prospectively investigate the variations in blood pressure among patients undergoing cataract surgery.
- To analyze blood pressure changes at different stages: pre-assessment, arrival, anesthetic room, intraoperative, and postoperative.
Main Methods:
- Blood pressure was measured in five stages for patients undergoing cataract procedures.
- Data were collected pre-assessment, on arrival, in the anesthetic room, intraoperatively, and postoperatively.
- Readings were analyzed in relation to patient demographics, medical history, and antihypertensive medication use.
Main Results:
- A statistically significant rise in systolic blood pressure was observed intraoperatively compared to pre-assessment and anesthetic room readings.
- Factors such as older age (>65), use of multiple antihypertensive drugs, pre-existing hypertension, or family history did not significantly increase the risk of blood pressure rise.
- The most significant increase in systolic blood pressure was noted in female patients.
Conclusions:
- Cataract surgery, specifically topical phacoemulsification, is associated with a significant increase in systolic blood pressure, especially in females.
- Further research is required to identify the specific factors contributing to this intraoperative blood pressure elevation.
- Understanding these dynamics can help optimize surgical planning and patient management.
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