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Ocular signs of systemic hypertension: a review
P G Hurcomb1, J S Wolffsohn, G A Napper
1Neurosciences Research Institute, School of Life and Health Sciences, Aston University, Aston Triangle, Birmingham, UK.
Insights
Systemic hypertension, a major cause of death and visual impairment, often goes undetected. Early diagnosis and management by optometrists, through retinal sign observation, are crucial for reducing risks.
Area of Science:
- Ophthalmology
- Cardiology
- Public Health
Background:
- Cardiovascular disease and stroke are leading causes of death and visual impairment.
- Systemic hypertension often presents asymptomatically for years, increasing mortality and morbidity.
- Early diagnosis and management of hypertension significantly reduce adverse outcomes.
Purpose of the Study:
- To review the role of optometrists in detecting and referring patients with systemic hypertension.
- To examine the retinal signs indicative of hypertensive disease.
- To discuss current and emerging methods for detecting hypertensive retinopathy.
Main Methods:
- Review of existing literature on systemic hypertension and its ocular manifestations.
- Analysis of traditional and advanced image analysis techniques for identifying retinal hypertensive signs.
- Discussion of the optometrist's role in patient detection, monitoring, and referral.
Main Results:
- Optometrists' current ability to detect and refer systemic hypertensives is generally insufficient.
- Retinal signs offer a critical window for observing the effects of hypertension.
- Newer image analysis techniques show promise for improved detection accuracy.
Conclusions:
- Enhanced optometric screening for hypertensive retinopathy is vital for early disease detection.
- Improved optometrist training and utilization of technology can significantly impact patient outcomes.
- Addressing the gap in optometric detection of systemic hypertension is a key public health priority.
Abstract:
Cardiovascular disease and stroke continue to be the chief causes of death in developed countries and one of the leading causes of visual impairment. The individual with systemic hypertension may remain asymptomatic for many years. Systemic mortality and morbidity are markedly higher for hypertensives than normotensives, but can be significantly reduced by early diagnosis and then efficient management. However, the ability of Optometrists to detect and appropriately refer systemic hypertensives remains generally poor. This review examines the disease, its effects and detection by observation of the retinal signs, particularly those considered to be pre-malignant. Previous methods of classifying retinal hypertensive signs are discussed along with more recent image analysis techniques. The role of the optometrist in detecting, monitoring and appropriate referral of systemic hypertensives is discussed in relation to current research.