If you or someone you care for is living with Alzheimer’s disease and vision seems to be changing, it can be difficult to know whether the problem is coming from the eyes or from the way the brain processes what is being seen. Both can happen. Alzheimer’s can affect how your brain makes sense of visual information, even when your eyesight remains relatively clear, while common eye conditions can occur at the same time. You may find it harder to

If you have Parkinson’s and have noticed changes in your vision, such as dry eyes, blurred vision or more difficulty reading, these changes may be linked to the condition. Some visual problems are linked to Parkinson’s, while others may result from medication, ageing or separate eye conditions. If your vision changes persist, an eye assessment can help identify the cause. Why Can Parkinson's Disease Affect Your Vision? Parkinson’s affects brain systems involved in movement, eye control and visual processing, so

If you have high blood pressure, you may wonder whether it can affect your eyesight. Over time, raised blood pressure can damage the small blood vessels in your retina and lead to a condition called hypertensive retinopathy. You may not notice any changes in your vision at first. Regular blood pressure checks and eye examinations can help identify problems early and support appropriate management of your eye and vascular health. What Does High Blood Pressure Mean? Your blood pressure measures

If you have Crohn’s disease, you may mainly associate it with digestive symptoms such as abdominal pain, diarrhoea or fatigue. However, Crohn’s can also cause inflammation outside your digestive system, including problems affecting your eyes. You may develop relatively mild conditions such as episcleritis or more significant inflammation such as uveitis. The symptoms can vary depending on which part of your eye is affected. You may notice redness and irritation, while deeper inflammation can cause pain, light sensitivity or blurred

If you have lupus, you may already know that it can affect more than your joints or skin. Because lupus can cause inflammation throughout your body, it may also affect your eyes and vision. You may experience relatively mild problems such as dryness, grittiness or irritation, while less commonly, lupus can cause inflammation in deeper parts of the eye. Hydroxychloroquine is an important treatment for many people with lupus, but prolonged treatment can cause retinal toxicity in a small proportion

If you have rheumatoid arthritis (RA), you may think mainly about painful, swollen or stiff joints. However, RA is an autoimmune condition that can also affect other parts of your body, including your eyes. You may experience dry, gritty or irritated eyes, while some people develop inflammation that causes redness, discomfort or pain. Not every episode of eye irritation is linked to RA, but knowing the possible signs can help you recognise when you may need medical advice. Understanding the

If you have a thyroid condition, you may not immediately realise that it can affect your eyes. Thyroid eye disease (TED), particularly associated with Graves’ disease, can cause dryness, redness, swelling, discomfort, double vision and changes in the appearance of your eyes. However, having thyroid disease does not automatically mean you will develop eye problems. TED is an autoimmune condition in which the immune system mistakenly targets tissues around your eyes, including the eye muscles and connective tissue, causing inflammation

If you have multiple sclerosis (MS), changes in your vision can sometimes be one of the first signs that something is affecting your nervous system. You may notice blurred vision, changes in colour, pain when moving your eye or double vision. These symptoms can feel unsettling, particularly when they appear suddenly. MS can affect vision in different ways, so your eyes may be healthy while the optic nerve or parts of the brain controlling vision and eye movement are affected,

Artificial intelligence may seem like a recent development in eye care, but researchers have explored computer-assisted diagnosis in ophthalmology for several decades. If you have an eye examination today, you may encounter digital imaging and computer-based analysis that can help your specialist identify and monitor eye conditions. As technology has advanced, AI has become increasingly capable of analysing retinal photographs, optical coherence tomography scans and other clinical information. For you, these developments may support image interpretation, screening or earlier identification

Contact lenses have evolved from early experiments with water and glass into comfortable designs that can correct a wide range of vision problems. If you wear contact lenses today, you can choose from options designed to improve your vision while supporting comfort and eye health. Modern lenses include soft, rigid gas-permeable and scleral designs, with specialised options for astigmatism and presbyopia. Each stage of development has helped give you better vision, greater comfort and more personalised lens choices. Leonardo da