{"id":18730,"date":"2026-10-09T11:16:51","date_gmt":"2026-10-09T11:16:51","guid":{"rendered":"https:\/\/www.eyecliniclondon.com\/blog\/?p=18730"},"modified":"2026-10-09T11:17:02","modified_gmt":"2026-10-09T11:17:02","slug":"giant-cell-arteritis-vision-warning-signs","status":"publish","type":"post","link":"https:\/\/www.eyecliniclondon.com\/blog\/giant-cell-arteritis-vision-warning-signs\/","title":{"rendered":"Giant Cell Arteritis: Vision Warning Signs That Need Same-Day Care"},"content":{"rendered":"<p>If you are over 50 and develop new visual symptoms with a new headache, scalp tenderness or jaw pain, you need same-day assessment for giant cell arteritis (GCA).<\/p>\n<p>GCA can threaten your vision quickly. Your doctor may use blood tests, ultrasound or biopsy, but treatment may need to start before all results are available.<\/p>\n<h2>What Is Giant Cell Arteritis?<\/h2>\n<p>Giant cell arteritis (GCA) is inflammation of medium- and large-sized arteries, usually affecting people over 50. It often involves the arteries around your temples but can affect other blood vessels too.<\/p>\n<p>Your inflamed arteries can reduce blood flow to your optic nerve or retina. This can cause permanent sight loss, which is why suspected GCA needs urgent medical assessment and treatment.<\/p>\n<h2>Why Can GCA Threaten Your Eyesight?<\/h2>\n<p>Your optic nerve needs a steady blood supply to function. GCA can inflame and narrow the arteries supplying it, reducing oxygen and causing sudden, potentially permanent vision loss.<\/p>\n<p>Your vision can be affected severely and without pain. Established GCA-related sight loss is often permanent, so urgent treatment mainly aims to prevent further visual damage and protect the other eye.<\/p>\n<h2>What Visual Symptoms Can GCA Cause?<\/h2>\n<p>Your GCA can cause sudden blurred, dimmed or reduced vision. Your vision may also feel blocked by a shadow or curtain, or you may experience temporary loss of sight or double vision.<\/p>\n<p>Your visual symptoms can be painless but still serious. Any new or temporary change in your vision with possible GCA needs urgent medical assessment.<\/p>\n<h2>Why Is Temporary Vision Loss Still an Emergency Warning?<\/h2>\n<p>Your temporary loss or dimming of vision can be an early warning that GCA is affecting blood flow to your eye. Your sight may return, but the next episode could cause permanent damage.<\/p>\n<p>Your urgent assessment is especially important when visual symptoms occur with a new headache, scalp tenderness or jaw pain. Do not wait for another episode before seeking medical care.<\/p>\n<p><strong>Research Insight<\/strong><\/p>\n<p>Research and clinical reviews continue to emphasise that GCA is a time-critical condition when visual symptoms are present. Permanent visual loss often occurs before treatment is started, which is why clinicians aim to recognise the condition quickly and begin corticosteroid treatment when GCA is strongly suspected.<\/p>\n<p>Studies have also highlighted that GCA can present with different patterns of visual involvement, including transient visual symptoms before more permanent damage occurs. This means that visual symptoms should not be dismissed simply because your sight returns to normal.<\/p>\n<h2>Why Is Sudden Painless Vision Loss So Concerning?<\/h2>\n<p>Your GCA-related vision loss can happen suddenly without significant pain. Your vision may become blurred, colours may change or part of your visual field may disappear.<\/p>\n<p>Your sudden painless vision loss needs urgent assessment, especially if you are over 50 and have a new headache or other GCA symptoms. Treatment aims to prevent further sight loss, particularly in your other eye.<\/p>\n<h2>Can GCA Affect Both Eyes?<\/h2>\n<p>GCA can affect both of your eyes, even if vision loss initially occurs in only one eye. Because the other eye may also be at risk, recognising new visual symptoms and receiving prompt treatment are important.<\/p>\n<ul>\n<li><strong>Both eyes can be affected:<\/strong> Your GCA may affect both eyes, even when vision loss begins in only one eye.<\/li>\n<li><strong>The second eye may be at risk:<\/strong> If the inflammation remains active, your other eye may also be at risk of developing vision problems.<\/li>\n<li><strong>Corticosteroid treatment:<\/strong> High-dose corticosteroids are used to reduce inflammation and help lower the risk of further vision loss.<\/li>\n<li><strong>New visual changes need urgent attention:<\/strong> If you develop any new change in your vision, you should seek urgent medical advice even if you are already receiving treatment.<\/li>\n<\/ul>\n<p>GCA can threaten vision in either eye, so treatment and monitoring should not be delayed. Prompt medical attention for new visual symptoms can help reduce the risk of further sight loss.<\/p>\n<h2>What Kind of Headache Can GCA Cause?<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-18735\" src=\"https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T140305.428.jpg\" alt=\"\" width=\"1100\" height=\"600\" srcset=\"https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T140305.428-200x109.jpg 200w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T140305.428-300x164.jpg 300w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T140305.428-400x218.jpg 400w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T140305.428-600x327.jpg 600w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T140305.428-768x419.jpg 768w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T140305.428-800x436.jpg 800w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T140305.428-1024x559.jpg 1024w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T140305.428.jpg 1100w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" \/><\/p>\n<p>Your GCA can cause a new, persistent or unusual headache, often around your temples. Your temporal arteries may also feel tender, although they can appear normal.<\/p>\n<p>Your headache does not always need to be severe or typical of GCA. If you are over 50 and develop a new headache with visual symptoms, jaw pain or other warning signs, you need urgent assessment.<\/p>\n<h2>Why Can Your Scalp Become Tender?<\/h2>\n<p>Your GCA can make your scalp tender because inflamed arteries become sensitive. Your scalp may hurt when brushing your hair, wearing a hat or resting your head on a pillow.<\/p>\n<p>Your scalp tenderness does not confirm GCA by itself. However, if you are over 50 and also have a new headache, jaw pain or visual changes, you need urgent medical assessment.<\/p>\n<h2>What Is Jaw Claudication?<\/h2>\n<p>Your jaw claudication is pain, aching or tiredness that develops when you chew and improves when you stop. Your jaw muscles need more blood during chewing, and inflamed or narrowed arteries may not provide enough.<\/p>\n<p>Your jaw symptoms are an important clue to GCA, particularly with a new headache or visual changes. If you are over 50 and develop this pattern, you need urgent medical assessment.<\/p>\n<h2>What Other Symptoms Can GCA Cause?<\/h2>\n<p>Your GCA can cause tiredness, fever, night sweats, reduced appetite or unexpected weight loss. Your symptoms may appear before headaches or visual changes.<\/p>\n<p>Your GCA can also occur alongside polymyalgia rheumatica, causing pain and stiffness around your shoulders, neck or hips. Tell your doctor about all your symptoms, not just changes in your vision.<\/p>\n<h2>GCA Vision Warning Signs and Their Importance<\/h2>\n<table>\n<tbody>\n<tr>\n<td><strong>Vision symptom<\/strong><\/td>\n<td><strong>What you may notice<\/strong><\/td>\n<td><strong>Why it matters<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Sudden vision loss<\/td>\n<td>Your vision may become severely reduced or disappear in one eye.<\/td>\n<td>This can indicate reduced blood flow to the eye or optic nerve and requires urgent assessment.<\/td>\n<\/tr>\n<tr>\n<td>Temporary vision loss<\/td>\n<td>Your vision may become dim, blurred or blocked for a short period before returning.<\/td>\n<td>Temporary symptoms can be an early warning of ocular ischaemia and should not be ignored.<\/td>\n<\/tr>\n<tr>\n<td>Blurred or dimmed vision<\/td>\n<td>Your sight may suddenly become less clear or appear darker than usual.<\/td>\n<td>New visual changes can indicate that GCA is affecting the blood supply to your eye.<\/td>\n<\/tr>\n<tr>\n<td>Loss of part of your visual field<\/td>\n<td>You may notice a missing area, shadow or curtain affecting part of your vision.<\/td>\n<td>A new field defect can represent significant visual involvement and needs urgent assessment.<\/td>\n<\/tr>\n<tr>\n<td>Double vision<\/td>\n<td>You may see two images instead of one, either continuously or intermittently.<\/td>\n<td>Double vision can occur with GCA and requires prompt medical assessment, particularly when combined with other symptoms.<\/td>\n<\/tr>\n<tr>\n<td>Visual symptoms with headache or jaw pain<\/td>\n<td>You may develop a new headache, scalp tenderness or jaw pain alongside visual changes.<\/td>\n<td>This combination can increase concern for GCA and should be assessed urgently.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Who Is Most Likely to Develop GCA?<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-18736\" src=\"https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T140620.653.jpg\" alt=\"\" width=\"1100\" height=\"600\" srcset=\"https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T140620.653-200x109.jpg 200w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T140620.653-300x164.jpg 300w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T140620.653-400x218.jpg 400w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T140620.653-600x327.jpg 600w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T140620.653-768x419.jpg 768w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T140620.653-800x436.jpg 800w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T140620.653-1024x559.jpg 1024w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T140620.653.jpg 1100w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" \/><\/p>\n<p>Your risk of GCA increases with age, particularly after 50, and the condition is more common in women. Your ancestry and a history of polymyalgia rheumatica may also be relevant.<\/p>\n<p>Your age and risk factors do not diagnose GCA on their own. Your doctor will consider your symptoms, examination and test results when deciding how strongly GCA is suspected and how urgently treatment is needed.<\/p>\n<h2>Can You Have GCA Without a Headache?<\/h2>\n<p>Your GCA can occur without a headache. Your first warning sign may instead be sudden vision loss, jaw pain, general illness or symptoms of polymyalgia rheumatica.<\/p>\n<p>Your lack of headache does not rule out GCA. If you are over 50 and develop unexplained visual loss, you need urgent medical assessment.<\/p>\n<h2>What Happens During an Urgent Eye Assessment?<\/h2>\n<p>Your urgent eye assessment will include questions about your vision, headache, scalp tenderness, jaw pain and other GCA symptoms. Your ophthalmologist may check your visual acuity, pupils, colour vision and visual fields.<\/p>\n<p>Your optic nerves and retina will also be examined, often after your pupils are dilated. If GCA is suspected with sudden visual loss, you need same-day emergency assessment rather than waiting for a routine appointment.<\/p>\n<p><strong>Clinical Tip<\/strong><\/p>\n<p>If you are over 50 and develop sudden or temporary unexplained visual changes, seek urgent medical assessment rather than waiting to see whether your sight improves. The concern is even greater if you also have a new headache, scalp tenderness, jaw pain or other symptoms suggestive of GCA. Make a note of when the visual change started, which eye was affected and whether your sight returned to normal.<\/p>\n<p>Tell the medical team about any new headache, scalp tenderness, jaw pain when chewing, weight loss, fever or shoulder and hip stiffness. This information can help clinicians recognise the wider pattern of symptoms and assess how urgently you need treatment.<\/p>\n<h2>What Blood Tests Are Used When GCA Is Suspected?<\/h2>\n<p>Your blood tests may include CRP and ESR to check for inflammation. Your full blood count can also provide useful information, such as changes in your platelets or haemoglobin.<\/p>\n<p>Your blood results can support a GCA diagnosis but cannot confirm or rule it out alone. Your doctor will consider them alongside your symptoms, examination and other tests.<\/p>\n<p><strong>Evidence Note<\/strong><\/p>\n<p>Blood tests such as ESR and CRP can provide evidence of systemic inflammation when GCA is suspected, but no single blood test can confirm or exclude the diagnosis in every patient. Your doctor will interpret the results alongside your symptoms, examination findings and other investigations.<\/p>\n<p>Vascular ultrasound of the temporal and axillary arteries and temporal artery biopsy can provide important diagnostic information. However, when your vision is at risk, diagnostic investigations should not unnecessarily delay treatment with corticosteroids.<\/p>\n<h2>How Can Ultrasound Help Diagnose GCA?<\/h2>\n<p>Your vascular ultrasound can examine your temporal and axillary arteries for signs of inflammation, including a non-compressible halo caused by artery-wall swelling. Your scan is non-invasive and can often be arranged quickly.<\/p>\n<p>Your ultrasound result is considered alongside your symptoms and blood tests. If your vision is at risk, your treatment should not be delayed simply while waiting for the scan.<\/p>\n<p><strong>UK Guidance Note<\/strong><\/p>\n<p>UK guidance considers suspected giant cell arteritis with visual symptoms a medical priority because untreated disease can cause permanent sight loss. NHS guidance states that people with visual problems caused by suspected temporal arteritis should have a same-day appointment with an eye specialist.<\/p>\n<p>The British Society for Rheumatology describes GCA as a medical emergency and recommends urgent specialist assessment. When GCA is strongly suspected, high-dose glucocorticoid treatment should begin immediately rather than waiting for complete diagnostic confirmation. New transient or permanent visual loss or double vision requires same-day ophthalmology assessment.<\/p>\n<h2>What Is a Temporal Artery Biopsy?<\/h2>\n<p>Your temporal artery biopsy removes a small section of the artery near your temple under local anaesthetic. Your tissue is examined under a microscope for inflammation that can support a diagnosis of GCA.<\/p>\n<p>Your biopsy can occasionally miss inflamed areas, so a negative result does not always rule out GCA. Your treatment should not be delayed when your vision is at risk.<\/p>\n<h2>Why Are Steroids Started Before the Diagnosis Is Fully Confirmed?<\/h2>\n<p><img decoding=\"async\" class=\"alignnone wp-image-18734 size-full\" src=\"https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T135948.537.jpg\" alt=\"\" width=\"1100\" height=\"600\" srcset=\"https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T135948.537-200x109.jpg 200w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T135948.537-300x164.jpg 300w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T135948.537-400x218.jpg 400w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T135948.537-600x327.jpg 600w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T135948.537-768x419.jpg 768w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T135948.537-800x436.jpg 800w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T135948.537-1024x559.jpg 1024w, https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2026\/10\/JFAM-2026-10-09T135948.537.jpg 1100w\" sizes=\"(max-width: 1100px) 100vw, 1100px\" \/><\/p>\n<p>Your GCA treatment may need to start before all test results are available because delaying treatment can put your vision at risk. Your corticosteroids reduce arterial inflammation and help prevent further ischaemic damage.<\/p>\n<p>Your doctor will choose the appropriate steroid treatment based on your symptoms and visual involvement. Your ultrasound or biopsy can still help confirm the diagnosis, but you should not start or change steroids yourself.<\/p>\n<h2>Myth vs Fact<\/h2>\n<table style=\"height: 485px;\" width=\"1235\">\n<tbody>\n<tr>\n<td><strong>Myth<\/strong><\/td>\n<td><strong>Fact<\/strong><\/td>\n<\/tr>\n<tr>\n<td>GCA always causes a severe headache.<\/td>\n<td>GCA can occur without a typical headache. Visual loss, jaw claudication or other symptoms may sometimes be the first warning sign.<\/td>\n<\/tr>\n<tr>\n<td>If your vision returns to normal, the problem is no longer urgent.<\/td>\n<td>Temporary visual loss can be a warning of reduced blood flow to the eye and needs urgent assessment.<\/td>\n<\/tr>\n<tr>\n<td>GCA-related vision loss is always painful.<\/td>\n<td>GCA can cause sudden visual loss without significant eye pain.<\/td>\n<\/tr>\n<tr>\n<td>Only permanent vision loss is concerning.<\/td>\n<td>Temporary dimming, blurred vision or visual-field changes can also indicate sight-threatening disease.<\/td>\n<\/tr>\n<tr>\n<td>A normal ESR or CRP rules out GCA.<\/td>\n<td>Blood tests can support the assessment, but a normal result does not necessarily exclude GCA.<\/td>\n<\/tr>\n<tr>\n<td>You must wait for a biopsy before starting steroids.<\/td>\n<td>Treatment may need to start before diagnostic confirmation when GCA is strongly suspected because delaying treatment can put your vision at risk.<\/td>\n<\/tr>\n<tr>\n<td>A temporal artery ultrasound alone always confirms or excludes GCA.<\/td>\n<td>Ultrasound is an important diagnostic test, but its result needs to be interpreted alongside your symptoms, examination and other investigations.<\/td>\n<\/tr>\n<tr>\n<td>GCA only affects the arteries around your temples.<\/td>\n<td>GCA can affect other blood vessels, including vessels supplying the eyes and larger arteries.<\/td>\n<\/tr>\n<tr>\n<td>If only one eye is affected, the other eye is safe.<\/td>\n<td>GCA can threaten vision in the other eye if active disease remains untreated.<\/td>\n<\/tr>\n<tr>\n<td>Once your vision improves, you no longer need urgent assessment.<\/td>\n<td>Even if your sight returns, the underlying cause still needs urgent assessment because further permanent visual loss can occur.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Key Takeaways<\/h2>\n<ul>\n<li>Giant cell arteritis can cause sudden, temporary or permanent changes in your vision.<\/li>\n<li>Visual symptoms can occur with or without significant eye pain.<\/li>\n<li>Temporary loss or dimming of vision can be an important warning sign and should not be ignored.<\/li>\n<li>A new headache, scalp tenderness or jaw pain can increase concern for GCA, particularly if you are over 50.<\/li>\n<li>GCA can sometimes occur without a typical headache, so the absence of headache does not exclude the condition.<\/li>\n<li>Blood tests such as ESR and CRP can support assessment but do not diagnose GCA on their own.<\/li>\n<li>Vascular ultrasound of the temporal and axillary arteries and temporal artery biopsy may help confirm the diagnosis, depending on local pathways and specialist assessment.<\/li>\n<li>If visual symptoms are present, treatment with corticosteroids may need to begin before all test results are available.<\/li>\n<li>Same-day specialist assessment is important when GCA is suspected with visual symptoms.<\/li>\n<li>New or temporary vision loss should never be ignored because untreated GCA can cause permanent sight loss.<\/li>\n<\/ul>\n<h2>Frequently Asked Questions<\/h2>\n<ol>\n<li><strong> What is giant cell arteritis (GCA)?<br \/>\n<\/strong>Giant cell arteritis is inflammation of medium- and large-sized arteries, usually affecting people over 50. It can reduce blood flow to your optic nerve or retina and potentially cause permanent vision loss.<\/li>\n<li><strong> What visual symptoms can GCA cause?<br \/>\n<\/strong>You may develop sudden blurred, dimmed or reduced vision, temporary loss of sight, double vision or a shadow or curtain affecting part of your vision. These symptoms can sometimes occur without pain.<\/li>\n<li><strong> Why is temporary vision loss with suspected GCA an emergency?<br \/>\n<\/strong>Temporary loss or dimming of your vision can be an early warning that GCA is affecting blood flow to your eye. Although your sight may return, a later episode could cause permanent damage, so you need urgent assessment.<\/li>\n<li><strong> What other symptoms can suggest GCA?<br \/>\n<\/strong>You may develop a new headache, scalp tenderness or jaw pain when chewing. Other symptoms can include tiredness, fever, night sweats, reduced appetite, unexpected weight loss or symptoms of polymyalgia rheumatica.<\/li>\n<li><strong> Can you have GCA without a headache?<br \/>\n<\/strong>Yes. Your GCA can occur without a headache, and your first symptom may instead be visual loss, jaw pain, general illness or symptoms of polymyalgia rheumatica. A lack of headache does not rule out GCA.<\/li>\n<li><strong> How is giant cell arteritis investigated?<br \/>\n<\/strong>Your doctor may assess your vision and optic nerves and arrange blood tests such as CRP and ESR. Depending on your symptoms and local services, you may also have vascular ultrasound of your temporal and axillary arteries or a temporal artery biopsy.<\/li>\n<li><strong> Can an ultrasound diagnose GCA?<br \/>\n<\/strong>Your vascular ultrasound can look for signs of inflammation in the temporal and axillary arteries, including the halo sign. Your result is considered alongside your symptoms, blood tests and other clinical findings and may help support the diagnosis.<\/li>\n<li><strong> What is a temporal artery biopsy?<br \/>\n<\/strong>A temporal artery biopsy removes a small section of the artery near your temple for examination under a microscope. It can support the diagnosis, although a negative biopsy does not always rule out GCA.<\/li>\n<li><strong> Why are steroids started before all GCA test results are available?<br \/>\n<\/strong>Your treatment may need to start before the diagnosis is fully confirmed because delaying treatment can put your vision at risk. Corticosteroids reduce arterial inflammation and help prevent further sight-threatening damage.<\/li>\n<li><strong> When should you seek same-day assessment for suspected GCA?<br \/>\n<\/strong>If you are over 50 and develop new visual symptoms with a new headache, scalp tenderness or jaw pain, you should seek same-day medical assessment. Sudden or temporary vision loss requires urgent attention even when it is painless.<\/li>\n<\/ol>\n<h2>Final Thoughts: Giant Cell Arteritis Vision Warning Signs<\/h2>\n<p>Giant cell arteritis can threaten your eyesight quickly by reducing blood flow to the optic nerve or retina. If you are over 50 and develop sudden or temporary vision loss, blurred or dimmed vision, double vision or other visual changes alongside symptoms such as a new headache, scalp tenderness or jaw pain, you need same-day medical assessment.<\/p>\n<p>If you have sudden or temporary vision loss, new double vision or other visual symptoms that could be linked to GCA, seek same-day urgent medical or ophthalmic assessment rather than waiting for a routine appointment. For non-urgent eye health concerns, you can contact the <a href=\"https:\/\/www.eyecliniclondon.com\">Eye Clinic London<\/a> team for advice on appropriate next steps.<\/p>\n<h2>References:<\/h2>\n<ol>\n<li>Mackie, S.L., Dejaco, C., Appenzeller, S., Camellino, D., Duftner, C., Gonzalez-Chiappe, S. et al. (2020) \u2018British Society for Rheumatology guideline on diagnosis and treatment of giant cell arteritis\u2019, <em>Rheumatology<\/em>, 59(3), pp. e1\u2013e23. Available at: <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/31970405\/\">https:\/\/pubmed.ncbi.nlm.nih.gov\/31970405\/<\/a><\/li>\n<li>Ponte, C., Martins-Martinho, J. and Luqmani, R.A. (2020) \u2018Diagnosis of giant cell arteritis\u2019, <em>Rheumatology<\/em>, 59(Supplement_3), pp. iii5\u2013iii16. Available at: <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/32348512\/\">https:\/\/pubmed.ncbi.nlm.nih.gov\/32348512\/<\/a><\/li>\n<li>Piccus, R., Hansen, M.S., Hamann, S. and Mollan, S.P. (2022) \u2018An update on the clinical approach to giant cell arteritis\u2019, <em>Clinical Medicine<\/em>, 22(2), pp. 107\u2013111. Available at: <a href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC8966809\/\">https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC8966809\/<\/a><\/li>\n<li>H\u00e9ron, E., Sedira, N., Dahia, O. and Jamart, C. (2022) \u2018Ocular complications of giant cell arteritis: An acute therapeutic emergency\u2019, <em>Journal of Clinical Medicine<\/em>, 11(7), Article 1997. Available at: <a href=\"https:\/\/www.mdpi.com\/2077-0383\/11\/7\/1997\">https:\/\/www.mdpi.com\/2077-0383\/11\/7\/1997<\/a><\/li>\n<li>von der Emde, L., Petzinna, S.M., Herwig-Carl, M.C., Adamson, M.S., Bauer, C.J., Esser, J. et al. (2026) \u2018Advances in diagnosing and treating giant cell arteritis: New hope for arteritic anterior ischemic optic neuropathy\u2019, <em>Survey of Ophthalmology<\/em>, 71(2), pp. 483\u2013497. Available at: <a href=\"https:\/\/pubmed.ncbi.nlm.nih.gov\/40541842\/\">https:\/\/pubmed.ncbi.nlm.nih.gov\/40541842\/<\/a><\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>If you are over 50 and develop new visual symptoms with a new headache, scalp tenderness or jaw pain, you need same-day assessment for giant cell arteritis (GCA). GCA can threaten your vision quickly. Your doctor may use blood tests, ultrasound or biopsy, but treatment may need to start before all results are available. What Is Giant Cell Arteritis? Giant cell arteritis (GCA) is inflammation of medium- and large-sized arteries, usually affecting people over 50. It often involves the arteries<\/p>\n","protected":false},"author":33,"featured_media":18737,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-18730","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.4 (Yoast SEO v26.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Giant Cell Arteritis: Vision Warning Signs<\/title>\n<meta name=\"description\" content=\"Learn the vision warning signs of giant cell arteritis and why sudden visual symptoms with suspected GCA require urgent medical assessment.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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