[{"data":1,"prerenderedAt":365},["ShallowReactive",2],{"microcopies":3,"page-data-/eye-health/tunnel-vision":9},{"of":4,"jumpToSection":5,"home":6,"availableAt":7,"accessedUpdated":8},"of","Jump to section","Home","Available at","Accessed",{"queryData":10,"breadcrumbTrail":364},{"contentPage":11},{"entryTitle":12,"pageTitle":13,"seoMetaData":14,"topSection":20,"bottomSection":29,"anchors":43,"mainSectionCollection":76},"en-GB - Eye Health - Tunnel Vision - Content Page","Tunnel vision: Symptoms, Causes & Treatment",{"metaDescription":15,"indexed":16,"follow":16,"metaKeywords":17,"updatedForProjectAlphabet":19},"Tunnel Vision occurs due to a loss in peripheral vision and can be caused by a range of other eye health problems including glaucoma. Find out more.",true,[18],"tunnel vision",false,{"__typename":21,"sys":22,"button":24,"title":25,"subtitle":26,"theme":27,"heroHeightVersion":28},"HeroBanner",{"id":23},"XuMOgPHznNQ1PTggYsCco",null,"Tunnel vision","A loss or worsening of your peripheral vision that can make it seem as if you’re looking through a tunnel","Ellipse","Condensed",{"__typename":30,"sys":31,"title":33,"body":34,"buttonsCollection":35},"FullWidthBannerFooter",{"id":32},"fkTTrqXbtBwlZYYOQQpni","We’re here to help","If you’ve noticed a change in your vision, or have experienced any symptoms mentioned above, it’s worth booking an appointment with one of our optometrists.",{"items":36},[37,40],{"linkText":38,"linkUrl":39,"openLinkInANewBrowserTab":19},"Book an appointment","/book/location",{"linkText":41,"linkUrl":42,"openLinkInANewBrowserTab":19},"See more eye conditions","/eye-health",{"anchorLinksCollection":44},{"items":45},[46,51,56,61,66,71],{"anchorLabel":47,"includeLinkInPageNav":19,"anchorTarget":48},"Summary",{"sys":49},{"id":50},"4oqC3eR95n7KcuMhfiQ1zi",{"anchorLabel":52,"includeLinkInPageNav":16,"anchorTarget":53},"Symptoms",{"sys":54},{"id":55},"7671sWnnMfrM7opvINBiAP",{"anchorLabel":57,"includeLinkInPageNav":16,"anchorTarget":58},"Causes",{"sys":59},{"id":60},"sc7od6gTE60cBJFVPnWrK",{"anchorLabel":62,"includeLinkInPageNav":16,"anchorTarget":63},"Diagnosis",{"sys":64},{"id":65},"5eVwuqCUtWEd5Y1fkor7gZ",{"anchorLabel":67,"includeLinkInPageNav":16,"anchorTarget":68},"Treatment",{"sys":69},{"id":70},"53spFXKojOr31OMmTcJiAs",{"anchorLabel":72,"includeLinkInPageNav":16,"anchorTarget":73},"Risks",{"sys":74},{"id":75},"1y4xftybiKy0zHXVlcBRrA",{"items":77},[78,84,113,24,239,269,306,24,329,337],{"__typename":47,"sys":79,"linkEntries":80,"title":82,"body":83,"leftAligned":24},{"id":50},{"items":81},[],"What is tunnel vision?","Peripheral vision is the part of your vision that lies beyond your direct line of sight – it’s what we see at the side or edge of our vision. Tunnel vision means the worsening or loss of this peripheral vision and can be temporary, or permanent.",{"__typename":85,"sys":86,"theme":87,"genericTextComponent":88},"ContentTypeRichText",{"id":55},"Cool Blue",{"json":89,"links":110},{"data":90,"content":91,"nodeType":109},{},[92,101],{"data":93,"content":94,"nodeType":100},{},[95],{"data":96,"marks":97,"value":98,"nodeType":99},{},[],"Signs and symptoms of tunnel vision","text","heading-2",{"data":102,"content":103,"nodeType":108},{},[104],{"data":105,"marks":106,"value":107,"nodeType":99},{},[],"Without your side vision, it will look as if you’re looking through a tunnel. So you would only be able to see things in a small circle directly in front of you.","paragraph","document",{"entries":111},{"block":112},[],{"__typename":85,"sys":114,"theme":115,"genericTextComponent":116},{"id":60},"Mono White",{"json":117,"links":236},{"data":118,"content":119,"nodeType":109},{},[120,127,134,142,162,169,176,183,201,208,215,222,229],{"data":121,"content":122,"nodeType":100},{},[123],{"data":124,"marks":125,"value":126,"nodeType":99},{},[],"Tunnel vision causes",{"data":128,"content":129,"nodeType":108},{},[130],{"data":131,"marks":132,"value":133,"nodeType":99},{},[],"There are many possible causes of tunnel vision, and this list is not conclusive.",{"data":135,"content":136,"nodeType":141},{},[137],{"data":138,"marks":139,"value":140,"nodeType":99},{},[],"Retina damage","heading-3",{"data":143,"content":144,"nodeType":108},{},[145,149,158],{"data":146,"marks":147,"value":148,"nodeType":99},{},[],"The outer part of the retina forms our peripheral vision – any damage to this part of the retina would cause a loss in that area of vision. ",{"data":150,"content":152,"nodeType":157},{"uri":151},"/eye-health/retinitis-pigmentosa",[153],{"data":154,"marks":155,"value":156,"nodeType":99},{},[],"Retinitis pigmentosa","hyperlink",{"data":159,"marks":160,"value":161,"nodeType":99},{},[]," is a very rare genetic condition known to cause tunnel vision.",{"data":163,"content":164,"nodeType":141},{},[165],{"data":166,"marks":167,"value":168,"nodeType":99},{},[],"Optic nerve damage",{"data":170,"content":171,"nodeType":108},{},[172],{"data":173,"marks":174,"value":175,"nodeType":99},{},[],"The optic nerve is responsible for sending signals from the eyes onto the brain to produce the images we see. Tunnel vision can happen when the optic nerve is damaged.",{"data":177,"content":178,"nodeType":141},{},[179],{"data":180,"marks":181,"value":182,"nodeType":99},{},[],"Glaucoma",{"data":184,"content":185,"nodeType":108},{},[186,190,197],{"data":187,"marks":188,"value":189,"nodeType":99},{},[],"",{"data":191,"content":193,"nodeType":157},{"uri":192},"/eye-health/glaucoma",[194],{"data":195,"marks":196,"value":182,"nodeType":99},{},[],{"data":198,"marks":199,"value":200,"nodeType":99},{},[]," is a common eye disease that affects the optic nerve, and its symptoms include a slow deterioration in peripheral vision. Left untreated, it can lead to tunnel vision or even sight loss – that’s why regular eye tests are so important.",{"data":202,"content":203,"nodeType":141},{},[204],{"data":205,"marks":206,"value":207,"nodeType":99},{},[],"Damage to the brain",{"data":209,"content":210,"nodeType":108},{},[211],{"data":212,"marks":213,"value":214,"nodeType":99},{},[],"Things like blood loss on the brain or a stroke could also cause a loss of peripheral vision.",{"data":216,"content":217,"nodeType":141},{},[218],{"data":219,"marks":220,"value":221,"nodeType":99},{},[],"Temporary tunnel vision",{"data":223,"content":224,"nodeType":108},{},[225],{"data":226,"marks":227,"value":228,"nodeType":99},{},[],"Tunnel vision can happen temporarily in cases like extreme panic, stress or anger, when the body will produce high levels of adrenaline. Usually, normal vision will be restored without needing any treatment. Use of alcohol and drugs have also shown to affect peripheral vision.",{"data":230,"content":231,"nodeType":108},{},[232],{"data":233,"marks":234,"value":235,"nodeType":99},{},[],"If you do experience a loss of peripheral vision, you should go to your GP or local casualty department as soon as possible.",{"entries":237},{"block":238},[],{"__typename":85,"sys":240,"theme":115,"genericTextComponent":241},{"id":65},{"json":242,"links":266},{"data":243,"content":244,"nodeType":109},{},[245,252,259],{"data":246,"content":247,"nodeType":100},{},[248],{"data":249,"marks":250,"value":251,"nodeType":99},{},[],"How tunnel vision is diagnosed",{"data":253,"content":254,"nodeType":108},{},[255],{"data":256,"marks":257,"value":258,"nodeType":99},{},[],"Tunnel vision can be diagnosed through a visual field test, which is included as part of your normal eye test. This will check for any blank spots in the vision by testing the area of the retina which sees our peripheral vision.",{"data":260,"content":261,"nodeType":108},{},[262],{"data":263,"marks":264,"value":265,"nodeType":99},{},[],"You’ll be asked to look at a small central light on a blank screen with one eye at a time. A series of lights will briefly flash around the screen and you’ll be asked to just press a button every time you see a flash. Each part of the retina is tested to give us an idea of how normal your peripheral vision is.",{"entries":267},{"block":268},[],{"__typename":85,"sys":270,"theme":87,"genericTextComponent":271},{"id":70},{"json":272,"links":303},{"data":273,"content":274,"nodeType":109},{},[275,282,289,296],{"data":276,"content":277,"nodeType":100},{},[278],{"data":279,"marks":280,"value":281,"nodeType":99},{},[],"Treatments for tunnel vision",{"data":283,"content":284,"nodeType":108},{},[285],{"data":286,"marks":287,"value":288,"nodeType":99},{},[],"Treating tunnel vision will depend on its underlying cause. Your optician or GP will be able to determine the cause and recommend the best treatment for you.",{"data":290,"content":291,"nodeType":108},{},[292],{"data":293,"marks":294,"value":295,"nodeType":99},{},[],"If you think you have a loss of peripheral vision, it’s important you get it checked by your optician. If you experience sudden peripheral vision loss, you should seek advice immediately from your optician, GP or local casualty department.",{"data":297,"content":298,"nodeType":108},{},[299],{"data":300,"marks":301,"value":302,"nodeType":99},{},[],"Try to go with someone to help to guide you and make sure to take extra care when crossing roads.",{"entries":304},{"block":305},[],{"__typename":85,"sys":307,"theme":115,"genericTextComponent":308},{"id":75},{"json":309,"links":326},{"data":310,"content":311,"nodeType":109},{},[312,319],{"data":313,"content":314,"nodeType":100},{},[315],{"data":316,"marks":317,"value":318,"nodeType":99},{},[],"Risks of tunnel vision",{"data":320,"content":321,"nodeType":108},{},[322],{"data":323,"marks":324,"value":325,"nodeType":99},{},[],"Tunnel vision can be particularly dangerous for things like driving or cycling, as without having your full peripheral vision, you won’t be able to recognise potential dangers unless they are directly in front of you. So if you’re experiencing any symptoms of tunnel vision, it’s important you get it checked by your GP or optician as soon as possible.",{"entries":327},{"block":328},[],{"__typename":330,"sys":331,"buttonCollection":333,"title":335,"body":336,"theme":27},"FullWidthBannerSimple",{"id":332},"57EOL7e98qyCCFr9kjw1eZ",{"items":334},[],"Did you know?","Tunnel vision can stem from various causes and often is temporary. If prolonged or concerning, see your optician or GP immediately.",{"__typename":338,"sys":339,"title":341,"body":24,"backgroundTheme":24,"actionCardEntriesCollection":342},"ActionCardBanner",{"id":340},"keqiwluN3uCiUw39HKjMx","Find out more",{"items":343},[344,351,357],{"title":345,"body":346,"imageAltText":347,"linkText":348,"linkUrl":42,"openLinkInANewBrowserTab":19,"image":349},"All eye conditions","Read more information about all eye conditions.","Women using a slit lamp","View all",{"url":350},"https://images.ctfassets.net/nidbvn21pqyi/4cwFJgHB9BHy1B690ebBQ0/6f32628629e03d3b3de47e8b372e5b29/142601_CLINICAL_SHOOT_1_2021_SHOT_09_SLIT_LAMP_155_RGB-150DPI.jpg",{"title":352,"body":353,"imageAltText":354,"linkText":352,"linkUrl":39,"openLinkInANewBrowserTab":19,"image":355},"Book an eye test","Book an appointment at your local Specsavers store.","Man having an OCT scan",{"url":356},"https://images.ctfassets.net/nidbvn21pqyi/5T3QokGERAThYXwgmSXxFq/e216fd183e786d1d3f6018ba20a07002/142601_CLINICAL_SHOOT_1_2021_SHOT_01_OCT_052_FUNDUS_Screen_RGB-150DPI.jpg",{"title":358,"body":359,"imageAltText":360,"linkText":341,"linkUrl":361,"openLinkInANewBrowserTab":19,"image":362},"All about eye tests","Everything you need to know about getting your eyes tested.","Women using a phoropter","/eye-test",{"url":363},"https://images.ctfassets.net/nidbvn21pqyi/5zSdFZFmwKx4bFKCWIm9A9/5f3b5416a72f9709ae060728b2aa77ab/142601_CLINICAL_SHOOT_1_2021_SHOT_06_PHOROPTER_FEMALE_042_RGB-150DPI.jpg",[24,24],1781528965303]