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Diabetic Retinopathy Is a Disorder of the Retinal Blood Common Cause of Poor Vision in Children

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Diabetic Retinopathy Is a Disorder of the Retinal Blood Common Cause of Poor Vision in Children WHAT IS DIABETIC CAN IT BE PREVENTED? AMBLYOPIA RETINOPATHY? • Regular eye checks, including a retinal Amblyopia, commonly known as lazy eye, is the most examination, are by far the most important Diabetic retinopathy is a disorder of the retinal blood common cause of poor vision in children. preventative measure for avoiding diabetic vision vessels which affects patients with diabetes. The Amblyopia occurs because the part of the brain that loss. longer you have diabetes the more likely you are to deals with vision for that eye has failed to develop • Close monitoring of your diabetes by your family have diabetic retinopathy. To reduce your risk of normally. doctor is also essential. diabetic retinopathy the best thing to do is maintain • Good control of blood sugars and hypertension will tight control of your blood sugars and have a low The vision centre in the brain is constantly developing also help to reduce the risk of retinopathy. HbA1c (long term glucose control indicator). during the first 7-8 years of a child’s life. If the vision is • Smoking increases the risk of serious eye disease. interfered with in any way, the brain will start to prefer one eye over the other, and the vision in the other Diabetic retinopathy can often become worse during WHOeye will suffer. GETS To reverse IT? the process and correct pregnancy. If you are pregnant, or are thinking of the vision in the poor eye, it is necessary to make the becoming pregnant, it is a good idea to talk to your eye Diabetic retinopathy may be mild, moderate or severe. brain use this eye again. specialist about what extra steps you will need to take For many people, even severe cases, there are no to monitor and manage your diabetic retinopathy. symptoms. For this reason, if you have diabetes it is important to have your eyes checked regularly to makeWHAT sure there CAUSES is no vision threateningAMBLYOPIA? diabetic DIABETIC retinopathy. RETINOPATHY Diabetic1. The most retinopathy common that cause affects of amblyopia the vision is eitherpoor due focusing to swelling due to: of the central retina (called macula Diabetic retinopathy is a disorder of oedema),• Hyperopia which (far-sightedness). causes central blur. Or due to abnormal• Myopia blood (near-sightedness). vessels growing and bleeding causing retinal blood vessels which is commonly large floaters, scarring or loss of vision within the eye. obseved in patients with diabetes. • Astigmatism (which is an imperfection in the The maculacurvature oedema of the iseye’s usually cornea) diagnosed that can with distort a scan calledvision an OCT for both which near shows and whether far objects. there is any retinal swelling or not. This illustration is a guide only; individual symptoms may vary. 2. Strabismus is sometimes a cause of amblyopia. SymptomsCommonly of known severe as diabetic a squint retinopathy or turning-eye, include blurry vision,strabismus vision isloss where or extensive the eyes floaters.do not look in the same direction. If, for example, one eye in particular turns NORMAL VISION SIGNSin, it is likely ANDthis eye willSYMPTOMS become amblyopic. Some3. Another common cause symptoms of amblyopia of diabetic could beretinopathy a disruption are: •to theBlurred passage vision of (oftenlight into linked the eye,to blood such sugar as: levels). •• FloatersA scar on (black the cornea or grey (the spots surface drifting of acrossthe eye), your • vision).A cataract (an opaque lens in the eye). •• FlashesA very droopy (sudden eyelid. flashes of light or lightning). • Sudden loss of vision. DIABETIC RETINOPATHY VISION CAN IT BE TREATED? TREATMENTS Diabetic retinopathy that affects the central retina with VITRECTOMY swelling (macula oedema) is usually treated with a drug that is injected into the eye, called avastin. If there is extensive blood or scarring within the eye then a vitrectomy may be required. This is usually Abnormal new vessels that grow in diabetic retinopathy carried out under a local anaesthetic. In a vitrectomy are usually controlled with laser. the gel within the eye and the blood is removed and 8 St Marks Rd, Remuera replaced by saline fluid and then, with time, the natural Abnormal bleeding into the eye or scarring on the fluid from within the eye. Scarring on the retina is also retina is managed with surgery. removed and further laser treatment is applied. In some cases an avastin injection is also given to help In every case, early detection makes treatment options stop further bleeding or macular oedema. easier and more successful. Managing your diabetes and blood sugars well in the long term helps reduce the risk of vision loss from diabetic retinopathy. Oasis Surgical & Dry Eye Clinic, Vitrectomy 2 MacMurray Rd, Remuera TREATMENTS INJECTIONS Macula oedema is most commonly treated with an injection of a drug known as an Anti-VEGF agent into the eye. The most commonly used of these drugs is called Avastin. It stops the abnormal blood vessels 3 Fred Thomas Dr, Takapuna from leaking and bleeding and reduces the swelling of the retina. It is usually given in the clinic using drops to numb the RECOVERY eye. Often multiple injections are required, and they are usually given 1-2 months apart. Ongoing follow The recovery period for a vitrectomy is 2-4 weeks. The up appointments and monitoring with OCT scans are eye may be a little scratchy and uncomfortable for the required. first week. Sometimes there is further bleeding after the surgery but this usually resolves without further Ormiston Medical Clinic, 221 Ormiston Rd LASER treatment. Occasionally a second surgery is required if further bleeding persists. Abnormal new vessels growing within the eye are treated with laser. This is performed in the clinic at the laser machine using anaesthetic drops. The laser may take 2-3 sessions of 20-30 minutes to complete but once the laser is complete, in most cases, further Phone 09 529 2480 or 0800 25 53 93 treatment for the abnormal vessels is unnecessary, Email: [email protected] although sometimes people still require treatment for www.aucklandeye.co.nz macular oedema with injections (as above)..
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