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We have been asked to provide information relating to Cystoid Macular Edema.
Cystoid macular edema or CME is a painless disorder which affects the central retina or macula. When this condition is present, multiple cyst-like (cystoid) areas of fluid appear in the macula and cause retinal swelling or edema.
There are many causes associated with cystoid macular edema. Some of the causes are listed below:
Eye surgery, cataract surgery or a repaired detached retina
Age-related macular degeneration
Blockage in the small arteries or veins of the retina.
Inflammation of the eye
Eye injury
Certain medications have side effects that can cause swelling
One of the first symptoms is blurry or wavy vision in the central part of your vision. This is also a symptom of macular degeneration, cataracts, glaucoma and diabetic retinopathy. Colors may appear differently in the affected eye.
Only your eye care professional can diagnosis the true cause of your eye condition. They will do a dilated eye exam and look at the back of the retina and macular through a specialized instrument. They may also order the following tests: Fluorescein angiography this will show the areas of where the fluid has collected. Optical coherence tomography (OCT) scan that would provide a cross-sectional view of the retina.
 Once the eye care professional has all the results of the tests, he/she will recommend treatment. Treatments can vary.  
 If this condition is caused by a medical condition such as diabetes or a side effect of medication, it will need to be addressed first with your medical provider.
 If it is a result of eye injury, eye surgery, repaired detached retina or cataract surgery the doctor may prescribe an anti-inflammatory medication which could be in any of the following forms; pills,  eye drops or a steroid injection in the eye or around the eye.
 Please continue to use your medication and see your eye care professional as recommended even if you don’t think the treatments are working. The treatments often work slowly at first but with  continued use you will notice that your vision has returned.
“This is for informational purposes only. Only your eye care professional can diagnosis a problem. If you are experiencing any vision problems please call your eye professional immediately”-  MDA
Sources: NEI, Cleveland Clinic and Kellogg Eye Center