Chronic or uncontrolled diabetes can affect the fine capillaries of our film layer -- the retina.   The high sugar in the blood will cause blockage and dropout of retinal vessels -  with resulting bleeding (hemorrhage), leakage (edema),  poor oxygen (ischemia) and possible scarring with detachment.

 

The effects of diabetes can be worsened if there is also a history of tobacco use and hypertension.    

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Unfortunately patients will often not see or feel the changes to the retina until the condition has advanced.   That is why it is important to have your retina evaluated.

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If diabetes has affected the retina,  then laser, injections or surgery may be necessary to stabilize and improve the damage.