Just had an angiography of the eyes with contrast as a followup to the vitreous separation and a cotton wool patch was discovered on the left eye. Health is good - low blood pressure, no diabetes, low cholesterol, etc. Doc assured me it will go away but was concerned with what may have caused it. I am on HRT and he said this could be the culprit. Ae there any symptoms with these patches? That eye is feeling just a bit off.