I am a 28yr old male. I do not have history of diabetes or cardiovascular problem. I can see blurry,semi transparent circle at the central vision of my right eye.I just noticed it two days ago but I dont really know when did it actually start because it is really not noticable while using both of my eyes. I could not read really small texts when I try to use my right eye.The texts become blurry within the range of that floating circle . I also find it hard to see a persons face or a wall clock in detail in a semi-dark area but I can easily see it using my left eye. I suspect that this could be due to my exercise routine (strenous planking,shadow boxing and running ) and drinking too much coffee. I dont smoke or drink alcohol. What could it be?