Well, generally speaking, there are a number of medical conditions which can cause scar tissue to form in an eye. Scar tissue, which may be attached to part of the eye or floating freely, will cause problems ranging from causing you to see dark spots in your vision to causing complete blindness. In common, you can have vitrectomy to remove it. And first, you should know that this type of surgery involves the physical insertion of microsurgical tools to peel scar tissue off the light sensitive parts of the eye. And of course, by doing that, it can be very successful. But on the other hand, some side effects may be possible too. For example, some patents may suffer retinal detachment after surgery. So just be careful about it.