The causes of macular edema are numerous and different causes may be inter-related. It is commonly associated with diabetes. Chronic or uncontrolled diabetes type 2 can affect peripheral blood vessels including those of the retina which may leak fluid, blood and occasionally fats into the retina causing it to swell.
Visual C++. Visual C++ is known as a native development language, as it talks directly to the hardware for the Windows Mobile device, with no intervening layers (unlike Visual C#, for example). Programming using C++ can be challenging, as it is not a trivial language to learn.
VBScript, or Visual Basic Scripting Edition, is a scripting language developed by Microsoft based on the original Visual Basic language. It is widely used on the Windows platform by system administrators. It can also be used for client-side scripting of web pages, and in this function it is similar to JavaScript.