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.
Using the Windows 8 Software Development Kit. Microsoft supports several programming languages with its Windows 8 SDK. The developers we spoke to said that versatility makes developing Windows 8 apps a breeze, particularly if you have a background in developing for Windows or Web apps, or if you're familiar with C++ or C#.