How to Get cool blue eyes in Photoshop

The presenter beings the video by describing the screen cast program he is using to record the video. It is giving him some problems but he asks us to bear with him. The video then shows before and after images to demonstrate the effect. The effect is achieved by duplicating the eye color to another layer and then using layer blending options to achieve the desired brightness. The presenter has a website with many other Photoshop technique videos.