Hi Shorav,
You can feed the bounding box of the detected eyes to any one of the feature detectors in the Computer Vision System Toolbox. Here is an example of how to do this:
%Read the input image
I = imread('extract1.png');
%To detect Eyes
EyeDetect = vision.CascadeObjectDetector('EyePairBig');
BB=step(EyeDetect,I);
%Plot result
figure
imshow(I);
hold on;
rectangle('Position',BB,'LineWidth',4,'LineStyle','-','EdgeColor','b');
