http://www.medilexicon.com/medicalnews.php?newsid=249290
This is an odd one - taking photo's to measure chol? Seems it's true...
The approach, developed by N.R. Shanker and his colleagues of the Sree Sastha Institute of Engineering and Technology, is based on a large database of cholesterol levels recorded by standard blood tests and matched with a photo of the hand of each patient. Cholesterol is seen in the crease of one's finger. The researchers created an image processing computer program that compares a patient image with thousands of entries in the database until one matches to a specific cholesterol reading.