 Here's a patient with neurofibromatosis and what we're going to demonstrate is transillumination of the lish nodules. Now we did see these on slit lamp examination, but they were small. Look how nicely they transilluminate. There, see them inferiorly. There's one at about 10 o'clock as well. I wonder whether or not the applicability of this in younger children who do not show lish nodules yet might be useful. For example, examining children of SIBS with neurofibromatosis, perhaps transillumination might show earlier lish nodules than one could see at the slit lamp. It's something to look into. Here's the other eye, and again you can see a few of these smaller lish nodules. Look at around four o'clock, seven o'clock. Here's just another view, and there they are. They show up very nicely against the surrounding iris stroma.