John Hill , Feb 16, 2012; 03:10 a.m.
Karen, I hope someone comes up with a camera or flash problem.
You may want to get a second opinion from another doctor or double check with the doctor that you already saw, if it is not equipment related.
I did a quick google and found this.
One early warning sign of Coats’ disease is yellow-eye in flash photography. Just as the red-eye effect is caused by a reflection off blood vessels in the back of a normal eye, an eye affected by Coats’ will glow yellow in photographs as light reflects off cholesterol deposits. Children with yellow-eye in photographs are typically advised to immediately seek evaluation from an ophthalmologist, preferably a vitreo-retinal specialist. Coats’ disease itself is painless. Pain may occur if fluid is unable to drain from the eye properly, causing the internal pressure to swell, resulting in painful glaucoma. MORE- http://en.wikipedia.org/wiki/Coats%27_disease