Patent ID: 11918290
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A  C | IPC A  C

Claim 0:
1. A method of identifying Lisch nodules and obtaining Lisch nodule information from an eye of a subject, the method comprising:
placing a light seal of a housing having an interior chamber against the subject's face to block ambient light from the interior chamber;
illuminating from within the interior chamber an iris of the eye with visible light at an angle between 15° and 30°;
obtaining a reflection of the visible light with a photodetector;
illuminating from within the interior chamber the iris with infrared light at an angle between 15° and 30°;
obtaining a reflection of the infrared light; and
identifying that a structure on the iris is a Lisch nodule from the reflection of the visible light and the reflection of the infrared light by analyzing a shadow cast by the structure and color and location of the structure.