Welch Allyn Panoptic Ophthalmoscope for Quick Diagnosis Provides a panoramic view of the fundus five times larger than standard ophthalmoscopes, which makes conditions such as hypertension, diabetic retinopathy and papilledema much easier to identify. Features Fast, easy entry into undilated pupils 5x larger view of the fundus vs. standard ophthalmoscopes in an undilated eye 25º vs. the standard 5º field of view Greater working distance improves comfort for both practitioner and patient Helps detect corneal abrasions with cobalt blue filter and corneal viewing lens Patented Glare Extinguishment System prevents interference from unwanted glare and reflections Halogen HPX™ lamp provides bright, white light Compatible with all existing Welch Allyn 3.5 V power sources or Heine “TL” handles