this invention. In the 1970s a new ophthalmoloscope was developed with a larger primary lens allowing a 5x larger field-of-view, called the "Panoptic" or "pan ophthalmoscope". Etymology and pronunciation The word ophthalmoscopy () uses combining forms of ophthalmo- + -scopy, yielding "viewing the eye". The word funduscopy () derives from fundus + -scopy, yielding "viewing the far inside". The idea that fundus can and should correspond to a combining form fundo- drives the formation of an alternate form, fundoscopy (fundo- + -scopy), which is the subject of a descriptive-versus-prescriptive difference in acceptance. Some dictionaries enter the fundo-'' form as a second-listed variant, but others do not enter it at all, and one prescribes its avoidance with a usage note. See also Charles Schepens Retinoscope Scanning laser ophthalmoscopy References External links Ophthalmoscopy on Medlineplus Ophthalmoscopy on WebMD Overview at bmjjournals.com Medlineplus about different types of ophthalmoscopy Diagnostic ophthalmology Medical equipment Ophthalmic equipment