What does SLO stand for in retinal imaging?

What does SLO stand for in retinal imaging?

• A. Scanning Light Ophthalmoscope
• B. Scanning Laser Ophthalmic
• C. Scanning Laser Ophthalmoscope
• D. Scanning Light Ophthalmology

Answer: (C)

SLO stands for Scanning Laser Ophthalmoscope. This device images the retina by directing a focused laser beam across the fundus in a raster scan and detecting the reflected light through a confocal pinhole. The confocal setup rejects out-of-focus light, giving high-contrast, sharp en-face images and good depth discrimination. Using a laser (rather than broad white-light) also allows imaging at specific wavelengths suited to retinal tissue and fluorophores. The term refers to the instrument itself, not a general ophthalmic term, so the correct wording is Scanning Laser Ophthalmoscope.

SLO stands for Scanning Laser Ophthalmoscope. This device images the retina by directing a focused laser beam across the fundus in a raster scan and detecting the reflected light through a confocal pinhole. The confocal setup rejects out-of-focus light, giving high-contrast, sharp en-face images and good depth discrimination. Using a laser (rather than broad white-light) also allows imaging at specific wavelengths suited to retinal tissue and fluorophores. The term refers to the instrument itself, not a general ophthalmic term, so the correct wording is Scanning Laser Ophthalmoscope.