Visualization of cystoid macular oedema using a scanning laser ophthalmoscope in the retro‐mode

Abstract

Scanning laser ophthalmoscope in the retro-mode can show each cystoid space located in any layer of the retina and allows us to detect the extent of cystoid macular oedema.

Scanning laser ophthalmoscopy in the retromode in diabetic macular oedema

“…The area under the curve, which is the probability of ranking a positive case higher than a negative one, is 0.89. Yamamoto et al (2010) documented cystoid macular oedema of different origin with RM-SLO. These authors found that whereas OCT (both time and spectral domain machines) detects oedema well in the fovea, the quantification of its extension, obtained from longitudinal sections alone, remains difficult (Yamamoto et al 2010).…”

“…Yamamoto et al (2010) documented cystoid macular oedema of different origin with RM-SLO. These authors found that whereas OCT (both time and spectral domain machines) detects oedema well in the fovea, the quantification of its extension, obtained from longitudinal sections alone, remains difficult (Yamamoto et al 2010). They also showed that even OCT en-face images, obtained by four different SD-OCTs, in eyes with cystoid macular oedema, detect a limited number of cystoid spaces.…”

“…Retromode Scanning Laser Ophthalmoscopy differs from the previously reported SLO used in the indirect (dark field) mode, with an infrared laser, because both a central stop and a full ring aperture were used. Using this system, a relatively large amount of multiply scattered light is collected (Elsner et al 1992Remky et al 1999;Yamamoto et al 2010). In contrast, RM-SLO uses a modified central stop.…”

“…Although OCT has added relevant information in quantitative and qualitative evaluation of DME, it fails to give immediate information about the extension of oedema (Ohkoshi et al 2010 (Browning et al 2008). Scanning laser ophthalmoscopy in the retromode [Retromode Scanning Laser Ophthalmoscopy (RM-SLO)] is a non-invasive imaging tool, which enables an easy visualization of deep retinal structures by using an infrared laser light (Yamamoto et al 2008(Yamamoto et al , 2010Ohkoshi et al 2010;Acton et al 2011). It uses a central stop, which blocks directly reflected light, while collecting laterally oriented scattered light.…”

“…As a consequence, pseudo-3-dimensional images of the retina are obtained. Retromode Scanning Laser Ophthalmoscopy has been used for the visualization of cystoid macular oedema of different origin, and drusen in age-related maculopathy (Yamamoto et al 2008(Yamamoto et al , 2010Ohkoshi et al 2010;Acton et al 2011). In DME, it has been recently used for the visualization of subthreshold micropulse diode laser treatment spots (Ohkoshi et al 2010).…”