PMC5854760_01
Fundus photograph, Farnsworth-Munsell 100 hue test, multifocal electroretinogram result, microperimetry and optical coherence tomography of both eyes of the patient
OC-08-05-g-001.jpg
PMC5854760_01_OC-08-05-g-001.jpg
F1
The Farnsworth-Munsell 100 hue test (Munsell Color Services Laboratory X-Rite Inc, Kentwood, MI, USA) showed a total error score (TES) of 144 and 172 in right and left eye, respectively, with a tritan pattern (Figure 1 (Fig. 1)). Spectral domain optical coherence tomography (OCT) (Cirrus OCT, Carl Zeiss Meditec, Dublin, CA, USA) of both eyes showed normal foveal architecture with foveal thickness of 172 and 175 microns in his right and left eye, respectively (Figure 1 (Fig. 1)).
Post-oxygenation therapy; Farnsworth-Munsell 100 hue test and microperimetry result
OC-08-05-g-002.jpg
PMC5854760_01_OC-08-05-g-002.jpg
F2
TES of 12 and 72 in his right and left eye, respectively, indicating a superior color vision discrimination in his right eye and an average color discrimination in his left eye. The mean retinal sensitivity with microperimetry was 13 dB and 11.6 dB in his right and left eye, respectively (Figure 2 (Fig. 2)).