[Quantification of metamorphopsia in the course of branch retinal vein occlusion with M-CHARTS].
OBJECTIVE
To evaluate visual function disorder in patients with branch retinal vein occlusion by quantifying the degree of metamorphopsia.


METHODS
prospective interventional case series.


METHODS
The subjects were 12 patients(12 eyes) whose fovea was involved with branch retinal vein occlusion within a month after noticing their symptoms. The best-corrected visual acuity, and vertical and horizontal metamorphopsia scores were obtained within one month, and at 3 months and 6 months after the onset of symptoms regardless of therapy. The metamorphopsia scores were measured with M-CHARTS.


RESULTS
Although the average best-corrected visual acuity at 6 months was significantly better than that within a month of noticing symptoms, the average metamorphopsia scores did not improve after 6 months, and were not related to the average best-corrected visual acuity in either vertical or horizontal lines.


CONCLUSIONS
The degree of metamorphopsia measured with M-CHARTS is an important parameter in addition to the best-corrected visual acuity for evaluating visual function in patients with branch retinal vein occlusion.
Nakagawa
Tomoya
T
Department of Ophthalmology, Osaka University Medical School, Japan. a193007@ych.or.jp
Harino
Seiyo
S
Iwahashi
Yoshiko
Y
D000328:Adult; D000368:Aged; D003941:Diagnostic Techniques, Ophthalmological; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012170:Retinal Vein Occlusion / Q000175:diagnosis* / Q000503:physiopathology*; D013997:Time Factors; D014785:Vision, Ocular; D014792:Visual Acuity