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Autofluorescence helps gauge retinal displacement before, after vitrectomy for ERM
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Fundus autofluorescence proved useful in showing retinal movement before and after vitrectomy for idiopathic epiretinal membrane, according to a study.
Investigators prospectively studied 56 eyes of 53 patients who had idiopathic epiretinal membrane (ERM) and underwent vitrectomy with ERM removal and internal limiting membrane peeling. They used fundus autofluorescence to examine retinal movement in the posterior fundus before and after surgery.
LogMAR best corrected visual acuity, fundus photography, autofluorescence images and central retinal thickness measurements were assessed preoperatively and at 1, 3, 6 and 12 months postoperatively.
Hyperautofluorescent lines denoting retinal displacement were identified in 37 eyes (66.1%) before surgery. Retinal displacement was significantly more common in patients who had subjective symptoms for 3 years or less.
Hyperautofluorescent lines disappeared in 23 of 37 eyes (62.2%) within 1 month after surgery. The disappearance of lines was attributed to retinal vessels returning to their original position.
BCVA improved significantly in patients with indistinct hyperautofluorescent lines at 1 month postoperatively (P < .05).
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