ArticleBMC ophthalmology2026
Does axial length drive retinal displacement after repair of rhegmatogenous retinal detachment following phacoemulsification.
Article in BMC ophthalmology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeTo evaluate the incidence and direction of postoperative retinal displacement after pars plana vitrectomy(PPV) for macula-off rhegmatogenous retinal detachment(RRD) developing after phacoemulsification, and to assess associations with pre-phacoemulsification axial length(AL) and postoperative metamorphopsia.
methodsThis retrospective study included 32 eyes with post-phacoemulsification, macula-off pseudophakic RRD treated with primary 25-gauge PPV using either 14% perfluoropropane(C₃F₈) gas or 5,000-cSt silicone oil(SiO) tamponade.Tamponade was preferentially selected by break location: superior breaks received C₃F₈, whereas inferior breaks(4 to 8 o'clock) received SiO.Perfluorocarbon liquid-assisted drainage through the break was performed without retinotomy or internal limiting membrane peeling.Retinal displacement was evaluated on fundus autofluorescence obtained after tamponade clearance, specifically 1 month after SiO removal and 1 month after complete C₃F₈ gas resorption and was defined by retinal vessel printings ≥ 2 optic disc diameters.Metamorphopsia was quantified using M-CHARTS at months 1, 3, and 6.
resultsSiO was used in 19 eyes(59.4%) and C₃F₈ in 13(40.6%).Retinal displacement occurred in 7/19 eyes(36.8%) in the SiO group and 8/13(61.5%) in the C₃F₈ group(p = 0.169).Displacement direction differed significantly: SiO showed superior(21.1%) and inferior(15.8%) displacement, whereas C₃F₈ showed exclusively inferior displacement (61.5%)(p = 0.016).AL did not differ by displacement status within either group(SiO p = 0.922; C₃F₈ p = 0.428) and showed no correlation with M-CHARTS change scores at any interval (all p ≥ 0.283).M-CHARTS scores (vertical, horizontal, and mean) were comparable between groups at months 1, 3, and 6 (all p > 0.05).
conclusionIn macula-off RRD developing after phacoemulsification, postoperative retinal displacement was common and showed tamponade-specific directionality, uniformly inferior with C₃F₈ and more heterogeneous with SiO.Within this cohort's AL range, AL was not associated with displacement or metamorphopsia. CLINICAL
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