PDF(Pubmed)
Abstract：
BACKGROUND: Demarcation line in a rhegmatogenous retinal detachment (RD) is a classic finding noted in chronic cases. In this case report, we describe a case of evolution of post-operative demarcation line after pneumatic retinopexy (PnR) in a subtotal rhegmatogenous RD.
METHODS: A 31-year-old male diagnosed with acute, subtotal, macula-off rhegmatogenous RD in the left eye of 15-day duration underwent PnR on the same day. His presenting visual acuity was 6/48 in the left eye. Transconjunctival cryopexy was performed to the retinal break at the same sitting and 0.5 cc of 100% perfluoroproprane (C3F8) gas was injected in the vitreous cavity and right lateral position was advised to the patient.
RESULTS: A pigmentary demarcation line was noted extending the nasal part of the macula along the most dependent part of the detachment on the immediate post-operative day and was more obviously visible on the 2nd and then on the 11th post-operative day. The visual acuity at the last follow-up visit improved to 6/18. Successful reattachment of the retina was noted on the last follow-up visit.
CONCLUSIONS: Post-operative demarcation lines after RD surgery could develop due to subretinal migration of pigments and along the most-dependent part depending upon post-operative positioning of the patient. Careful post-operative positioning, particularly in macula splitting RDs could be important to avoid pigment accumulation along the foveal area.
METHODS: A 31-year-old male diagnosed with acute, subtotal, macula-off rhegmatogenous RD in the left eye of 15-day duration underwent PnR on the same day. His presenting visual acuity was 6/48 in the left eye. Transconjunctival cryopexy was performed to the retinal break at the same sitting and 0.5 cc of 100% perfluoroproprane (C3F8) gas was injected in the vitreous cavity and right lateral position was advised to the patient.
RESULTS: A pigmentary demarcation line was noted extending the nasal part of the macula along the most dependent part of the detachment on the immediate post-operative day and was more obviously visible on the 2nd and then on the 11th post-operative day. The visual acuity at the last follow-up visit improved to 6/18. Successful reattachment of the retina was noted on the last follow-up visit.
CONCLUSIONS: Post-operative demarcation lines after RD surgery could develop due to subretinal migration of pigments and along the most-dependent part depending upon post-operative positioning of the patient. Careful post-operative positioning, particularly in macula splitting RDs could be important to avoid pigment accumulation along the foveal area.
摘要：
背景：孔源性视网膜脱离（RD）的分界线是慢性病例的经典发现。在这个案例报告中,我们描述了在次全流源性RD中进行气动视网膜固定术（PnR）后手术后分界线演变的情况。
方法：一名31岁男性，诊断为急性，小计,15天的左眼黄斑裂孔性RD在同一天接受了PnR。他的左眼视力为6/48。在相同的坐姿下对视网膜破裂进行结膜冷冻术，并在玻璃体腔中注入0.5cc100％全氟丙烷（C3F8）气体，并建议患者右侧卧位。
结果：注意到色素性分界线在术后当天沿脱离的最依赖部分延伸黄斑的鼻部，在术后第2天和第11天更明显可见。最后一次随访时的视力改善至6/18。在最后一次随访中注意到视网膜的成功再附着。
结论：RD手术后的分界线可能是由于色素的视网膜下迁移以及取决于患者术后位置的最依赖部分而形成的。术后小心定位,特别是在黄斑裂开的RD中，对于避免色素沿中央凹区域的积累可能很重要。
方法：一名31岁男性，诊断为急性，小计,15天的左眼黄斑裂孔性RD在同一天接受了PnR。他的左眼视力为6/48。在相同的坐姿下对视网膜破裂进行结膜冷冻术，并在玻璃体腔中注入0.5cc100％全氟丙烷（C3F8）气体，并建议患者右侧卧位。
结果：注意到色素性分界线在术后当天沿脱离的最依赖部分延伸黄斑的鼻部，在术后第2天和第11天更明显可见。最后一次随访时的视力改善至6/18。在最后一次随访中注意到视网膜的成功再附着。
结论：RD手术后的分界线可能是由于色素的视网膜下迁移以及取决于患者术后位置的最依赖部分而形成的。术后小心定位,特别是在黄斑裂开的RD中，对于避免色素沿中央凹区域的积累可能很重要。
