목적 : 황반박리가 동반된 열공망막박리 환자에서 성공적인 재유착 후 황반박리기간에 따른 황반부의 기능을 다국소 망막전위도를 이용하여 알아보고자 하였다. 대상 및 방법 : 황반부가 포함된 열공망막박리로 진단받고 공막돌륭술 또는 기체망막유착술로 성공적인 재유착 후 최소 12개월 이상 경과관찰이 가능했던 19명 19안을 대상으로 황반박리 기간이 7일 이내였던 10안(A군)과 7일을 초과했던 11안(B군)을 대상으로 중심오목(Ring 1)과 황반부(Ring 1+2)의 N1, P1의 진폭과 함의점 시간을 측정하여 비교하였다. 그리고, A군과 정상 대조군 19안의 결과를 동일한 방법으로 비교하였다. 결과 : 황반의 재유착 후 다국소 망막전위도 검사상 중심오목과 황반부에서 A군과 B군의 P1 진폭이 통계적으로 유의한 차이를 보였다(P<0.05). A군과 B군의 N1 진폭은 중심오목에서 통계적으로 유의한 차이가 있었으나(P<0.05), 황반부에서는 통계적으로 유의한 차이가 없었다(P>0.05). A군과 대조군 사이에는 모든 결과에서 통계적으로 유의한 차이가 없었다(P>0.05). 함의점 시간은 중심오목과 황반부 모두 A군과 B군 사이에서 통계적으로 유의한 차이가 없었다. 결론 : 황반박리기간이 재유착 후 황반의 시기능에 중요한 역할을 할 수 있으며, 다국소 망막전위도 검사가 망막박리의 재유착 후 망막 기능을 평가하는데 유용할 것으로 생각된다.

Purpose: To assess macular function by multifocal electroretinography after reattachment of macula-off retinal detachment and to evaluate relationship between duration of macular detachment (DMD) and functional recovery. Methods: Nineteen patients (19 eyes) with macula-off rhegmatogenous retinal detachment underwent pneumatic retinopexy or scleral buckling. Retinal reattachment was obtained successfully in all patients. Duration of follow-up of all patients is at least more than 12 months. Eyes were divided into 2 groups, corresponding to the DMD : Group A (within 7 days, n=9 eyes), Group B (>7 days, n=10 eyes). The amplitudes and implicit times of N1-wave and P1-wave of mfERGs in Area 1 (Ring 1), Area 2 (Ring 1+2) were compared between Group A and B and between Group A and control group. Results: The P1 amplitudes in Area 1 and 2 were significantly different between Group A and B (P<0.05). N1 amplitudes in Area 1 were significantly different between Group A and B (P<0.05), but no significant difference of P1 amplitudes in Area 2 between Group A and B (P>0.05). There were no significant difference of all data between Group A and control in Area 1 and 2 (P>0.05) The implicit times of N1, P1 were not significantly different between Group A and B. Conclusions: The DMD plays a key role in recovery of visual function after reattachment. The mfERG is a useful tool to evaluate the recovery of macular function after reattachment of macula-off retinal detachments.

Purpose: To assess macular function by multifocal electroretinography after reattachment of macula-off retinal detachment and to evaluate relationship between duration of macular detachment (DMD) and functional recovery. Methods: Nineteen patients (19 eyes) with macula-off rhegmatogenous retinal detachment underwent pneumatic retinopexy or scleral buckling. Retinal reattachment was obtained successfully in all patients. Duration of follow-up of all patients is at least more than 12 months. Eyes were divided into 2 groups, corresponding to the DMD : Group A (within 7 days, n=9 eyes), Group B (>7 days, n=10 eyes). The amplitudes and implicit times of N1-wave and P1-wave of mfERGs in Area 1 (Ring 1), Area 2 (Ring 1+2) were compared between Group A and B and between Group A and control group. Results: The P1 amplitudes in Area 1 and 2 were significantly different between Group A and B (P<0.05). N1 amplitudes in Area 1 were significantly different between Group A and B (P<0.05), but no significant difference of P1 amplitudes in Area 2 between Group A and B (P>0.05). There were no significant difference of all data between Group A and control in Area 1 and 2 (P>0.05) The implicit times of N1, P1 were not significantly different between Group A and B. Conclusions: The DMD plays a key role in recovery of visual function after reattachment. The mfERG is a useful tool to evaluate the recovery of macular function after reattachment of macula-off retinal detachments.