Fay Aaron, Lee Lillian C, Pasquale Louis R
Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard University, Boston, Massachusetts 02114, U.S.A.
Ophthalmic Plast Reconstr Surg. 2003 Mar;19(2):151-3. doi: 10.1097/01.IOP.0000055827.78632.CA.
We describe a previously unreported cause of apparent bitemporal hemianopsia. Three patients with bilateral dermatochalasis underwent Humphrey visual field (HVF) testing in anticipation of corrective blepharoplasty. Unexpectedly, the HVF showed bitemporal hemianopsia in each case, prompting magnetic resonance imaging of the brain in one case. The scan was negative. The HVF tests were repeated with the upper eyelids taped in elevation, and were normal. We conclude that the bitemporal hemianopic defects in our patients resulted from the testing strategy employed by the HVF analyzer software to measure the visual field. Reasons for these artifactual results are discussed. Clinicians should be aware of this uncommon cause of bitemporal hemianopic visual field defects.
我们描述了一种此前未报道过的导致明显双颞侧偏盲的原因。三名患有双侧上睑皮肤松弛症的患者在预期进行矫正性眼睑成形术之前接受了 Humphrey 视野（HVF）测试。出乎意料的是，HVF 在每个病例中均显示双颞侧偏盲，促使其中一名患者进行了脑部磁共振成像检查。扫描结果为阴性。在上眼睑被胶带抬起的情况下重复进行 HVF 测试，结果正常。我们得出结论，我们患者中的双颞侧偏盲缺陷是由 HVF 分析仪软件用于测量视野的测试策略导致的。讨论了这些伪像结果的原因。临床医生应意识到这种导致双颞侧偏盲视野缺损的罕见原因。
