Bosone G, Reccia R, Roberti G, Russo P
Scuola di Specializzazione, Clinica Oculistica, Università di Napoli, Italia.
Ophthalmic Res. 1989;21(5):345-51. doi: 10.1159/000266896.
Quantitative analyses of the effect of nystagmus surgery have been based previously on the pre- and postoperative comparison of the nystagmus intensity at various gaze angles. On the other hand, a recent hypothetical model of the defective oculomotor system producing congenital nystagmus emphasizes that the time constant of the (increasing velocity) slow-phase eye movements should represent a useful parameter in the quantification of the surgical effects, since it is related to the potential good visual acuity of the patients in the presence of nystagmic cycles with extended foveation. By computer analysis of the pre- and postoperative electro-oculographic recordings from 5 patients with congenital nystagmus we show experimentally that the above theoretical indication is a valid tool in the assessment of the effects of classic nystagmus surgery.
此前，眼球震颤手术效果的定量分析是基于不同注视角度下眼球震颤强度的术前和术后比较。另一方面，最近一个关于产生先天性眼球震颤的动眼系统缺陷的假说模型强调，（速度增加的）慢相眼动的时间常数应是量化手术效果的一个有用参数，因为在存在延长注视中央凹的眼球震颤周期时，它与患者潜在的良好视力有关。通过对5例先天性眼球震颤患者术前和术后的眼电图记录进行计算机分析，我们通过实验表明上述理论指标是评估经典眼球震颤手术效果的有效工具。
