目的: 分析甲醇中毒性视神经病变的临床特征、影像学动态演变及治疗反应，探讨中毒程度、治疗时机与视功能预后的相关性，为优化临床诊疗路径提供循证依据。方法: 采用病例系列研究与文献回顾方法，回顾性纳入2017—2024年在中山大学中山眼科中心确诊的9例(18只眼)甲醇中毒性视神经病变患者，收集其临床资料包括瞳孔变化、眼底照相、光学相干断层成像(optical coherence tomography; OCT)、视野、视觉诱发电位(visual evoked potential; VEP)等，结合文献整合病例数据。纳入标准包括明确甲醇暴露史、急性视力下降伴视盘水肿或视网膜神经纤维层(retinal nerve fiber layer; RNFL)增厚、血/尿甲醇或甲酸浓度升高。排除既往视力不佳或视网膜病变者。通过多模态影像学评估视神经损伤特征，分析治疗反应及预后相关因素。结果: 9例(18只眼)患者年龄为23~51岁(男性7例，女性2例)，中毒后就诊时间为3 d~3个月。最佳矫正视力为无光感(11眼)至1.0，66.7%(12/18眼)出现瞳孔变化，眼底表现为视盘水肿，VEP提示振幅下降伴视野缺损，OCT显示急性期视盘区域RNFL增厚，慢性期进行性萎缩、杯盘比显著增大。经治疗后，12只眼视力提高(随访2个月，4只眼中毒后视力为1.0，未纳入其中)，持续随访(4个月~3年)的患者中，多数患者急性期干预后进入视力平台期，但少数患者仍存在迟发性神经退行风险。因此，部分患者通过早期干预联合全身激素冲击、血液透析、营养神经等治疗可能有助于改善视功能，而部分延迟治疗患者可出现不可逆视力丧失。瞳孔对光反射保留者预后更佳。结论: 甲醇中毒性视神经病变的预后与中毒程度、干预时机及瞳孔反射状态密切相关。早期给予激素冲击联合营养神经治疗可能改善部分患者的预后，但中毒时间长者易遗留不可逆视神经损伤，个性化分期治疗及长期视功能监测对保护残余视力至关重要。

Objective: To analyze the clinical characteristics, dynamic imaging changes, and treatment responses of methanol-induced toxic neuropathy. Additionally, it sought to explore the correlation between poisoning severity, intervention timing, and visual functional outcomes, so as to evidence-based insights for optimizing clinical diagnosis and treatment strategies. Methods: A case-series study combined with a literature review was conducted. Nine patients (18 eyes) diagnosed with methanol-induced toxic neuropathy at Zhongshan Ophthalmic Center, Sun Yat-sen University from 2017 to 2024, were retrospectively included. Clinical data, including pupillary changes, fundus photography, optical coherence tomography (OCT), visual field tests, and visual evoked potentials (VEP), were collected and integrated with findings from the literature. The inclusion criteria were a confirmed history of methanol exposure, acute vision loss accompanied by optic disc edema or retinal nerve fiber layer (RNFL) thickening, and elevated blood/urine methanol or formic acid levels. Patients with pre-existing poor vision or retinal diseases were excluded. Multimodal imaging was employed to evaluate the characteristics of optic nerve injury, and treatment responses and prognostic factors were analyzed. Results: The nine patients (18 eyes) ranged in age from 23–51 years (7 males, 2 females), with the time from poisoning to consultation spanning from 3 days to 3 months. The best-corrected visual acuity (BCVA) ranged from no light perception (NLP, 11 eyes) to 1.0. Pupillary abnormalities were observed in 66.7% (12/18 eyes) of the cases. Fundus examination showed optic disc edema, while VEP revealed reduced amplitude and visual field defects. OCT demonstrated RNFL thickening in the acute phase and progressive atrophy with an increased cup-to-disc ratio (C/D) in the chronic phase. After treatment, 12 eyes showed visual improvement (followed at 2 months; 4 eyes with post-poisoning BCVA of 1.0 were excluded from this analysis). Among patients with extended follow-up (4 months to 3 years), most reached a visual acuity plateau after acute-phase intervention, although a minority remained at risk of delayed neurodegenerative decline. Early intervention with systemic high-dose steroid therapy, hemodialysis, and neuroprotective treatment might improve visual function in some patients, whereas delayed treatment often led to irreversible vision loss. Patients with preserved pupillary light reflexes had more favorable prognoses. Conclusions: The prognosis of methanol-induced optic neuropathy is closely related to poisoning severity, intervention timing, and pupillary reflex status. Early high-dose steroid therapy combined with neuroprotective treatment may enhance outcomes in some patients; however, prolonged poisoning typically results in irreversible neurovisual damage. Personalized staged treatment and long-term visual function monitoring are essential for preserving residual vision.

目的：探讨上睑提肌缩短术和额肌肌瓣悬吊术后眼表改变和恢复的差异。

方法：对2007 年1 月至2007 年4 月在中山眼科中心住院的42例(62只眼)先天性上睑下垂患者，按手术方式和术后是否加用局部用药进行随机分组，观测各组术后2 d、5 d、7 d和2周患者泪液的分泌、泪膜破裂时间、结膜充血、角膜荧光染色、睑板腺功能、瞬目次数、上睑睫毛角度和眼睑闭合情况，并分析其观察结果的差异是否有统计学意义。

结果：3名患者(7.1 ％)因需要加用其它促角膜上皮生长的药物而退出本研究，其中1例(2.3 ％)因倒睫刺激角膜上皮水肿缺损需行手术调整，其余所有患者眼表检测项目的结果均显示不同程度地受到了手术影响，但是随着术后炎症的逐渐消退，这些受影响的眼表异常均会逐渐恢复正常。泪膜破裂时间、瞬目次数、眼睑闭合情况的影响在两种术式之间的差异有统计学意义，而在术后是否局部用药之间没有统计学差异；角膜荧光素染色在是否加用局部用药组之间有统计学差异，而不同术式之间没有统计学差异；泪液分泌量、结膜充血、睑板腺功能、睫毛角度则在所有组别之间均没有统计学差异。

结论：两种上睑下垂的矫正术均会引起患者眼表的改变，额肌肌瓣悬吊术对泪膜破裂时间、瞬目次数、眼睑闭合情况影响的程度较大，而局部用药只能改善角膜荧光素染色异常、对其它眼表因素影响不大。上睑睫毛角度异常是引起角膜损害最危险的因素。

Objective : To investigate the difference of ocular surface change and restoration after ex-ternal levator advancement and frontalis suspension.

Methods : Forty-two patients (62 eyes) with congenital ptosis hospitalized in ZhongshanOphthalmic Center from Jaruary to April in 2007 were randomly divided into four groups according to different surgery types and with or without post surgery ophthalmic medica-tion. Sehirmer test, tear film break-up time , conjunctiva congestion , cornea fluorescentpigmentation , tarsal gland function , winking frequency, angle of eyelash and eyelid clo-sure were all observed and statistically analyzed in all groups 2 days , 5 days , 7 days and 2 weeks after surgery.

Results : Except 3 patients needed advanced ophthalmic medicine, one of whom waswith corneal ulceration and needed another surgery, all the others were observed withocular surface items altered in varied degrees and gradually returned to normality as theinflammation caused by surgery recovered. Break-up time , winking frequency and eyelid closure were statistically diferent between the two types of surgery but not betweengroups with and without post surgery ophthalmic medication. Cornea fluorescent pigmen-tation was statistically different between groups with and without post surgery ophthalmicmedication but not between the two types of surgery. The other items did not have statis-tical difference in all groups.

Conclusion : The two types of surgery for ptosis correction could alter the ocular surface ,but frontalis suspension affect tear film break-up time , winking frequency and eyelid clo-sure much more than levator advancement. Ophthalmic medication after the surgerycould only ameliorate cornea fluorescent pigmentation but was not necessarily to restora-tion of normal ocular surface. Abnormality of eyelash angle was the most dangerous fac-tor to the corea injury.