<strong>Background:</strong><span "=""> Macular hole is a known cause of central visual defect with varying etiologies in different parts of the world. It was considered an untreatable...<strong>Background:</strong><span "=""> Macular hole is a known cause of central visual defect with varying etiologies in different parts of the world. It was considered an untreatable condition until 1991 when varying treatment techniques began to emerge with resultant restoration of central vision. This study was carried out to evaluate the prevalence and pattern of Macular hole in a tertiary eye centre in Nigeria. <b>Method:</b> This is a prospective hospital</span>-<span "="">based study over a 5 year period spanning from November 2013 to October 2018. All patients with macular hole seen within this period were included in the study. Relevant data were recorded with a structured questionnaire and analysed with SPSS version 20. <b>Results:</b> There were 46 eyes of 42 patients which constituted about 0.5% of all new patients seen over the study period. Male to female ratio was 1:1.3 with age ranged between 15 and 91years (mean</span><span "=""> </span>=<span "=""> </span>61.8<span "=""> </span>±<span "=""> </span>16.5<span "=""> </span>years). The majority of <span "="">the patients (95.7%) had Idiopathic macular hole. Half of the patients (54.8%) had visual acuity less than 3/60 in the affected eye at the time of presentation. The majority (95.7%) of the patients did not accept the recommended surgical treatment option because of financial incapacitation. <b>Conclusion:</b> Macular hole is a disease of marked visual consequence. Available treatment option is still not within the reach of the majority because of the high cost.展开更多
目的:探讨心血管危险因素对非动脉炎性前部缺血性视神经病变(NAION)的发生及视功能的影响。方法:选取2014-06/2018-06于我科就诊的单眼初发NAION患者(NAION组)和与其基本资料匹配的非NAION患者(对照组)各68例68眼,检测两组患者同型半胱...目的:探讨心血管危险因素对非动脉炎性前部缺血性视神经病变(NAION)的发生及视功能的影响。方法:选取2014-06/2018-06于我科就诊的单眼初发NAION患者(NAION组)和与其基本资料匹配的非NAION患者(对照组)各68例68眼,检测两组患者同型半胱氨酸(Hcy)、血脂、叶酸、维生素B12水平,并进行颈动脉多普勒超声检查,NAION组患者同时进行视功能检查。结果:与对照组相比,NAION组患者Hcy(24.8±13.9μmol/L vs 11.1±8.2μmol/L)、血浆中总胆固醇(4.5±1.0mmol/L vs 3.8±0.7mmol/L)、甘油三酯(2.0±0.9mmol/L vs 1.5±0.5mmol/L)、低密度脂蛋白(2.9±0.8mmol/L vs 2.3±0.5mmol/L)水平均升高(P<0.05),维生素B12水平明显下降(315.6±214.5pg/mL vs 467.9±198.2pg/mL,P<0.05),但两组患者颈内动脉阻力指数和内径无差异。NAION组患者患眼视野缺损值为16.6±7.5dB,Hcy、维生素B12、叶酸及血脂水平以及是否存在全身疾病均不是NAION视野损害的危险因素,而图形视觉诱发电位P100波幅和潜伏期峰值均与视野缺损值相关。结论:高同型半胱氨酸、高血脂和低维生素B12水平是NAION发生的危险因素,但与NAION的视野损害程度无关;视觉诱发电位的波幅和潜伏期峰值可一定程度上反映视野损害的程度。展开更多
文摘<strong>Background:</strong><span "=""> Macular hole is a known cause of central visual defect with varying etiologies in different parts of the world. It was considered an untreatable condition until 1991 when varying treatment techniques began to emerge with resultant restoration of central vision. This study was carried out to evaluate the prevalence and pattern of Macular hole in a tertiary eye centre in Nigeria. <b>Method:</b> This is a prospective hospital</span>-<span "="">based study over a 5 year period spanning from November 2013 to October 2018. All patients with macular hole seen within this period were included in the study. Relevant data were recorded with a structured questionnaire and analysed with SPSS version 20. <b>Results:</b> There were 46 eyes of 42 patients which constituted about 0.5% of all new patients seen over the study period. Male to female ratio was 1:1.3 with age ranged between 15 and 91years (mean</span><span "=""> </span>=<span "=""> </span>61.8<span "=""> </span>±<span "=""> </span>16.5<span "=""> </span>years). The majority of <span "="">the patients (95.7%) had Idiopathic macular hole. Half of the patients (54.8%) had visual acuity less than 3/60 in the affected eye at the time of presentation. The majority (95.7%) of the patients did not accept the recommended surgical treatment option because of financial incapacitation. <b>Conclusion:</b> Macular hole is a disease of marked visual consequence. Available treatment option is still not within the reach of the majority because of the high cost.
文摘目的:探讨心血管危险因素对非动脉炎性前部缺血性视神经病变(NAION)的发生及视功能的影响。方法:选取2014-06/2018-06于我科就诊的单眼初发NAION患者(NAION组)和与其基本资料匹配的非NAION患者(对照组)各68例68眼,检测两组患者同型半胱氨酸(Hcy)、血脂、叶酸、维生素B12水平,并进行颈动脉多普勒超声检查,NAION组患者同时进行视功能检查。结果:与对照组相比,NAION组患者Hcy(24.8±13.9μmol/L vs 11.1±8.2μmol/L)、血浆中总胆固醇(4.5±1.0mmol/L vs 3.8±0.7mmol/L)、甘油三酯(2.0±0.9mmol/L vs 1.5±0.5mmol/L)、低密度脂蛋白(2.9±0.8mmol/L vs 2.3±0.5mmol/L)水平均升高(P<0.05),维生素B12水平明显下降(315.6±214.5pg/mL vs 467.9±198.2pg/mL,P<0.05),但两组患者颈内动脉阻力指数和内径无差异。NAION组患者患眼视野缺损值为16.6±7.5dB,Hcy、维生素B12、叶酸及血脂水平以及是否存在全身疾病均不是NAION视野损害的危险因素,而图形视觉诱发电位P100波幅和潜伏期峰值均与视野缺损值相关。结论:高同型半胱氨酸、高血脂和低维生素B12水平是NAION发生的危险因素,但与NAION的视野损害程度无关;视觉诱发电位的波幅和潜伏期峰值可一定程度上反映视野损害的程度。
