A simple soilless cultural column was composed of columnar wall, columnar body and culture medium. The columnar wall was a chemical material woven with polypropyrene synthetic fibre. The columnar body consisted of a w...A simple soilless cultural column was composed of columnar wall, columnar body and culture medium. The columnar wall was a chemical material woven with polypropyrene synthetic fibre. The columnar body consisted of a water pipe of 200 cm long and 2 cm in the diameter and 12 circular spacers of 15 cm wide with central circular hole of 2 cm in diameter, which could allow the former water pipe go through to constitute the columnar body. There were many small holes in the spaces so water (nutrient solution) in the column could leak freely from the top of the column. The urea-formaldehyde plastic pieces were used as cultural medium after they were filled into the interval between two spacers on the column. 284 columns (200 cm in height, 15 cm in diameter) were contacted and paralleled to form a "woods" cultural unit (A= 160 m 2 ) for culturing tomato(Lycopersicum Mill) and lettuce(Capitata L.). Fig 4, Ref展开更多
目的探讨Nd：YAG激光玻璃体松解术治疗玻璃体Weiss环的效果。设计回顾性病例系列。研究对象以飞蚊症为主诉的、因玻璃体后脱离引起玻璃体漂浮物（Weiss环）的患者192例。方法选择2004年10月至2013年7月期间在厦门眼科中心接受激光玻璃...目的探讨Nd：YAG激光玻璃体松解术治疗玻璃体Weiss环的效果。设计回顾性病例系列。研究对象以飞蚊症为主诉的、因玻璃体后脱离引起玻璃体漂浮物（Weiss环）的患者192例。方法选择2004年10月至2013年7月期间在厦门眼科中心接受激光玻璃体松解术治疗玻璃体Weiss环患者192例（218眼）,术后随访3～36个月。术前进行视力、眼压、三面镜、裂隙灯照相、眼部B超、部分行眼底全景激光照相、眼底自发荧光检查及荧光素眼底血管造影检查,确定玻璃体Weiss环的位置及大小。Weiss环按直径范围分成：小环〈2 mm（119眼）,中环2～4 mm（80眼）,大环〉4 mm（19眼）。选用ZEISS公司生产的VISULAS YAGII或YAGIII激光,单脉冲模式,能量5～10 m J,将激光瞄准于造成症状的玻璃体漂浮物逐个击散、粉碎、气化。以症状是否完全消失、好转或无效用于评估治疗的效果,并观察是否有其他并发症。主要指标有效率、好转率、并发症。结果单个患者单次治疗总能量从56～2136 m J,平均为（961±354）m J。单次治疗时长4～31分钟,平均（18±5.2）分钟。166眼进行1次治疗,35眼2次治疗,17眼3次治疗。症状完全消失者182眼（83.49%）,其中小环为94.12%,中环77.50%,大环42.11%;好转者32眼（14.68%）,无效者为4眼（1.83%）。未观察到激光直接所致的视力或视野损害、晶状体损伤、眼压升高、视网膜血管损害、色素上皮自发荧光损害等。结论对于玻璃体Weiss环引起的飞蚊症,在严格选择治疗适应证下,Nd：YAG激光玻璃体松解术治疗是一种相对安全、简便、快捷的手段,尤其对较小漂浮物的患者效果更佳。展开更多
文摘A simple soilless cultural column was composed of columnar wall, columnar body and culture medium. The columnar wall was a chemical material woven with polypropyrene synthetic fibre. The columnar body consisted of a water pipe of 200 cm long and 2 cm in the diameter and 12 circular spacers of 15 cm wide with central circular hole of 2 cm in diameter, which could allow the former water pipe go through to constitute the columnar body. There were many small holes in the spaces so water (nutrient solution) in the column could leak freely from the top of the column. The urea-formaldehyde plastic pieces were used as cultural medium after they were filled into the interval between two spacers on the column. 284 columns (200 cm in height, 15 cm in diameter) were contacted and paralleled to form a "woods" cultural unit (A= 160 m 2 ) for culturing tomato(Lycopersicum Mill) and lettuce(Capitata L.). Fig 4, Ref
文摘目的探讨Nd：YAG激光玻璃体松解术治疗玻璃体Weiss环的效果。设计回顾性病例系列。研究对象以飞蚊症为主诉的、因玻璃体后脱离引起玻璃体漂浮物（Weiss环）的患者192例。方法选择2004年10月至2013年7月期间在厦门眼科中心接受激光玻璃体松解术治疗玻璃体Weiss环患者192例（218眼）,术后随访3～36个月。术前进行视力、眼压、三面镜、裂隙灯照相、眼部B超、部分行眼底全景激光照相、眼底自发荧光检查及荧光素眼底血管造影检查,确定玻璃体Weiss环的位置及大小。Weiss环按直径范围分成：小环〈2 mm（119眼）,中环2～4 mm（80眼）,大环〉4 mm（19眼）。选用ZEISS公司生产的VISULAS YAGII或YAGIII激光,单脉冲模式,能量5～10 m J,将激光瞄准于造成症状的玻璃体漂浮物逐个击散、粉碎、气化。以症状是否完全消失、好转或无效用于评估治疗的效果,并观察是否有其他并发症。主要指标有效率、好转率、并发症。结果单个患者单次治疗总能量从56～2136 m J,平均为（961±354）m J。单次治疗时长4～31分钟,平均（18±5.2）分钟。166眼进行1次治疗,35眼2次治疗,17眼3次治疗。症状完全消失者182眼（83.49%）,其中小环为94.12%,中环77.50%,大环42.11%;好转者32眼（14.68%）,无效者为4眼（1.83%）。未观察到激光直接所致的视力或视野损害、晶状体损伤、眼压升高、视网膜血管损害、色素上皮自发荧光损害等。结论对于玻璃体Weiss环引起的飞蚊症,在严格选择治疗适应证下,Nd：YAG激光玻璃体松解术治疗是一种相对安全、简便、快捷的手段,尤其对较小漂浮物的患者效果更佳。
