Department of Ophthalmology, David J Apple Center for Vision Research, University Hospital Heidelberg, Im Neuenheimer Feld 400, Heidelberg, 69120, Germany.
BMC Ophthalmol. 2023 Jan 4;23(1):7. doi: 10.1186/s12886-022-02726-y.
To assess the nozzle tip damage of IOL injectors in three generations from the same manufacturer using the self-developed system-the Heidelberg Score for IOL Injector Damage.
David J Apple Center for Vision Research, Department of Ophthalmology, University Hospital Heidelberg, Heidelberg, Germany DESIGN: Experimental laboratory study METHODS: The nozzle tip damage of three injector models (Emerald, iTec, and Simplicity) was determined using the Heidelberg score for IOL injector damage. Damage to the nozzle tip was examined under a microscope and graded as follows: no damage (score 0), slight scratches (1), deep scratches (2), extensions (3), cracks (4) and bursts (5). The total scores for each injector system were the sum of scores for all injectors in this model. Total scores of the three injector systems were evaluated and compared. The nozzle tip parameters (diameters, tip angles) were also measured in each group.
The Emerald system achieved the highest total scores, while the other two systems achieved similar total scores. There was no statistically significant difference in the total scores between the study groups (P > 0.05). The outer cross-sectional diameters were 2.10 and 2.10 mm for Emerald, 1.80 and 1.78 mm for iTec, and 1.78 and 1.80 mm for Simplicity. The thickness of the nozzle tips was 0.13 mm (Emerald), 0.17 mm (iTec) and 0.17 mm (Simplicity). The tip angle for three injector models was 35° (Emerald), 45° (iTec), and 45° (Simplicity).
Although different injector models exhibited varying degrees of damage to the nozzle tip, all injector models generally showed relatively good results. Newer generations of IOL injector models tend to perform better in terms of nozzle tip damage after IOL implantation.
使用自主研发的系统——海德堡人工晶状体注射器损伤评分（Heidelberg Score for IOL Injector Damage）评估同一制造商的三代人工晶状体注射器的喷嘴尖端损伤。
德国海德堡大学医院眼科的 David J Apple 视觉研究中心。
实验性实验室研究。
使用海德堡人工晶状体注射器损伤评分评估三种注射器模型（Emerald、iTec 和 Simplicity）的喷嘴尖端损伤。在显微镜下检查喷嘴尖端损伤并分级如下：无损伤（评分为 0）、轻微划痕（1）、深度划痕（2）、延伸（3）、裂缝（4）和爆裂（5）。每个模型中所有注射器的评分总和为该注射器系统的总评分。评估和比较了三个注射器系统的总评分。还测量了每组的喷嘴尖端参数（直径、尖端角度）。
Emerald 系统的总评分最高，而其他两个系统的总评分相似。研究组之间的总评分无统计学差异（P>0.05）。 Emerald 的外横截面积直径为 2.10 和 2.10mm，iTec 为 1.80 和 1.78mm，Simplicity 为 1.78 和 1.80mm。喷嘴尖端的厚度为 0.13mm（Emerald）、0.17mm（iTec）和 0.17mm（Simplicity）。三个注射器模型的尖端角度为 35°（Emerald）、45°（iTec）和 45°（Simplicity）。
尽管不同的注射器模型对喷嘴尖端的损伤程度不同，但所有注射器模型总体上表现出相对较好的结果。新一代人工晶状体注射器模型在人工晶状体植入后喷嘴尖端损伤方面表现更好。
