Nozzle tip damage in three generations of intraocular lens injector models: an experimental laboratory study.

Item request has been placed! ×
Item request cannot be made. ×
loading   Processing Request
Read More Add to Saved list
  • Additional Information
    • Source:
      Publisher: BioMed Central Country of Publication: England NLM ID: 100967802 Publication Model: Electronic Cited Medium: Internet ISSN: 1471-2415 (Electronic) Linking ISSN: 14712415 NLM ISO Abbreviation: BMC Ophthalmol Subsets: MEDLINE
    • Publication Information:
      Original Publication: London : BioMed Central, [2001-
    • Subject Terms:
      Lenses, Intraocular* ; Phacoemulsification*; Humans ; Lens Implantation, Intraocular/methods ; Germany
    • Abstract:
      Purpose: 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.
      Setting: 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.
      Results: 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).
      Conclusions: 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.
      (© 2022. The Author(s).)
    • References:
      J Cataract Refract Surg. 2017 Apr;43(4):558-563. (PMID: 28532943)
      Br J Ophthalmol. 2006 Oct;90(10):1249-51. (PMID: 16854825)
      J Cataract Refract Surg. 1998 Sep;24(9):1220-2. (PMID: 9768396)
      Sci Rep. 2022 Feb 17;12(1):2723. (PMID: 35177741)
      J Cataract Refract Surg. 2002 Jan;28(1):8-9. (PMID: 11777700)
      Int J Ophthalmol. 2018 Jan 18;11(1):6-11. (PMID: 29375983)
      J Cataract Refract Surg. 2019 Jun;45(6):840-846. (PMID: 30853318)
      Kaohsiung J Med Sci. 2017 Mar;33(3):137-143. (PMID: 28254116)
      Br J Ophthalmol. 2005 Nov;89(11):1474-7. (PMID: 16234456)
      Clin Ophthalmol. 2016 Jun 17;10:1123-9. (PMID: 27382245)
    • Contributed Indexing:
      Keywords: Damage of nozzle tip; Intraocualr lens (IOL) injector; Johnson &Johnson
    • Publication Date:
      Date Created: 20230104 Date Completed: 20230106 Latest Revision: 20230111
    • Publication Date:
      20240829
    • Accession Number:
      PMC9811761
    • Accession Number:
      10.1186/s12886-022-02726-y
    • Accession Number:
      36600209