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Obtaining maximal optic nerve length during enucleation procedures.

D K Coats1, E A Paysse, Y Chu

  • 1Cullen Eye Institute, Department of Ophthalmology, Baylor College of Medicine, Texas Children's Hospital, Houston 77030, USA. dcoats@bcm.tmc.edu

Archives of Ophthalmology (Chicago, Ill. : 1960)
|January 15, 2000
PubMed
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For enucleation procedures, mildly curved scissors are recommended to obtain longer optic nerve segments. Strongly curved blades should be avoided to ensure optimal specimen length.

Area of Science:

  • Ophthalmic surgery
  • Surgical instrumentation

Background:

  • Enucleation requires obtaining an adequate optic nerve segment for pathological examination.
  • Scissor blade curvature may influence the length of the resected optic nerve specimen.

Purpose of the Study:

  • To evaluate the impact of scissor blade curvature and surgical approach on optic nerve segment length during simulated enucleation.
  • To identify optimal surgical techniques and instrument design for maximizing optic nerve specimen length.

Main Methods:

  • Performed 200 mock enucleations using a human child skull model and silicone eye.
  • Tested temporal and nasal surgical approaches with noncurved, mildly curved, and strongly curved scissor blades.

Main Results:

Related Experiment Videos

  • Mildly curved scissor blades yielded longer optic nerve segments compared to noncurved and strongly curved blades.
  • Both temporal and nasal approaches were effective with mildly curved scissors.
  • Strongly curved blades consistently resulted in shorter specimens.

    • Conclusions:

    • Mildly curved scissors are optimal for enucleation when a long optic nerve specimen is desired.
    • Avoidance of strongly curved scissors is recommended to maximize specimen length.
    • Surgical approach (temporal vs. nasal) did not significantly alter results when using mildly curved scissors.