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[Surface changes in glass eye prostheses].

F Härting, O W Flörke, N Bornfeld

    Klinische Monatsblatter Fur Augenheilkunde
    |October 1, 1984
    PubMed
    Summary
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    Glass eye prostheses degrade over time due to chemical reactions with alkaline tear fluid, leading to surface roughening. This surface change can cause mechanical irritation and chronic conjunctival inflammation in patients wearing artificial eyes.

    Area of Science:

    • Ophthalmology
    • Materials Science
    • Biomaterials

    Context:

    • Glass eye prostheses (ocular prostheses) are used to replace missing eyes.
    • The long-term integrity and biocompatibility of ocular prostheses are critical for patient well-being.
    • Surface degradation of implants can lead to adverse biological responses.

    Purpose:

    • To investigate the surface changes and degradation mechanisms of glass eye prostheses during use.
    • To correlate the observed surface alterations with the duration of wear and the ocular environment.
    • To understand the etiology of chronic conjunctival inflammation associated with ocular prosthesis use.

    Summary:

    • The exposed surfaces of glass eye prostheses undergo degradation and roughening with prolonged use.

    Related Experiment Videos

  • Scanning electron microscopy and optical microscopy reveal surface alterations dependent on wear duration.
  • Chemical attack by alkaline tear fluid is identified as the primary cause of glass surface deterioration.
  • Surface roughness is implicated as a cause of mechanical irritation, potentially leading to chronic conjunctival inflammation.

    • Impact:

    • Understanding the degradation process of glass ocular prostheses is crucial for improving their design and longevity.
    • Identifying the causes of surface roughening can inform the development of more biocompatible and durable artificial eyes.
    • This research may lead to reduced patient discomfort and fewer inflammatory complications associated with ocular prostheses.