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Retinal tacks: tolerance and tissue reaction in a human eye
R C Tripathi1, D M Pon, R A Levine
1Department of Ophthalmology and Visual Science, University of Chicago Medical Center, Ill.
Ophthalmic Surgery
|September 1, 1989
Summary
Metallic alloy tacks used for giant retinal detachment can dislodge, causing localized tissue damage. Improved tack design and insertion techniques are needed to prevent these complications.
Area of Science:
- Ophthalmology
- Retinal Detachment Surgery
- Histopathology
Background:
- Giant retinal detachment (GRD) treatment often involves surgical interventions to reattach the retina.
- Metallic alloy tacks are utilized in some GRD repair procedures.
- Understanding the long-term histopathologic effects of these tacks is crucial for patient outcomes.
Observation:
- Histopathologic examination of a human eye enucleated after GRD surgery revealed findings related to three nonmagnetic, metallic alloy tacks.
- One tack was found in the anterior chamber five months post-surgery, indicating dislodgement.
- The two remaining tacks induced localized glial reactions, breaks in Bruch's membrane, and loss of retinal pigment epithelium and choriocapillaris.
Findings:
- Tack penetration through the choroid and sclera resulted in localized scarring and minimal inflammation.
- The metallic alloy tacks themselves showed no signs of inflammatory cell infiltration or degradation.
- Despite localized damage, the two retained tacks were tolerated within the posterior segment.
Implications:
- Dislodgement of metallic alloy tacks is a potential complication in GRD surgery.
- The histopathologic changes observed highlight the importance of tack stability and biocompatibility.
- Further research into improved tack design and surgical insertion methods is warranted to enhance safety and efficacy in retinal detachment repair.