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Related Experiment Videos

Corneal thickness after cataract surgery.

M Tragakis, I Economidis, P Athanassiades

    Transactions of the Ophthalmological Societies of the United Kingdom
    |April 1, 1977
    PubMed
    Summary

    Corneal swelling after cataract surgery typically resolves within 42 days. Suture material impacts swelling, with virgin silk causing the least and chromic catgut the most.

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    Area of Science:

    • Ophthalmology
    • Corneal Physiology

    Background:

    • Corneal thickness increase post-cataract surgery is common.
    • This swelling reflects endothelial function and surgical impact.
    • The timeline for endothelial recovery and swelling resolution remains unclear.

    Purpose of the Study:

    • To investigate the rate of corneal swelling and recovery after cataract surgery.
    • To assess the influence of different suture materials on postoperative corneal edema.

    Main Methods:

    • Central corneal thickness was measured in 55 eyes preoperatively and on multiple postoperative days (3, 7, 14, 21, 28, 42).
    • Eyes had normal preoperative slit-lamp endothelial appearance.
    • Corneal swelling was correlated with suture type (chromic catgut, black silk 7/0, virgin silk 8/0).

    Main Results:

    • Initial corneal thickness averaged 0.56 mm.
    • Maximum corneal swelling reached 16% on postoperative day 3.
    • Complete return to preoperative thickness occurred in all eyes within 42 days.
    • Suture material influenced swelling: chromic catgut (19%), black silk (13-16%), virgin silk (9%).

    Conclusions:

    • Post-cataract surgery corneal edema is a predictable event.
    • Corneal thickness generally normalizes within 42 days.
    • Suture choice significantly affects the degree of initial corneal swelling.

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