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Laser in situ keratomileusis interface deposits

L W Hirst¹, K W Vandeleur

¹Department of Surgery, University of Queensland, Woolloongabba, Australia.

Journal of Refractive Surgery (Thorofare, N.J. : 1995)

|December 29, 1998

Summary

A dry methylcellulose sponge used during laser in situ keratomileusis (LASIK) surgery may cause unexpected brown interface deposits. Eliminating this sponge prevented the issue in subsequent LASIK procedures.

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Area of Science:

Ophthalmology
Surgical Innovation
Biomaterials Science

Background:

Investigated the cause of brown interface deposits in 15 eyes post-laser in situ keratomileusis (LASIK).
Examined the LASIK procedure and potential causative agents for these deposits.

Observation:

Sequential elimination of suspected agents related to brown interface deposits.
Monitoring of eyes post-LASIK for the presence or absence of interface deposits.

Findings:

Twenty-five consecutive LASIK eyes without the use of a methylcellulose sponge to protect the hinge showed no interface deposits.
The use of a dry methylcellulose sponge was identified as a potential cause.

Implications:

Suggests a link between dry methylcellulose sponges and post-LASIK interface deposits.
Highlights the need to re-evaluate surgical adjuncts in LASIK procedures.
Informs surgical protocols to prevent unexpected complications.

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