Encyclopedia of Ophthalmology

Living Edition
| Editors: Ursula Schmidt-Erfurth, Thomas Kohnen

Residual Stroma Thickness

Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-35951-4_366-3

Synonyms

Definition

The amount of corneal tissue which is left, i.e., after LASIK. According to the Food and Drug Administration, a minimum of 250 μm of residual stroma thickness should be left under the LASIK flap in order to avoid corneal ectasia.

Epidemiology

No epidemiological data available.

History

Since LASIK has been performed in the late 1980s, the residual stroma thickness also became a term in refractive surgery.

Clinical Features

No clinical feature data available for this topic.

Tests

The residual stroma thickness can be measured by ultrawave pachymetry, anterior segment optical coherence tomography, or corneal topography.

Differential Diagnosis

Corneal treatment procedures which are dependent on the stroma thickness are as follows:
  • LASIK

  • LASEK

  • PRK

Etiology

See History section above.

Treatment

See cross-references for an exact description of the different treatment methods involving the stroma thickness.

Cross-References

Further Reading

  1. Albert DM, Miller JW, Azar DT (2008) Albert & Jakobiec’s principles & practice of ophthalmology. Saunders, PhiladelphiaGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Department of OphthalmologyGoethe-University Frankfurt am MainFrankfurt/MainGermany