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Keratophakia--postoperative astigmatism.

C A Swinger1, R C Troutman, J S Forman

  • 1Department of Ophthalmology, Beth Israel Medical Center, New York, New York.

Cornea
|January 1, 1987
PubMed
Summary
This summary is machine-generated.

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Primary keratophakia surgery significantly induced astigmatism (1.55 D), unlike secondary procedures (0.19 D). Both methods, however, showed a tendency to cause against-the-rule and irregular astigmatism post-surgery.

Area of Science:

  • Ophthalmology
  • Refractive Surgery

Background:

  • Keratophakia, a refractive surgical procedure, involves corneal tissue transplantation.
  • Understanding postoperative astigmatism is crucial for evaluating surgical outcomes.

Purpose of the Study:

  • To analyze and compare surgically induced astigmatism after primary and secondary keratophakia.
  • To identify tendencies for specific types of astigmatism following these procedures.

Main Methods:

  • Retrospective analysis of 49 primary and 13 secondary keratophakia cases.
  • Measurement and comparison of postoperative astigmatism.

Main Results:

  • Primary keratophakia induced an average of 1.55 D of astigmatism.
  • Secondary keratophakia induced insignificant astigmatism (0.19 D).

Related Experiment Videos

  • Both procedures demonstrated a propensity to induce against-the-rule and irregular astigmatism.

    • Conclusions:

    • Primary keratophakia is associated with significant surgically induced astigmatism.
    • Secondary keratophakia has minimal impact on induced astigmatism.
    • Both keratophakia types can lead to against-the-rule and irregular astigmatism, requiring careful consideration.