International Ophthalmology

, Volume 39, Issue 11, pp 2553–2559 | Cite as

Configuration of recipient corneal cut after mechanical trephination in keratoconus

  • Sepehr FeiziEmail author
  • Maryam Najafi
  • Mohammad Ali Javadi
  • Amir A. Azari
Original Paper



To determine the roundness of recipient corneal cuts after mechanical trephination and to investigate possible factors that could affect the corneal bed configuration in deep anterior lamellar keratoplasty (DALK).


This study enrolled 85 eyes with keratoconus that underwent DALK. Recipient corneas were partially trephined using a new, unused, disposable Hessburg-Barron suction trephine. Photographs that best represented the recipient corneal cut were selected, and ImageJ software was used to evaluate the roundness of recipient bed. The effect of potential variables on the roundness of cuts was investigated using the univariate analyses.


The mean patient age was 31.0 ± 9.0 years. The mean recipient trephine size was 8.04 ± 0.29 mm (range 7.5–8.50 mm). The recipient cut roundness was 0.922 ± 0.070, varying from 0.78 to 1.0. The roundness of the corneoscleral limbus (0.874 ± 0.074) which represented the shape of recipient cornea was the main predictor of the configuration of recipient cut (r = 0.84, P < 0.001). Other preoperative characteristics investigated were mean keratometry (P = 0.63), keratometric astigmatism (P = 0.18), central corneal thickness (P = 0.64), keratoconus severity (P = 0.37), and trephine size (P = 0.50) that demonstrated no significant associations with the roundness of cut.


The recipient corneal cut after mechanical trephination may not be circular. The roundness of recipient bed was primarily affected by the roundness of corneoscleral limbus, indicating that the shape of recipient cut tends to follow the original shape of the cornea.


Hessburg-Barron suction trephine Deep anterior lamellar keratoplasty Recipient corneal cut Roundness Mechanical trephination 


Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.


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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  • Sepehr Feizi
    • 1
    Email author
  • Maryam Najafi
    • 1
  • Mohammad Ali Javadi
    • 1
  • Amir A. Azari
    • 1
  1. 1.Ophthalmic Research Center, Labbafinejad Medical CenterShahid Beheshti University of Medical SciencesTehranIran

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