Abstract
Corneas with large perforations complicate penetrating keratoplasty due to the increased risk of anterior chamber collapse they pose. We hypothesize that suction trephines should produce more uniform corneal openings than non- suction trephines. Penetrating keratoplasties using Franceschetti-type freeblades, and Hanna and Hessberg-Barron suction trephines were performed on human eye bank eyes with large corneal perforations. The trephined corneas' histologic appearance was graded according to depth, sharpness, and perpendicularity of cut. Suction trephines were easier to use, resulted in less anterior chamber collapse, caused less corneal distortion, and created a sharper, deeper and more perpendicular incision. The Hessberg-Barron and Hanna trephines performed better than the freeblades in this study.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 209-215 |
| Number of pages | 7 |
| Journal | Ophthalmic Surgery |
| Volume | 26 |
| Issue number | 3 |
| State | Published - 1995 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Ophthalmology
Cite this
Comparison of three corneal trephines for use in therapeutic penetrating keratoplasties for large corneal perforations. / Ng, John; Nekola, M.; Parmley, V. C.; Richardson, M.; Mader, T.
In: Ophthalmic Surgery, Vol. 26, No. 3, 1995, p. 209-215.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Comparison of three corneal trephines for use in therapeutic penetrating keratoplasties for large corneal perforations
AU - Ng, John
AU - Nekola, M.
AU - Parmley, V. C.
AU - Richardson, M.
AU - Mader, T.
PY - 1995
Y1 - 1995
N2 - Corneas with large perforations complicate penetrating keratoplasty due to the increased risk of anterior chamber collapse they pose. We hypothesize that suction trephines should produce more uniform corneal openings than non- suction trephines. Penetrating keratoplasties using Franceschetti-type freeblades, and Hanna and Hessberg-Barron suction trephines were performed on human eye bank eyes with large corneal perforations. The trephined corneas' histologic appearance was graded according to depth, sharpness, and perpendicularity of cut. Suction trephines were easier to use, resulted in less anterior chamber collapse, caused less corneal distortion, and created a sharper, deeper and more perpendicular incision. The Hessberg-Barron and Hanna trephines performed better than the freeblades in this study.
AB - Corneas with large perforations complicate penetrating keratoplasty due to the increased risk of anterior chamber collapse they pose. We hypothesize that suction trephines should produce more uniform corneal openings than non- suction trephines. Penetrating keratoplasties using Franceschetti-type freeblades, and Hanna and Hessberg-Barron suction trephines were performed on human eye bank eyes with large corneal perforations. The trephined corneas' histologic appearance was graded according to depth, sharpness, and perpendicularity of cut. Suction trephines were easier to use, resulted in less anterior chamber collapse, caused less corneal distortion, and created a sharper, deeper and more perpendicular incision. The Hessberg-Barron and Hanna trephines performed better than the freeblades in this study.
UR - http://www.scopus.com/inward/record.url?scp=0029069536&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0029069536&partnerID=8YFLogxK
M3 - Article
VL - 26
SP - 209
EP - 215
JO - Ophthalmic Surgery Lasers and Imaging Retina
JF - Ophthalmic Surgery Lasers and Imaging Retina
SN - 2325-8160
IS - 3
ER -