Effect of Trephine Tilt on Corneal Button Dimensions

Cohen, Kenneth L.; Holman, Ronald E.; Tripoli, Nancy K.; Kupper, Lawrence L.

doi:10.1016/0002-9394(86)90777-4

Cited by 57 publications

(10 citation statements)

References 2 publications

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“…Intraoperative factors include size and shape of the donor button and the recipient corneal bed [3,31], the placement and tightness of sutures, the suturing technique and the skills and experience of the surgeon. During the triple procedure, distortions of the anterior chamber during IOL insertion may play a role.…”

Section: Discussionmentioning

confidence: 99%

Long-term refractive and visual outcome after penetrating keratoplasty only versus the triple procedure in Fuchs' dystrophy

Das

Langenbucher

Jacobi

et al. 2006

Graefe's Arch Clin Exp Ophthalmo

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Section: Discussionmentioning

confidence: 99%

Long-term refractive and visual outcome after penetrating keratoplasty only versus the triple procedure in Fuchs' dystrophy

Das

Langenbucher

Jacobi

et al. 2006

Graefe's Arch Clin Exp Ophthalmo

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“…Other factors that could potentially influence the refractive outcome after surgery includes the size of the graft and recipient corneal bed, trephination, and suturing technique. 38,40,41 Astigmatic error…”

Section: Emmetropiamentioning

confidence: 99%

The visual and refractive outcomes of combined and sequential penetrating keratoplasty, cataract extraction, and intraocular lens insertion

Nguyen

Mumford

Jones

et al. 2008

Eye

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Purpose The aim of this study was to investigate the visual and refractive outcome of combined penetrating keratoplasty, cataract extraction, and intraocular lens insertion (triple procedure) compared with cataract surgery following penetrating keratoplasty (sequential surgery). Methods Retrospective cohort study of 1256 first penetrating keratoplasty for Fuchs' dystrophy performed between April 1999 and December 2005. In all, 1202 triple and 54 sequential procedures were reviewed. At 1 year, refractive outcomes were available for 499 triple procedure and 26 sequential surgery eyes. At 2 years, data were available for 264 triple procedure and 10 sequential surgery eyes. At 1 and 2 years postoperatively, graft survival, best-corrected visual acuity (BCVA), spherical equivalent, and cylindrical error were recorded. v 2 -Tests were used to compare visual outcomes between the two groups.Results At 1 year after triple procedure surgery, 61% of eyes attained BCVA of X6/12, with 47% of eyes within±2 D of emmetropia. After sequential surgery, 59% achieved BCVA of X6/12 with 67% of eyes within±2 D of emmetropia ( ¼ 0.05). Mean spherical equivalent (MSE) at 1 and 2 years after triple procedure was þ 1.20 D (SD 5.45) and þ 0.15 D (SD 3.58), respectively. MSE following sequential surgery at 1 and 2 years was þ 0.08 D (SD 3.06) and À1.50 D (SD 3.14), respectively. Mean refractive cylinder after combined surgery was þ 4.16 D (SD 5.11) and þ 3.91 D (SD 2.79) at 1 and 2 years, respectively, compared with þ 3.65 D (SD 2.24) and þ 3.70 D (SD 2.06) after sequential surgery. In all, 29% of triple procedure and 27% sequential surgery eyes had an astigmatic error X5.0 D after 1 year (P ¼ 0.64), which increased to 34 and 30%, respectively, by the second year. The 5-year graft survival was 85% in both groups. There were no differences in graft survival, visual or refractive outcomes between triple procedure, and sequential surgery techniques. Conclusions This analysis provided no evidence of improved visual or refractive outcome after sequential surgery compared with triple procedure.

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“…5,6 Patients with keratoconus constitute an important group because of the high prevalence, younger age of onset, active lifestyle, and higher visual requirements. 7 Factors that may affect postkeratoplasty astigmatism include suturing technique, [3][4][5][6]8 type and size of trephines, [9][10][11] time of suture removal or adjustment, [12][13][14][15][16] apposition of donor and recipient tissues, 17 oval or eccentric trephination, 9 and donor-recipient disparity. 11 Different suturing techniques have been applied for PKP including interrupted (IR), single running (SR), double running (DR), and combined interrupted and running (CIR), each with its own benefits and drawbacks.…”

mentioning

confidence: 99%

Comparison of the Effect of Three Suturing Techniques on Postkeratoplasty Astigmatism in Keratoconus

Javadi

Naderi²,

Zare³

et al. 2006

Cornea

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Effect of Trephine Tilt on Corneal Button Dimensions

Cited by 57 publications

References 2 publications

Long-term refractive and visual outcome after penetrating keratoplasty only versus the triple procedure in Fuchs' dystrophy

Long-term refractive and visual outcome after penetrating keratoplasty only versus the triple procedure in Fuchs' dystrophy

The visual and refractive outcomes of combined and sequential penetrating keratoplasty, cataract extraction, and intraocular lens insertion

Comparison of the Effect of Three Suturing Techniques on Postkeratoplasty Astigmatism in Keratoconus

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