Astigmatismusreduktion durch 4 mm langen nahtfreien kornealen Starschnitt (Stretch-Inzision) mit Phakoemulsifikation und 5 mm PMMA-Linsen-Implantation

Müller-Jensen, K; Schüler, M

doi:10.1055/s-2008-1034926

Klin Monatsbl Augenheilkd

1998

DOI: 10.1055/s-2008-1034926

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Astigmatismusreduktion durch 4 mm langen nahtfreien kornealen Starschnitt (Stretch-Inzision) mit Phakoemulsifikation und 5 mm PMMA-Linsen-Implantation

K Müller-Jensen

M Schüler²

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Cited by 3 publications

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“…It seems that the on-axis incisions' (OAIs) ability to induce neutralizing astigmatism is limited to approximately 1.0 diopter (D), depending on the incision size and the location of the steep meridian. [4][5][6][7][8][9][10] The amount of astigmatism reduction achieved by LRIs during cataract surgery is of the same magnitude, [11][12][13] although Gills 14 believes that a correction up to 4.0 D is feasible. If OAIs and LRIs were equally effective, the extra incisions required by LRIs would not be warranted.…”

mentioning

confidence: 99%

Limbal relaxing incisions versus on-axis incisions to reduce corneal astigmatism at the time of cataract surgery

Kaufmann

Peter

Ooi

et al. 2005

Journal of Cataract and Refractive Surgery

143

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confidence: 99%

Limbal relaxing incisions versus on-axis incisions to reduce corneal astigmatism at the time of cataract surgery

Kaufmann

Peter

Ooi

et al. 2005

Journal of Cataract and Refractive Surgery

143

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Optimal incision sites to obtain an astigmatism-free cornea after cataract surgery with a 3.2 mm sutureless incision

Matsumoto

Hara

Chiba

et al. 2001

Journal of Cataract and Refractive Surgery

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The results indicate that to reduce astigmatism in eyes with preoperative astigmatism of 0.5 D or more, a limbal 3.2 mm BENT incision should be placed at 10:30 o'clock. To prevent astigmatism postoperatively, the incision should be placed at the steepest meridian in eyes with preoperative astigmatism greater than 0.5 D; for preoperative astigmatism greater than 1.2 D, a 3.2 mm incision at the corneal limbus is insufficient and a wider incision or an additional incision is required.

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Corneal Refractive Changes after Acrysof Lens versus PMMA Lens Implantation

Müller-Jensen

Barlinn²

2000

Ophthalmologica

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Purpose: Do foldable acrylic lenses yield not only reduced posterior capsular opacification but also significant refractive advantages? Patients and Methods: 147 cataract patients including 47 with spherical corneas and 100 with preoperative astigmatism of 0.8 ± 0.7 dpt were treated in one of two ways: 70 patients received 5.5-mm Acrysof lens implants through 3.2-mm outer and 4-mm inner temporal clear corneal openings (stretch incision); 77 patients received 5-mm PMMA lenses through temporal clear corneal incisions of 4.1-mm outer and 6.5-mm inner diameter incisions. Corneal topography was examined in all patients before the operations as well as 3 days and 6 months after the operations. Results: 6 months after the operations, we observed a surgically induced astigmatism of 0.4 ± 0.2 dpt for the 3.2-mm incisions compared to 0.8 ± 0.7 dpt for the 4.1-mm incisions; evaluation according to Holladay of the preoperative spherical corneas yielded a with-the-wound change of 0.0 ± 0.3 dpt after 3.2-mm incisions versus 0.6 ± 0.7 dpt after 4.1-mm incisions. The difference in astigmatism for the two types of incisions was statistically significant (p = 0.001). Conclusion: Acrysof lens implantation is especially useful for patients with spherical corneas because of avoidance of postoperative astigmatism. The 4.1-mm corneal incision using PMMA lens implants can be used on the steep meridian to reduce preoperative astigmatism.

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Astigmatismusreduktion durch 4 mm langen nahtfreien kornealen Starschnitt (Stretch-Inzision) mit Phakoemulsifikation und 5 mm PMMA-Linsen-Implantation

Cited by 3 publications

References 3 publications

Limbal relaxing incisions versus on-axis incisions to reduce corneal astigmatism at the time of cataract surgery

Limbal relaxing incisions versus on-axis incisions to reduce corneal astigmatism at the time of cataract surgery

Optimal incision sites to obtain an astigmatism-free cornea after cataract surgery with a 3.2 mm sutureless incision

Corneal Refractive Changes after Acrysof Lens versus PMMA Lens Implantation

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