Ultrasonic phacoemulsification using a 1.4 mm incision: Clinical results

Tsuneoka, Hiroshi; Shiba, Tadaaki; Takahashi, Yoko

doi:10.1016/s0886-3350(01)01235-4

Cited by 103 publications

(79 citation statements)

References 5 publications

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“…We have modified microsurgical instruments like the irrigating chopper and keratome to perform phaconit surgery through 0.9 mm incision and implant specially designed rollable IOL (thinopt X Rollable lens) through a 1.2-1.3 mm incision. Bimanual phacoaspiration and phacofragmentation achieved minimal phaco-power ranging from 5-30% (average 10-15%) as compared to standard phacoemulsification (30-50% phaco power) effective irrigation and aspiration time of 30-150 seconds, vacuum setting of 100-150mm Hg during fragment emulsification and 450 mmHg during cortical clean up similar to other studies [4][5][6][7][8]. The energy requirement and fluids can be monitored effectively with the help of advanced phacosystems [10] using burst mode technology, however we used basic Venturi system.…”

Section: Discussionsupporting

confidence: 78%

“…The energy requirement and fluids can be monitored effectively with the help of advanced phacosystems [10] using burst mode technology, however we used basic Venturi system. We had higher incidence of chamber instability and other intraoperative complications like minimal corneal burn (2.5% cases) as compared to other studies [3,[7][8][9][10]. In our view, this increased incidence was not due to smaller bore irrigating chopper and micro flow 0.9 mm phacotip but the initial learning curve, as intraoperative complications decreased in subsequent cases.…”

Section: Discussionmentioning

confidence: 47%

“…The submillimetric incision and bimanual phacoemulsification was the greatest modification of the concept of sleeveless phacoemulsification by other workers like Hara and Hara [2]. Until recently micro incision phaco was restricted to the incision size of 1.4-1.5 millimetre [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Comparison of Phaconit Rollable IOL with Acrylic Foldable IOL

Parihar

Vats²,

Bera

et al. 2007

Medical Journal Armed Forces India

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Section: Discussionsupporting

confidence: 78%

Section: Discussionmentioning

confidence: 47%

See 1 more Smart Citation

Comparison of Phaconit Rollable IOL with Acrylic Foldable IOL

Parihar

Vats²,

Bera

et al. 2007

Medical Journal Armed Forces India

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“…[1][2][3][4] In addition, surgery can be performed through incisions of 1.4 mm, [5][6] or even through a 0.9 mm incision, 1 hence inducing less postsurgery astigmatism than conventional coaxial phacoemulsification (CP). [5][6] It is well recognized that in CP, temporal clear corneal incisions (CCI) induce the least astigmatism. The ophthalmic literature estimates that the magnitude of surgically induced astigmatism (SIA) studied by vector analysis is around 0.44 D and 0.88 D, rising as the size of the incision increases.…”

Section: Introductionmentioning

confidence: 99%

Surgically induced astigmatism after biaxial phacoemulsification compared to coaxial phacoemulsification

Morcillo-Laiz

Zato

Muñoz‐Negrete

et al. 2008

Eye

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Purpose A comparison of the topographic astigmatism generated after coaxial phacoemulsification (CP) through temporal 2.8 mm incision and biaxial phacoemulsification (MICS) through superioroblique trapezoidal 1.5-2 mm incisions. Setting Centre for Visual Sciences (Instituto de Ciencias Visuales, INCIVI), Madrid, Spain Methods This prospective randomized clinical study included 94 eyes of 64 patients; 43 eyes were operated on through CP and 51 through MICS. Corneal topography was measured before operation, and subsequently after 1, 3, and 6 months. Additionally, a control group (C) of 55 eyes was created (performing two topographies on them); the change in astigmatism was calculated without having performed any surgical procedure. The astigmatic change in the three groups was measured through arithmetic, polar and vector analysis (Alpins method). Results In the vector analysis, results after the first month following surgery were: mean module of the surgically induced astigmatism (SIA) 0.49 ± 0.38 D in CP and 0.48 ± 0.37 D in MICS, while 0.31 ± 0.27 D in group C. Although no statistically significant differences were detected between the two surgical techniques, differences were noted when comparing group C with each of these techniques (Po0.05). The distribution of the SIA axes showed a slight tendency to be located more frequently at around 901 in CP, and at around 501 in MICS. Conclusions The mean module of SIA was similar in CP and in MICS, although the distribution of the direction of such a vector revealed minor differences.

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“…Sleeveless bimanual microincision cataract surgery (MICS), as reported by Alio, 1,2 Agarwal, 3,4 or Tsuneoka, 5,6 employs an irrigation chopper, a sleeveless tip, and the bimanual phaco technique, which is supposed to be safer and less invasive than the conventional coaxial phaco method. A 2004 survey by the American Society of Cataract and Refractive Surgery indicated that 40% of eye surgeons in the United States planned to use the bimanual microincision phaco technique.…”

Section: Introductionmentioning

confidence: 99%

Aberration-correcting effect of ThinOptX IOL

Ouchi

Kinoshita

2007

Eye

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Purpose To evaluate spherical aberration and visual function after microincision cataract surgery using the ThinOptX rollable intraocular lens. Design Prospective, comparative, and interventional case series. Methods: Setting Single-centre institutional practice. This prospective study evaluated 58 patients with cataracts who underwent bimanual microphaco cataract surgery in both eyes. A ThinOptX lens was introduced into one eye and an Alcon Acrysof lens, as a control, into the other. One month after cataract surgery, the corneal, whole-eye, and internal spherical aberration, and contrast sensitivity in both eyes were measured. We also measured the spherical aberration in artificial model eyes bearing Acrysof and ThinOptX lenses. Two-sided paired t-test was used for assessing all data. Results The root mean square (RMS) for both whole-eye and internal spherical aberrations was smaller in eyes bearing ThinOptX (P ¼ 0.03 and P ¼ 0.07, respectively). Although there was no statistically significant difference in the RMS for internal spherical aberration between ThinOptX-and Acrysof-bearing eyes, according to the Zernike polynomial expansion, all human and model eyes bearing ThinOptX registered negative internal spherical aberration in Z(4,0) and Z(6,0). On the other hand, all human and model eyes bearing Acrysof registered positive internal spherical aberration in Z(4,0) and Z(6,0). The ThinOptX lens yielded slightly higher contrast sensitivity in all cycles. Conclusion As the ThinOptX lens is designed for negative spherical aberration, we encountered smaller whole spherical aberrations and higher contrast sensitivity than with the Acrysof lens. The implantation of ThinOptX IOL after microincision cataract surgery yielded good visual function.

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Ultrasonic phacoemulsification using a 1.4 mm incision: Clinical results

Abstract: A sleeveless phaco tip was used to perform successful bimanual phacoemulsification using conventional phaco machines and familiar surgical techniques. The cataracts were safely removed through an incision of 1.4 mm or smaller that was widened for IOL insertion.

Cited by 103 publications

References 5 publications

Comparison of Phaconit Rollable IOL with Acrylic Foldable IOL

Comparison of Phaconit Rollable IOL with Acrylic Foldable IOL

Surgically induced astigmatism after biaxial phacoemulsification compared to coaxial phacoemulsification

Aberration-correcting effect of ThinOptX IOL

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