Microphacoemulsification with WhiteStar

Soscia, William; Howard, J. G.; Olson, Randall J.

doi:10.1016/s0886-3350(02)01276-2

Cited by 85 publications

(49 citation statements)

References 13 publications

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“…This technique has several advantages, including improved fluid dynamics, associated with enhanced manoeuvrability; eg, the ability to interchange the irrigation and aspiration tips. [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.…”

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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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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“…The main intra-operative concern is corneal wound burns [1][2][3][4][5] resulting from friction between the corneal tissue wound site, the silicone sleeve and the phaco needle.…”

Section: Introductionmentioning

confidence: 99%

Fluid Temperature at the Corneal Endothelium during Phacoemulsification: Comparison of an Ophthalmic Viscosurgical Device and Balanced Salt Solution Using the Finite Element Method

Reepolmaha

Limtrakarn²,

Uthaisang-Tanechpongtamb³

et al. 2009

Ophthalmic Res

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Purpose: The purpose of this study was to estimate and compare the temperatures of two different anterior chamber solutions at the corneal endothelial level during phacoemulsification. An ophthalmic viscosurgical device (OVD) and balanced salt solution (BSS) were compared using the finite element method (FEM). Materials and Methods: The thermal properties of an OVD (IAL-F) and BSS were studied in an experimental setting. A computer-aided design model of ocular anatomy was created in two dimensions. The phaco needle was considered to be the only source of heat generation. Then, the FEM was used to demonstrate the transient temperature distribution in the two ocular models at 10, 20, 30, 40, 50 and 60 s. In these models, the anterior chamber was filled with IAL-F (IAL-F model) or BSS (BSS model). Results: The heat generation rate of the phaco needle was 0.0004 cal/s/mm². The maximum corneal endothelial temperatures for the two models at 60 s were 52.67 and 41.57°C, respectively. The experimental IAL-F model showed fewer changes in temperature for any given time and location. At larger distances from the heat source, less temperature variation was detected. Conclusion: Phacoemulsification is a potential heat-generating procedure performed between the delicate anterior chamber structures. During this procedure, IAL-F protects the endothelium against heat better than BSS.

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“…미세각막절개 백내장 수술은 phakonit 6,7 , bimanual phacoemulsification [8][9][10][11] , microphaco 12 Table 1). Table 3).…”

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Clinical Outcomes After Microincision Cataract Surgery and In-the-bag Implantation of a New Intraocular Lens

Shin

Lee

et al. 2010

J Korean Ophthalmol Soc

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Microphacoemulsification with WhiteStar

Cited by 85 publications

References 13 publications

Surgically induced astigmatism after biaxial phacoemulsification compared to coaxial phacoemulsification

Surgically induced astigmatism after biaxial phacoemulsification compared to coaxial phacoemulsification

Fluid Temperature at the Corneal Endothelium during Phacoemulsification: Comparison of an Ophthalmic Viscosurgical Device and Balanced Salt Solution Using the Finite Element Method

Clinical Outcomes After Microincision Cataract Surgery and In-the-bag Implantation of a New Intraocular Lens

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