Opposite clear corneal incisions on the steep meridian in phacoemulsification

Tadros, Athanassius; Habib, Maged; Tejwani, Deepak; Lany, H von; Thomas, Peter

doi:10.1016/s0886-3350(03)00649-7

Cited by 31 publications

(36 citation statements)

References 15 publications

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“…Tadros et al (25) found that the astigmatic effect of superior, temporal, and oblique OCCI incisions showed no statistical difference, though a slightly higher SIA was detected in the case of superior incisions. In our study, the rate of induced astigmatism is independent of the location of the incision in the OCCI method.…”

Section: Discussionmentioning

confidence: 96%

Paired opposite Clear Corneal Incision: Time-Related Changes of its Effect and Factors on which those Changes Depend

Németh

Kolozsvári

Berta

et al. 2014

European Journal of Ophthalmology

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Purpose To assess astigmatism induced by paired opposite clear corneal incision (OCCI) compared to single incisions and to investigate factors on which its effect depends. Methods The study comprised 326 eyes from 326 patients. In patients with <1.0 D corneal astigmatism, clear corneal incision was performed (CC group, n = 245), and in those with >1.0 D preoperative corneal astigmatism, a second, opposite clear corneal incision was made (OCCI group, n = 81). Both groups consisted of superior, temporal, and oblique subgroups according to the steepest meridian. Prior to the surgery, and after surgery, repeated keratometry was performed and surgically induced astigmatism (SIA) was calculated using vector analysis. Results Two weeks after the surgery, the SIA was 0.67 ± 0.44 D in the CC group and 1.15 ± 0.65 D in the OCCI group; 9 weeks after the operation, it was 0.61 ± 0.43 D in the CC group and 0.99 ± 0.57 D in the OCCI group (p<0.001). The SIA showed no significant postoperative change in our groups. Conclusions Opposite clear corneal incision reliably induces about 1.0 D of corneal astigmatism on the steep meridian in proportion to the rate of preoperative astigmatism. Its magnitude is independent of the location of the incisions and its effect remains unchanged during the postoperative period.

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Section: Discussionmentioning

confidence: 96%

Paired opposite Clear Corneal Incision: Time-Related Changes of its Effect and Factors on which those Changes Depend

Németh

Kolozsvári

Berta

et al. 2014

European Journal of Ophthalmology

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“…3 OCCIs have an enhanced effect 3 and are self-sealing. WTR astigmatism induced by temporal CCI in cases with nil pre existing astigmatism is minimal 22 usually about 0.25-0.75 D hence only small superior CCI of 2.2 mm is sufficient to tackle it. The mean surgically induced astigmatism in patients with smaller incisions was significantly less than in patients with 3.0-mm incisions.…”

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confidence: 99%

Evaluation of Opposite Clear Corneal Incision in Controlling Astigmatism in Cataract Patients Undergoing Phacoemulsification Surgery

Bhalla¹

2016

DJO

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“…17,18 Performing an additional CCI opposite the first CCI to enhance the flattening effect has been reported. [19][20][21][22] This method is called paired opposite clear corneal incisions (OCCIs). We performed a comparative evaluation of surgically induced astigmatism between 3.2 mm OCCI and CCI in cataract patients.…”

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confidence: 99%

Corneal astigmatism correction with opposite clear corneal incisions or single clear corneal incision: Comparative analysis

Khokhar

Lohiya

Murugiesan

et al. 2006

Journal of Cataract and Refractive Surgery

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Opposite clear corneal incisions on the steep meridian in phacoemulsification

Abstract: Results indicate that on-axis OCCIs are a reliable and practical way of reducing preexisting corneal astigmatism. The change in SE was negligible and thus can be ignored during biometry.

Cited by 31 publications

References 15 publications

Paired opposite Clear Corneal Incision: Time-Related Changes of its Effect and Factors on which those Changes Depend

Paired opposite Clear Corneal Incision: Time-Related Changes of its Effect and Factors on which those Changes Depend

Evaluation of Opposite Clear Corneal Incision in Controlling Astigmatism in Cataract Patients Undergoing Phacoemulsification Surgery

Corneal astigmatism correction with opposite clear corneal incisions or single clear corneal incision: Comparative analysis

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