Limbal Relaxing Incisions versus Penetrating Limbal Relaxing Incisions for the Management of Astigmatism in Cataract Surgery

Hosny, Mohamed; Azzam, Sarah; Oweis, Wael

doi:10.15406/aovs.2015.02.00062

AOVS

2015

DOI: 10.15406/aovs.2015.02.00062

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Limbal Relaxing Incisions versus Penetrating Limbal Relaxing Incisions for the Management of Astigmatism in Cataract Surgery

Mohamed Hosny

Sarah Azzam

Wael Oweis

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Cited by 2 publications

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“…Важно отметить ограниченность метода при высоких степенях астигматизма. Обоснованным считается проведение Фемто-АК у пациентов с астигматизмом до 3,5 дптр [26,27]. При большей степени астигматизма многие исследователи рекомендуют использовать Фемто-АК для уменьшения его степени либо применять другие методы коррекции.…”

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Femtolaser Assisted Cataract Surgeryand Toric Lenses in Patients with Astigmatism. Review

Kulikova

Timofeeva

2020

Oftalʹmologiâ

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The presence of concomitant corneal astigmatism is the most common cause of low visual functions in patients with surgical treatment of cataracts. The implantation of toric intraocular lenses is procedure of choice in the correction of corneal astigmatism from 1.0 DPT and more in patients with cataracts. Successful results depend on several factors, the most important of which: the correct and stable position of the intraocular lens (IOL) in the capsule bag, the absence of residual astigmatism, the choice of the implanted IOL’s model, taking into account material and design of lens elements. Deviation of the cylindrical component by 10 degrees reduces visual acuity up to 35 %. Repeated intervention for the purpose of toric lens reposition, according to the literature, varies from 0,65 to 9 % and is carried out with the rotation of IOL more than 10°. Femtolaser-assisted phacoemulsification allows partially automate the surgical process, making it more efficient and safe, creating a theoretical advantage over manual techniques of surgery. In practice, the capsulorexis formed by the femtolaser is characterized by a regular rounded shape with a given diameter and provides a coating of optical part of IOL for 360°, which, according to various sources, contributes to a lesser degree of decentralization and tilt of the lens in the capsule bag and can be considered as one of the reasons for obtaining a more accurate refractive result and, as a consequence, higher visual functions. The review presents the results of clinical studies of corneal astigmatism correction during standard and femtolaser-assisted phacoemulsification with implantation of various models of toric IOLs: visual acuity, rotational stability, residual astigmatism percentage, wave front change. Researchers continue to discuss the advantages and disadvantages of modern technologies. However, the problem of increasing the predictability of the surgical outcome in order to obtain a higher refractive result both in the early and in the long-term postoperative period remains unquestionable.

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unclassified

Femtolaser Assisted Cataract Surgeryand Toric Lenses in Patients with Astigmatism. Review

Kulikova

Timofeeva

2020

Oftalʹmologiâ

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Surgically Induced Astigmatism After Phacoemulsification with Clear Corneal 2.75 mm Incision Using Superior Approach

Amita

Djunaedi

Doniho

et al. 2021

Nigerian Journal of Ophthalmology

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Context: Optimal postoperative vision can be achieved through a low surgically induced astigmatism (SIA), which is closely related to the site of incisions. Studies showed that temporal incision gives low SIA. However, a temporal incision is not convenient for some surgeons and in a small operating room with a limited number of assistants. These limitations can be overcome by using a superior approach. Aims: The aim of the study was to evaluate SIA after phacoemulsification with clear corneal incision using superior approach in different kinds of astigmatism as an alternative site of incision. Settings and Design: Medical records of patients who underwent cataract surgery were collected retrospectively between April and August 2017. Appropriate statistical analyses using Kruskal–Wallis, analysis of variance (ANOVA), Games-Howell test were done to assess the effect of superior approach on corneal curvature and whether it varies between different kinds of astigmatism. Results: Kruskal-Wallis test shows that there was no significant postoperative power change across different astigmatism groups (χ 2 (2) = 0.805, P = 0.669). ANOVA and Games-Howell test show that oblique astigmatism had higher changes to its curvature compared with against the rule or with the rule astigmatism. Conclusions: The average SIA from the study was 0.34 diopter. Our study concludes that there is no statistically significant difference to SIA between three groups of astigmatism when they were operated using superior approach.

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Limbal Relaxing Incisions versus Penetrating Limbal Relaxing Incisions for the Management of Astigmatism in Cataract Surgery

Cited by 2 publications

References 14 publications

Femtolaser Assisted Cataract Surgeryand Toric Lenses in Patients with Astigmatism. Review

Femtolaser Assisted Cataract Surgeryand Toric Lenses in Patients with Astigmatism. Review

Surgically Induced Astigmatism After Phacoemulsification with Clear Corneal 2.75 mm Incision Using Superior Approach

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