Toric iols designed to correct astigmatism in cataract surgery

Author

Tawfiq, Mustafa

Source

Journal of Babylon University : Journal of Applied and Pure Sciences

Issue

Vol. 22, Issue 5 (31 Oct. 2014), pp.1679-1685, 7 p.

Publisher

University of Babylon

Publication Date

2014-10-31

Country of Publication

Iraq

No. of Pages

7

Main Subjects

Medicine

Topics

Abstract AR

Purpose: To evaluate the refractive and visual outcome of toric IOL implantation for correction of pre-existing corneal astigmatism in cataract surgery.

Materials and methods: In this retrospective study, 56 eyes of 30 patients who underwent implantation of toric IOL following regular phacoemulsification were divided into two groups based on the types of toric IOL implanted: group 1 patients received Acrysof toric (Alcon) and group 2 patients received AT-Torbi (Zeiss Meditech) IOLs.

Pre-and post-operative corneal and refractive astigmatisms, and postoperative distance vision were investigated.

Statistical analysis was carried out using the paired student t-test when necessary.

Factors affecting the success of toric IOL implantation are discussed and recommendations are made to optimize the outcome.

Results: The mean age of all patients was 75.56 ± 9.87 years.

No statistical difference was observed between pre-and post-operative corneal astigmatism (p =0.819).

Postoperative refractive astigmatism was significantly less in both groups (group 1: p = 0.0014; group 2: p=<0.00001).

The best-corrected distance visual acuity was 6/12 or better in 95 % of group 1 and 100 % of group 2 patients.

Conclusion: Toric IOL implantation is a viable and highly predictable method of correcting the corneal astigmatism.

It allows correction without compromising the integrity of the cornea.

Careful selection of the patient, accurate keratometry and precise alignment of the cylindrical axes are some of the factors to be considered for a superior outcome.

Abstract EN

Purpose : To evaluate the refractive and visual outcome of toric IOL implantation for correction of pre-existing corneal astigmatism in cataract surgery.

Materials and methods: In this retrospective study, 56 eyes of 30 patients who underwent implantation of toric IOL following regular phacoemulsification were divided into two groups based on the types of toric IOL implanted : group 1 patients received Acrysof toric (Alcon) and group 2 patients received AT-Torbi (Zeiss Meditech) IOLs.

Pre-and post-operative corneal and refractive astigmatisms, and postoperative distance vision were investigated.

Statistical analysis was carried out using the paired student t-test when necessary.

Factors affecting the success of toric IOL implantation are discussed and recommendations are made to optimize the outcome.

Results : The mean age of all patients was 75.56 ± 9.87 years.

No statistical difference was observed between pre-and post-operative corneal astigmatism (p = 0.819).

Postoperative refractive astigmatism was significantly less in both groups (group 1: p = 0.0014; group 2: p = < 0.00001).

The best-corrected distance visual acuity was 6/12 or better in 95 % of group 1 and 100 % of group 2 patients.

Conclusion : Toric IOL implantation is a viable and highly predictable method of correcting the corneal astigmatism.

It allows correction without compromising the integrity of the cornea.

Careful selection of the patient, accurate keratometry and precise alignment of the cylindrical axes are some of the factors to be considered for a superior outcome.

American Psychological Association (APA)

Tawfiq, Mustafa. 2014. Toric iols designed to correct astigmatism in cataract surgery. Journal of Babylon University : Journal of Applied and Pure Sciences،Vol. 22, no. 5, pp.1679-1685.
https://search.emarefa.net/detail/BIM-374517

Modern Language Association (MLA)

Tawfiq, Mustafa. Toric iols designed to correct astigmatism in cataract surgery. Journal of Babylon University : Journal of Applied and Pure Sciences Vol. 22, no. 5 (2014), pp.1679-1685.
https://search.emarefa.net/detail/BIM-374517

American Medical Association (AMA)

Tawfiq, Mustafa. Toric iols designed to correct astigmatism in cataract surgery. Journal of Babylon University : Journal of Applied and Pure Sciences. 2014. Vol. 22, no. 5, pp.1679-1685.
https://search.emarefa.net/detail/BIM-374517

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references : p. 1685

Record ID

BIM-374517