Fourier-domain optical coherence tomography evaluation of clear corneal incision structure according to blade material

Hun Lee; Eung Kweon Kim; Hong Seok Kim; Tae Im Kim

doi:10.1016/j.jcrs.2014.01.036

Fourier-domain optical coherence tomography evaluation of clear corneal incision structure according to blade material

Hun Lee, Eung Kweon Kim, Hong Seok Kim, Tae Im Kim

Department of Ophthalmology

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Purpose: To use Fourier-domain optical coherence tomography (OCT) to evaluate the wound characteristics of clear corneal incisions (CCIs) created with a metal or diamond blade in cataract surgery.

Design: Prospective comparative observational study.

Methods: Patients who had cataract surgery were randomized into 2 groups based on whether a metal blade (Group 1, 37 eyes) or diamond blade (Group 2, 33 eyes) was used to create a 2.8 mm temporal CCI. One day, 1 week, and 1 month postoperatively, structural characteristics of the CCI were analyzed using RTVue-100 Fourier-domain OCT. Parameters included incision angle, corneal thickness, epithelial or endothelial gaps, and Descemet membrane detachment. Visual acuity, surgically induced astigmatism (SIA), and ocular aberrations were evaluated.

Results: There was a significant difference in corneal thickness at the 1.0 mm temporal side from midpoint. The mean uncorrected distance visual acuity in Group 2 (33 eyes) improved significantly over time. In both groups, corneal thickness at the midpoint, 1.0 mm temporal side, and 1.0 mm nasal side from the midpoint of the incision significantly decreased over time. At all timepoints, temporal and nasal thickness in Group 2 was significantly greater than in Group 1 (37 eyes), with the exception of temporal thickness at 1 month. In both groups, wound healing was reliable over time. There were no significant between-group differences in SIA or changes in aberrations.

Conclusions: Corneal thickness at the incision site showed a significant difference between the 2 groups. Both groups achieved structural stabilization.

Financial Disclosure: No author has a financial or proprietary interest in any material or method mentioned.

Original language	English
Pages (from-to)	1615-1624
Number of pages	10
Journal	Journal of cataract and refractive surgery
Volume	40
Issue number	10
DOIs	https://doi.org/10.1016/j.jcrs.2014.01.036
Publication status	Published - 2014 Oct 1

Bibliographical note

Funding Information:
Partially supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST No. 2013R1A1A2058907 ) and by the Converging Research Center Program through the Ministry of Science , ICT and Future Planning , Korea ( 2013K000365 ).

Publisher Copyright:
© 2014 ASCRS and ESCRS. Setting: Department of Ophthalmology, Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea.

All Science Journal Classification (ASJC) codes

Surgery
Ophthalmology
Sensory Systems

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title = "Fourier-domain optical coherence tomography evaluation of clear corneal incision structure according to blade material",

abstract = "Purpose: To use Fourier-domain optical coherence tomography (OCT) to evaluate the wound characteristics of clear corneal incisions (CCIs) created with a metal or diamond blade in cataract surgery.Design: Prospective comparative observational study.Methods: Patients who had cataract surgery were randomized into 2 groups based on whether a metal blade (Group 1, 37 eyes) or diamond blade (Group 2, 33 eyes) was used to create a 2.8 mm temporal CCI. One day, 1 week, and 1 month postoperatively, structural characteristics of the CCI were analyzed using RTVue-100 Fourier-domain OCT. Parameters included incision angle, corneal thickness, epithelial or endothelial gaps, and Descemet membrane detachment. Visual acuity, surgically induced astigmatism (SIA), and ocular aberrations were evaluated.Results: There was a significant difference in corneal thickness at the 1.0 mm temporal side from midpoint. The mean uncorrected distance visual acuity in Group 2 (33 eyes) improved significantly over time. In both groups, corneal thickness at the midpoint, 1.0 mm temporal side, and 1.0 mm nasal side from the midpoint of the incision significantly decreased over time. At all timepoints, temporal and nasal thickness in Group 2 was significantly greater than in Group 1 (37 eyes), with the exception of temporal thickness at 1 month. In both groups, wound healing was reliable over time. There were no significant between-group differences in SIA or changes in aberrations.Conclusions: Corneal thickness at the incision site showed a significant difference between the 2 groups. Both groups achieved structural stabilization.Financial Disclosure: No author has a financial or proprietary interest in any material or method mentioned.",

author = "Hun Lee and Kim, {Eung Kweon} and Kim, {Hong Seok} and Kim, {Tae Im}",

note = "Funding Information: Partially supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST No. 2013R1A1A2058907 ) and by the Converging Research Center Program through the Ministry of Science , ICT and Future Planning , Korea ( 2013K000365 ). Publisher Copyright: {\textcopyright} 2014 ASCRS and ESCRS. Setting: Department of Ophthalmology, Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea.",

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doi = "10.1016/j.jcrs.2014.01.036",

language = "English",

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journal = "Journal of Cataract and Refractive Surgery",

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T1 - Fourier-domain optical coherence tomography evaluation of clear corneal incision structure according to blade material

AU - Lee, Hun

AU - Kim, Eung Kweon

AU - Kim, Hong Seok

AU - Kim, Tae Im

N1 - Funding Information: Partially supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST No. 2013R1A1A2058907 ) and by the Converging Research Center Program through the Ministry of Science , ICT and Future Planning , Korea ( 2013K000365 ). Publisher Copyright: © 2014 ASCRS and ESCRS. Setting: Department of Ophthalmology, Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea.

PY - 2014/10/1

Y1 - 2014/10/1

N2 - Purpose: To use Fourier-domain optical coherence tomography (OCT) to evaluate the wound characteristics of clear corneal incisions (CCIs) created with a metal or diamond blade in cataract surgery.Design: Prospective comparative observational study.Methods: Patients who had cataract surgery were randomized into 2 groups based on whether a metal blade (Group 1, 37 eyes) or diamond blade (Group 2, 33 eyes) was used to create a 2.8 mm temporal CCI. One day, 1 week, and 1 month postoperatively, structural characteristics of the CCI were analyzed using RTVue-100 Fourier-domain OCT. Parameters included incision angle, corneal thickness, epithelial or endothelial gaps, and Descemet membrane detachment. Visual acuity, surgically induced astigmatism (SIA), and ocular aberrations were evaluated.Results: There was a significant difference in corneal thickness at the 1.0 mm temporal side from midpoint. The mean uncorrected distance visual acuity in Group 2 (33 eyes) improved significantly over time. In both groups, corneal thickness at the midpoint, 1.0 mm temporal side, and 1.0 mm nasal side from the midpoint of the incision significantly decreased over time. At all timepoints, temporal and nasal thickness in Group 2 was significantly greater than in Group 1 (37 eyes), with the exception of temporal thickness at 1 month. In both groups, wound healing was reliable over time. There were no significant between-group differences in SIA or changes in aberrations.Conclusions: Corneal thickness at the incision site showed a significant difference between the 2 groups. Both groups achieved structural stabilization.Financial Disclosure: No author has a financial or proprietary interest in any material or method mentioned.

AB - Purpose: To use Fourier-domain optical coherence tomography (OCT) to evaluate the wound characteristics of clear corneal incisions (CCIs) created with a metal or diamond blade in cataract surgery.Design: Prospective comparative observational study.Methods: Patients who had cataract surgery were randomized into 2 groups based on whether a metal blade (Group 1, 37 eyes) or diamond blade (Group 2, 33 eyes) was used to create a 2.8 mm temporal CCI. One day, 1 week, and 1 month postoperatively, structural characteristics of the CCI were analyzed using RTVue-100 Fourier-domain OCT. Parameters included incision angle, corneal thickness, epithelial or endothelial gaps, and Descemet membrane detachment. Visual acuity, surgically induced astigmatism (SIA), and ocular aberrations were evaluated.Results: There was a significant difference in corneal thickness at the 1.0 mm temporal side from midpoint. The mean uncorrected distance visual acuity in Group 2 (33 eyes) improved significantly over time. In both groups, corneal thickness at the midpoint, 1.0 mm temporal side, and 1.0 mm nasal side from the midpoint of the incision significantly decreased over time. At all timepoints, temporal and nasal thickness in Group 2 was significantly greater than in Group 1 (37 eyes), with the exception of temporal thickness at 1 month. In both groups, wound healing was reliable over time. There were no significant between-group differences in SIA or changes in aberrations.Conclusions: Corneal thickness at the incision site showed a significant difference between the 2 groups. Both groups achieved structural stabilization.Financial Disclosure: No author has a financial or proprietary interest in any material or method mentioned.

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DO - 10.1016/j.jcrs.2014.01.036

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JO - Journal of Cataract and Refractive Surgery

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SN - 0886-3350

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Fourier-domain optical coherence tomography evaluation of clear corneal incision structure according to blade material

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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