Accuracy of Toric Intraocular Lens Axis Alignment Using Manual Slit Lamp Method and CALLISTO Eye Image-Guided System

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dc.contributor.authorRiyanto, S. Ben_US
dc.contributor.authorRatna Sari, D. Cen_US
dc.contributor.authorGondhowiardjo, T. Den_US
dc.contributor.authorSuhardjoen_US
dc.contributor.authorSasongko, M. B.en_US
dc.date.accessioned2023-07-14T07:02:00Z
dc.date.available2023-07-14T07:02:00Z
dc.date.issued2022-02
dc.description.abstractAims: Image-guided systems are the gold standard for determining toric intraocular lens (IOL) axis alignment. However, their high cost prevents widespread use of these systems. As an alternative, a simpler and affordable method could be performed manually using a slit-lamp biomicroscope. This study aims to compare the accuracy of manual toric IOL axis marking using a slit-lamp compared to the CALLISTO eye image-guided system.Study Design: Prospective comparativeMethods: In this prospective study, toric IOL axis alignment of 42 eyes with cataract and coexisting corneal astigmatism were evaluated using manual slitlamp method and CALLISTO eye image-guided method. Preoperative and postoperative uncorrected visual acuity, best corrected visual acuity, amount of spherical and astigmatic refractive errors, and postoperative IOL axis alignment were evaluated. Intraclass correlation of the manual method was calculated and the difference of IOL axis alignment to the image-guided method was compared.Results: Toric IOL implantation reduced the amount of astigmatic refractive error from -1.63 � 0.65 D to -0.50 � 0.19 D in the image-guided group and from -1.93 � -0.90 D to -0.87 � 0.26 D in the manual slitlamp group. As many as 90.5% of eyes in the image-guided group and 81.0% of eyes in the manual slitlamp group reached the target induced astigmatism (p=0.38). Manual axis marking showed intraclass correlation of 99.3%. However, when the manual method was compared to the image-guided method a mean difference in axis alignment of 10.98o (95% confidence interval: 9.32o - 12.63o) was observed.Conclusions: Alignment of toric IOL axis using the manual method demonstrated a consistent result; yet producing a considerable difference to the result of the image-guided method.en_US
dc.identifier.affiliationsJEC Hospitalsand Clinics Jakarta, Indonesiaen_US
dc.identifier.affiliationsDepartment of Ophthalmology, Faculty of Medicine Public Health and Nursing, Universitas Gadjah Mada -Sardjito Eye Center, Dr. Sardjito General Hospital, Yogyakarta, Indonesiaen_US
dc.identifier.affiliationsDepartment of Anatomy, Faculty of Medicine Public Health and Nursing, Universitas Gadjah Mada, Indonesia.en_US
dc.identifier.citationRiyanto S. B, Ratna Sari D. C, Gondhowiardjo T. D, Suhardjo, Sasongko M. B.. Accuracy of Toric Intraocular Lens Axis Alignment Using Manual Slit Lamp Method and CALLISTO Eye Image-Guided System. Ophthalmology Research: An International Journal. 2022 Feb; 16(1): 33-39en_US
dc.identifier.issn2321�27
dc.identifier.placeIndiaen_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/218415
dc.languageenen_US
dc.publisherSciencedomain Internationalen_US
dc.relation.issuenumber1en_US
dc.relation.volume16en_US
dc.source.urihttps://doi.org/10.9734/or/2022/v16i130227en_US
dc.subjectAstigmatismen_US
dc.subjectaxis alignmenten_US
dc.subjectimage-guided methoden_US
dc.subjectmanual slit-lamp methoden_US
dc.subjecttoric intraocular lensen_US
dc.titleAccuracy of Toric Intraocular Lens Axis Alignment Using Manual Slit Lamp Method and CALLISTO Eye Image-Guided Systemen_US
dc.typeJournal Articleen_US
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