Direct Measurement of the Ciliary Sulcus Diameter by 35-Megahertz Ultrasound Biomicroscopy

Oh, Jaeryung; Shin, Hyung Ho; Kim, Jun Heon; Kim, Hyo Myung; Song, Jong Suk

doi:10.1016/j.ophtha.2006.12.018

Cited by 106 publications

(97 citation statements)

References 20 publications

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“…They found a trend toward the horizontal meridian being the largest, but they also found high variation. Oh et al 18 also found a vertical oval posterior chamber in 28 phakic eyes using 35 MHz UBM.…”

Section: Discussionmentioning

confidence: 87%

“…Several studies [15][16][17][18][19] have evaluated the relationship between WTW and STS diameters in an effort to select adequately sized posterior phakic IOLs. Using different devices to measure the STS and the WTW, they showed a weak correlation (r Z 0.406 to r Z 0.597) between these 2 values.…”

Section: Discussionmentioning

confidence: 99%

“…Surprisingly, to our knowledge, no data on the STS diameter in pseudophakic patients have been published. In contrast, many studies [15][16][17][18][19][20][21] report the sulcus anatomy in young phakic patients with the goal of optimizing the sizing and vault of posterior chamber phakic IOLs. Other studies 22,23 report the sulcus anatomy in aphakic eyes with a scleral-fixated IOL to evaluate and optimize the IOL position.…”

Section: J Cataract Refract Surg 2012; 38:986-991 Q 2012 Ascrs and Escrsmentioning

confidence: 99%

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Sulcus anatomy and diameter in pseudophakic eyes and correlation with biometric data: Evaluation with a 50 MHz ultrasound biomicroscope

Petermeier¹,

Suesskind²,

Altpeter³

et al. 2012

Journal of Cataract and Refractive Surgery

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DESIGN: Case series. METHODS:In pseudophakic eyes, the axial length (AL) and horizontal WTW were measured by the IOLMaster device. Cross-sectional images were obtained with a 50 MHz ultrasound biomicroscope on the 4 meridians: vertical, horizontal (180 degrees), temporal oblique, and nasal oblique. Sulcusto-sulcus (STS), angle-to-angle (ATA), and sclera-to-sclera (ScTSc) diameters were measured. The IOL optic diameter (6.0 mm) served as a control. To test reliability, optic measurements were repeated 5 times in a subset of eyes. RESULTS:The vertical ATA and STS diameters were statistically significantly larger than the horizontal diameter (PZ.0328 and PZ.0216, respectively). There was no statistically significant difference in ScTSc diameters. A weak correlation was found between WTW and horizontal ATA (r Z 0.5766, P<.0001) and between WTW and horizontal STS (r Z 0.5040, PZ.0002). No correlation was found between WTW and horizontal ScTSc (r Z 0.2217, PZ.1217). CONCLUSIONS:The sulcus anatomy had a vertical oval shape with the vertical meridian being the largest, but it also had variation in the direction of the largest meridian. The WTW measurements showed a weak correlation with STS. In pseudophakic eyes, Soemmerring ring or a bulky haptic may affect the ciliary sulcus anatomy.

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Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Section: J Cataract Refract Surg 2012; 38:986-991 Q 2012 Ascrs and Escrsmentioning

confidence: 99%

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Sulcus anatomy and diameter in pseudophakic eyes and correlation with biometric data: Evaluation with a 50 MHz ultrasound biomicroscope

Petermeier¹,

Suesskind²,

Altpeter³

et al. 2012

Journal of Cataract and Refractive Surgery

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“…[4][5][6][7][8][9][10][11][12] Despite efforts to improve predictability of vault following ICL implantation, it remains poor; the reasons for this are multiple. 5,[13][14][15][16][17][18][19][20][21][22][23] High-frequency ultrasound biomicroscopy (UBM) with a wide scanning field has enabled direct measurement of horizontal sulcus-to-sulcus (STS) diameter. Poor correspondence (г<0.50) between the horizontal WTW and STS measure has since been reported, however the width of the limits of agreement (LoA) reported between horizontal WTW and STS measures is similar to repeatability limits of STS estimates.…”

Section: Introductionmentioning

confidence: 99%

“…Poor correspondence (г<0.50) between the horizontal WTW and STS measure has since been reported, however the width of the limits of agreement (LoA) reported between horizontal WTW and STS measures is similar to repeatability limits of STS estimates. UBM devices have relatively low precision in STS estimates (coefficient of variation (CoV): Artemis NA; HiScan 0.9-2.7% 16,24 ; VuMax 5% 25 ) as compared to horizontal WTW measures of Scheimpflug imaging or partial low-coherence inferometry (CoV: Orbscan 0.7%-1% 24 ; Galilei Sirius <0.5% 26,27 ; IOLMaster 2% 28 ; Lenstar 0.2% 23 ). For example, Yokoyama et al have reported the within subject repeatability (S w ) of the Vumax UBM device to be approximately 0.53mm (confidence interval (CI) of repeatability -1.1mm, 1.5mm).…”

Section: Introductionmentioning

confidence: 99%

Correcting Interdevice Bias of Horizontal White-to-White and Sulcus-to-Sulcus Measures Used for Implantable Collamer Lens Sizing

Guber

Bergin

Perritaz

et al. 2016

American Journal of Ophthalmology

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PURPOSE:To assess the agreement and repeatability of horizontal white-to-white (WTW) and horizontal sulcus-to-sulcus (STS) diameter measurements and use this data in combination with available literature to correct for inter-device bias in pre-operative implantable collamer lens (ICL) size selection. DESIGN: Inter-instrument reliability and bias assessment study. METHODS: A total of 107 eyes from 56 patients assessed for ICL implantation at our institution were included in the study. This was a consecutive series of all patients with suitable available data. The agreement and bias between WTW (measured with the Pentacam and BioGraph devices) and STS (measured with the HiScan device) were estimated. RESULTS: The mean spherical equivalent was -8.93D ± 5.69D. The BioGraph measures of WTW were wider than those taken with the Pentacam (bias= 0.26 mm, p<0.01), and both horizontal WTW measures were wider than the horizontal STS measures (bias >0.91 mm, p<0.01). The repeatability (Sr) of STS measured with the HiScan was 0.39 mm, which was significantly reduced (Sr=0.15 mm) when the average of two measures were used. Agreement between the horizontal WTW measures and horizontal STS estimates when bias was accounted for was г=0.54 with the Pentacam and г=0.64 with the BioGraph. CONCLUSIONS: Large inter-device bias was observed for WTW and STS measures. STS measures demonstrated poor repeatability, but the average of repeated measures significantly improved repeatability. In order to conform to the Federal Drug Administration's accepted guidelines for ICL sizing clinicians should be aware of and account for the inconsistencies between devices.3

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Phake Intraokularlinsen

Steinwender

Kook²,

Kohnen

2023

Refraktive Chirurgie

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Direct Measurement of the Ciliary Sulcus Diameter by 35-Megahertz Ultrasound Biomicroscopy

Cited by 106 publications

References 20 publications

Sulcus anatomy and diameter in pseudophakic eyes and correlation with biometric data: Evaluation with a 50 MHz ultrasound biomicroscope

Sulcus anatomy and diameter in pseudophakic eyes and correlation with biometric data: Evaluation with a 50 MHz ultrasound biomicroscope

Correcting Interdevice Bias of Horizontal White-to-White and Sulcus-to-Sulcus Measures Used for Implantable Collamer Lens Sizing

Phake Intraokularlinsen

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