Comparison of Postoperative Refractive Outcomes: IOLMaster
            <sup>®</sup>
            Versus Immersion Ultrasound

Whang, Woong Joo; Jung, Byung Ju; Oh, Tae Hoon; Byun, Yong-Soo; Joo, Choun Ki

doi:10.3928/15428877-20120726-03

Cited by 9 publications

(6 citation statements)

References 21 publications

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“…The AL has been measured using optical biometry and/or ultrasonography [ 1 – 7 ]. Optical biometry is the more accurate method for these measurements [ 8 ]. IOL Master (version 5; Carl Zeiss, Jena, Germany), an optical biometer that uses partial coherence interferometry (PCI) with the light source centered at 780 nm, is widely used.…”

Section: Introductionmentioning

confidence: 99%

Comparison of a new biometer using swept-source optical coherence tomography and a conventional biometer using partial coherence interferometry

et al. 2018

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The aim of this study was to compare the axial lengths (ALs) using a new biometer with swept-source optical coherence tomography (Argos) versus ALs using a conventional biometer with partial coherence interferometry (IOL Master, version 5). The ALs in 48 eyes of 48 cataract patients were measured with Argos using refractive indexes that correspond to the particular tissue and with IOL Master using a single refractive index. The eyes were divided into three subgroups by AL length: short-AL group (n = 16), <23.27 mm; intermediate-AL group (n = 16), 23.27–24.03 mm; long-AL group (n = 16), ≥24.04 mm. The ALs (mm) measured with the Argos and IOL Master biometers, respectively, were 22.77 ± 0.43 and 22.74 ± 0.44, 23.63 ± 0.21 and 23.62 ± 0.21, and 26.00 ± 1.61 and 26.05 ± 1.64 in the short-, intermediate-, and long-AL groups, respectively. The mean ALs with the Argos biometer were longer than those with the IOL Master biometer in the short-AL group (P = 0.002) There was no significant difference in the intermediate-AL groups (P = 0.14). In contrast, the mean ALs with the Argos biometer were shorter than those with the IOL Master biometer in the long-AL group (P < 0.001). Differences between the ALs measured with the two biometers were statistically significant in short- and long-AL subgroups. However, the differences might not be clinically significant.

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Section: Introductionmentioning

confidence: 99%

Comparison of a new biometer using swept-source optical coherence tomography and a conventional biometer using partial coherence interferometry

et al. 2018

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“…The precision in measurement of axial length by partial coherence interferometry technology, integrated automated keratometry function, and ease of operation are stated advantages of IOLMaster for standard biometry before cataract surgery. [11][12][13][14][15] The astigmatism measurement (meridian and power) by IOLMaster was not different from measurement using MK in our and others' studies. 16 However, the higher measurement of mean keratometric power with IOLMaster than with AK has previously raised concerns.…”

Section: Discussionmentioning

confidence: 91%

The effect of head tilt on keratometric measurement using the IOLMaster

Park

Kim

et al. 2013

Eye

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Purpose To investigate the effect of head tilt on keratometric measurement using the IOLMaster. Methods Twenty-seven right eyes of 27 volunteers were examined using a manual keratometer (MK), automated keratometer (AK), and an IOLMaster. MK and AK measurements were performed in the upright head position, whereas IOLMaster measurements were performed in five different head positions (upright, 51 or 151 clockwise head tilt, and 51 or 151 counter-clockwise head tilt). The repeatability of IOLMaster was compared with MK and AK. The keratometric measurements (mean keratometric power, magnitude of astigmatism, and steep meridian) in different head positions were compared. Results The IOLMaster showed good repeatability of keratometric measurement comparable to MK or AK. 151 and 51 clockwise head tilt resulted in 12.09 ± 9.51 (mean ± SD) (Po0.001 vs upright) and 5.51 ± 5.97 (mean ± SD) degrees (Po0.001) of clockwise rotation of steep meridian, respectively. 151 and 51 counter-clockwise head tilt resulted in 12.49±7.07 (mean±SD) (Po0.001) and 6.08±5.09 (mean±SD) degrees (Po0.001) of counter-clockwise rotation of steep meridian, respectively. Conclusions The patient's head tilt (51 or 151, clockwise or counter-clockwise) significantly changed the steep meridian of astigmatism measured using IOLMaster and the steep meridian generally shifted to the direction of head tilt. The importance of maintaining the upright head posture during IOLMaster measurement is demonstrated.

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“…It provides different echotexture and echogenicity patterns according to the degree of acoustic impedance (BENTLEY et al, 2003;MATTOON ;NYLAND, 2015), as well as information on the position of cataracteous lenses (GAIDDON et al, 1991;MOLGAT et al, 1993;BENTLEY et al, 2003;SQUARZONI et al, 2007). B-mode ultrasounds also identify retinal detachment and vitreous degeneration (LABRUYERE et al 2008;PARK et al, 2015), which influence the decision-making process for surgical treatment (KUBAL, 2008;RAYMOND et al, 2009;WHANG et al, 2012). Additionally, B-mode ultrasounds measure lens thickness and length, allowing clinicians to choose the right size of artificial substitutes (BRANDÃO et al, 2007;LUYET et al, 2008;BARBÉ et al, 2017).…”

Section: Bidimensional Ultrasound (B-mode)mentioning

confidence: 99%

Ultrasound methods used for planning for cataract surgery in dogs

Abreu

Feliciano

Uscátegui

et al. 2019

AVB

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Cataract is an important disease on veterinary ophthalmology. Different techniques facilitate the classification of the cataracts, adding information obtained by the conventional eye exam. This review discusses different modalities of ultrasonography methods available for diagnosis and surgical planning in dogs with cataracts. A-Mode ultrasound is used to evaluate thickness and length of the lens. B-Mode also has the capacity to evaluate features of echogenicity, echotexture, position of the lens and the identification of retinal and vitreous degenerations. The ultrasonic biomicroscopy is useful in assessing the anterior capsule and the positioning of the lens. The Doppler method it is useful to detection of vascular changes in patients with cataracts. The elastography method however allows measuring the lens rigidity, which is extremely important for planning and surgical prognosis.

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Comparison of Postoperative Refractive Outcomes: IOLMaster ^® Versus Immersion Ultrasound

Abstract: IOLMaster biometry yields highly accurate results in cataract surgery. However, if the IOLMaster is unavailable, immersion ultrasound biometry with personalized intraocular lens constants is an acceptable alternative.

Cited by 9 publications

References 21 publications

Comparison of a new biometer using swept-source optical coherence tomography and a conventional biometer using partial coherence interferometry

Comparison of a new biometer using swept-source optical coherence tomography and a conventional biometer using partial coherence interferometry

The effect of head tilt on keratometric measurement using the IOLMaster

Ultrasound methods used for planning for cataract surgery in dogs

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Comparison of Postoperative Refractive Outcomes: IOLMaster ® Versus Immersion Ultrasound

Abstract: IOLMaster biometry yields highly accurate results in cataract surgery. However, if the IOLMaster is unavailable, immersion ultrasound biometry with personalized intraocular lens constants is an acceptable alternative.

Cited by 9 publications

References 21 publications

Comparison of a new biometer using swept-source optical coherence tomography and a conventional biometer using partial coherence interferometry

Comparison of a new biometer using swept-source optical coherence tomography and a conventional biometer using partial coherence interferometry

The effect of head tilt on keratometric measurement using the IOLMaster

Ultrasound methods used for planning for cataract surgery in dogs

Contact Info

Product

Resources

About

Comparison of Postoperative Refractive Outcomes: IOLMaster ^® Versus Immersion Ultrasound