Journals / Glokom Katarakt / 2014 / Cilt: 9 - Sayı: 2

Comparison of Anterior Chamber Depth and Axial Length Measurements by the IOLMaster and A-Scan Ultrasound

IOLMaster ve A-Tarayıcı Ultrason ile Ön Kamara Derinliği ve Aksiyel Uzunluk Ölçümlerinin Karşılaştırılması

Pages
89–92
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Optic biometry should be preferred since reducing the risk of potential refractive error associated with surgery

📌 3 Key Takeaways

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Objective & Hypothesis:Purpose: To comparison of anterior chamber depth (ACD) and axial length (AL) measurements by the IOLMaster and Ascan ultrasound.Material and Method: Sixty right eyes of 60 patients (29 male and 31 female) were included in the study.
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Key Findings & Data:Firstly, ACD and AL were measured IOLMaster (Carl Zeiss Meditec, Jena, Germany), after that A-scan ultrasound (SW-1000, Suowei Co., Tianjin, China) measurements were performed.
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Conclusion & Impact:Optic biometry should be preferred since reducing the risk of potential refractive error associated with surgery
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Purpose: To comparison of anterior chamber depth (ACD) and axial length (AL) measurements by the IOLMaster and Ascan ultrasound.Material and Method: Sixty right eyes of 60 patients (29 male and 31 female) were included in the study. Firstly, ACD and AL were measured IOLMaster (Carl Zeiss Meditec, Jena, Germany), after that A-scan ultrasound (SW-1000, Suowei Co., Tianjin, China) measurements were performed. Results were elaborated using Pearson's correlation and paired-t test.Results: The mean age of patients were 24.6±4.90 years . Mean values and ranges of ACD and AL were as follows respectively, 3.19±0.28 mm (2.63-3.66) and 22.85±0.75 mm (21.93-24.87) for IOLMaster, and 2.97±0.29 mm (2.46-3.35) and 22.76±1.00 mm (21.68-25.50) for A-scan ultrasound. Mean difference in ACD and AL measurements for IOLMaster was 0.22 mm and 0.09 mm higher than A-scan ultrasound, respectively (p<0.0001 and p=0.01, respectively). The correlation between two methods was statistically significant (r=0.922, p<0.0001 and r=0.985, p<0.0001, respectively).Conclusion: Although there was high correlation between measurements, statistically significance was found between two methods. Optic biometry should be preferred since reducing the risk of potential refractive error associated with surgery

Özet

Amaç: IOLMaster ve A-tarayıcı ultrason ile yapılan ön kamara derinliği (ÖKD) ve aksiyel uzunluk (AU) ölçümlerinin karşılaştırılması.Gereç ve Yöntem: Çalışmaya 60 hastanın (29 erkek, 31 kadın) 60 sağ gözü dahil edildi. İlk olarak IOLMaster (Carl Zeiss Meditec, Jena, Germany) ile ÖKD ve AU ölçümleri, takiben A-tarayıcı ultrason (SW-1000, Suowei Co., Tianjin, China) ile aynı ölçümler yapıldı. İki yöntemle elde edilen ölçümler arası farklılık paired t testi ile, korelasyon ise Pearson korelasyon analizi ile değerlendirildi.Bulgular: Hastaların ortalama yaşı 24.6±4.90 yıl idi. IOLMaster ile ortalama ÖKD 3.19±0.28 mm (2.63-3.66), ortalama AU 22.85±0.75 mm (21.93-24.87), ultrason ile ortalama ÖKD 2.97±0.29 mm (2.46-3.35) ve ortalama AU 22.76±1.00 mm (21.68-25.50) bulundu. IOLMaster ile ortalama ÖKD 0.22 mm ve ortalama AU 0.09 mm daha yüksekti. IOLMaster ölçümleri ultrasona göre istatistiksel olarak anlamlı yüksek bulundu (p<0.0001 ve p=0.01 sırasıyla) Her iki yönteme ait ÖKD ve AU ölçümleri arasındaki korelasyon anlamlı ve çok yüksekti (r=0.922, p<0.0001 ve r=0.985, p<0.0001 sırasıyla).Sonuç: IOLMaster ve ultrason ile yapılan ölçümler yüksek korelasyon gösterse de ölçümler arasında anlamlı farklılık vardır. Biyometride optik yöntemlerin kullanılması cerrahisi sonrası olası refraktif hataları en aza indireceğinden tercih edilen yöntem olmalıdır

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Cite This Article

Tuncer, İ., ZENGİN, M. Ö., KARAHAN, E. (2014). Comparison of Anterior Chamber Depth and Axial Length Measurements by the IOLMaster and A-Scan Ultrasound. Glokom Katarakt, Cilt: 9 - Sayı: 2, 89–92. https://ajindex.com/articles/210377

References (13)

  1. Turhan SA, Toker E. Göz içi lens gücünün hesaplamasında optik düşük-koherens reflektometri ve immersiyon ultra- sonik biometri ölçümlerinin karşılaştırılması. Glo-Kat 2012;7:219-23.
  2. Lee DA, Brubaker RF, Ilstrup DM. Anterior chamber dimen- sions in patients with narrow angles and angle-closure glau- coma. Arch Ophthalmol 1984;102:46-50.
  3. Devereux JG, Foster PJ, Baasanhu J, et al. Anterior chamber depth measurement as a screening tool for primary angle-clo- sure glaucoma in an East Asian population. Arch Ophthalmol 2000;118:257-63. Olsen T. Calculation of intraocular lens power: a review. Acta Ophtalmol Scand 2007;85:472-85.
  4. Vetrugno M, Cardascia N, Cardia L. Anterior chamber depth measured by two methods in myopic and hyperopic phakic IOL implant. Br J Ophthalmol 2000;84:1113-6.
  5. Rose LT, Moshegov CN. Comparison of the Zeiss IOLMaster and applanation A-scan ultrasound: biometry for intraocular lens calculation. Clin Experiment Ophthalmol 2003;31:121-4.
  6. Osuobeni EP, Oduwaiye KA. The effect of illumination-mi- croscope angle on slit lamp estimate of the anterior chamber depth. OptomVisSci 2003;80:237-44.
  7. Santodomingo-Rubido J, Mallen EA, Gilmartin B, et al. A new non-contact optical device for ocular biometry. Br J Ophthalmol 2002;86:458-62.
  8. Sheng H, Bottjer CA, Bullimore MA. Ocular component measure- ment using the Zeiss IOLMaster. OptomVisSci 2004;81:27-34. Holladay JT. Standardizing constants for ultrasonic biometry, kera- tometry, and intraocular lens power calculations. J Cataract Refract Surg 1997;23:1356-70.
  9. Radhakrishnan S, See J, Smith SD, et al. Reproducibility of anterior chamber angle measurements obtained with anterior segment optical coherence tomography. Invest Ophthalmol Vis Sci 2007;48:3683-8.
  10. Gazzard G, Friedman DS, Devereux JG, et al. A prospective ultrasound biomicroscopy evaluation of changes in anterior segment morphology after laser iridotomy in Asian eyes. Oph- thalmology 2003;110:630-8. Jacobs IH. Anterior chamber depth measurement using the slit-lamp microscope. Am J Ophthalmol 1979;88:236-8.
  11. Richards DW, Russell SR, Anderson DR. A method for im- proved biometry of the anterior chamber with a Scheimpflug technique. Invest Ophthalmol Vis Sci 1988;29:1826-35.
  12. Baikoff G, Jitsuo Jodai H, Bourgeon G. Measurement of the internal diameter and depth of the anterior chamber: IOL- Master versus anterior chamber optical coherence tomogra- pher. J Cataract Refract Surg 2005;31:1722-8.
  13. Frisch IB, Rabsilber TM, Becker KA, et al. Comparison of anteri