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An attempt to observe the finding of the crystalline lens nucleus using images taken by the anterior segment optical coherence tomography Kiyoyuki Majima 1 , Kei Ichikawa 2 , Yukihiro Sakai 3 , Yukihito Kato 3 , Yoshiki Tanaka 3 , Reiko Ichikawa 3 , Akeno Tamaoki 4 , Kazuo Ichikawa 3 1Eye Clinic Myouganin 2Department of Ophthalomology, Aoyama General Hospital 3Chukyo Eye Clinic 4Department of Ophthalmology, Japan Community Health Care Organization Chukyo Hospital pp.619-625
Published Date 2023/5/15
DOI https://doi.org/10.11477/mf.1410214796
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Abstract Purpose:To analyze lens images obtained using anterior segment optical coherence tomography and prepare a nuclear sclerosis category of the cataract lens.

Subjects and Methods:This study included 281 eyes who underwent lens reconstruction and were photographed preoperatively using the Anterion®(Heidelberg Engineering Inc.). A nuclear category was performed based on the central interlayer findings. Additionally, depending on the patient, the original images were classified into shades 3, 4, and 5 for nuclear observation. We next analyzed the cumulative ultrasound energy(C value)reflecting the nuclear sclerosis measured during reconstructive surgery in patients of each category in C values among groups.

Results:The central clear zone(CZ)was unobservable(0);the CZ was observable in the layer across the nucleus(1);the CZ was unobservable except in the center(2);the entire nucleus had a light shading with an indistinct CZ(3);the entire nucleus had a dark shading with an unobservable CZ(4). Classification 4 further had two categories:4a and 4b, with unobservable and observable shadings in tone 3, respectively. Except between categories 1 and 2, the C values were significantly greater with higher category numbers, with the C value of category 4b being significantly greater than that of 4a.

Conclusion:This new nuclear sclerosis category might allow easy analysis of lens images and provide useful information to the surgeons.


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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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