J Korean Ophthalmol Soc > Volume 60(11); 2019 > Article
Journal of the Korean Ophthalmological Society 2019;60(11):1043-1049.
DOI: https://doi.org/10.3341/jkos.2019.60.11.1043    Published online November 15, 2019.
Accuracy of Predicting Refractive Outcomes Using Swept-source Optical Coherence Tomography in Nuclear Cataracts.
Youngju An, Hyojin Kim, Choun Ki Joo
1Department of Optometry, Baekseok Culture University, Cheonan, Korea.
2Division of Health Science, Baekseok University, Cheonan, Korea.
3CK St. Mary's Eye Center, Seoul, Korea. ckjoo8663@gmail.com
핵백내장에서 파장가변 빛간섭단층촬영계를 이용한 굴절력 예측의 정확성
안영주1 · 김효진2 · 주천기3
백석문화대학교 안경광학과1, 백석대학교 보건학부2, CK성모안과의원3
Correspondence:  Choun-Ki Joo, MD, PhD
Email: ckjoo8663@gmail.com
Received: 11 October 2018   • Revised: 13 February 2019   • Accepted: 23 October 2019
To evaluate the accuracy of predicting refractive outcomes of swept-source optical coherence tomography based biometry (ARGOS; Movu Inc., Santa Clara, CA, USA) in nuclear cataracts. METHODS: A total of 107 eyes (107 nuclear cataract patients) were analyzed. Subjects were divided into three groups according to the maximum nuclear density of Pentacam HR (A, lower tertile; B, medium tertile; C, upper tertile). The keratometry and axial length measured by IOLMaster (Carl Zeiss Meditec, Jena, Germany) and ARGOS systems were compared for each group. The correlation between maximum nuclear density and axial length difference readings from the two instruments was evaluated. The mean absolute error between the predicted refraction and 2-month post-operative refraction was compared. RESULTS: The maximum nuclear densities were 28.31 ± 7.30, 51.37 ± 7.82, and 88.63 ± 11.23 for groups A, B, and C, respectively. The axial length measured by ARGOS was significantly longer than that obtained using IOLMaster for groups B and C (respectively, p = 0.035, p < 0.001). A significantly positive correlation was found between the maximum nuclear density and axial length difference of the two devices (p < 0.001). Mean absolute errors were not significantly different between IOLMaster and ARGOS in group A. However, in groups B and C, the mean absolute error using ARGOS (0.31 ± 0.22 D and 0.32 ± 0.20 D, respectively) was significantly lower than that of IOLMaster (0.43 ± 0.21 D and 0.50 ± 0.26 D, respectively) (Group B, p = 0.027; Group C, p = 0.001). CONCLUSIONS: Even in dense nuclear cataracts, accurate refractive outcome prediction was possible using swept-source optical coherence tomography based biometry.
Key Words: ARGOS;Cataract;Intraocular lenses;Swept-source optical coherence tomography

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