PMID- 31286869 OWN - NLM STAT- MEDLINE DCOM- 20190723 LR - 20200225 IS - 1471-2415 (Electronic) IS - 1471-2415 (Linking) VI - 19 IP - 1 DP - 2019 Jul 8 TI - Comparison of spectral domain and swept source optical coherence tomography for angle assessment of Chinese elderly subjects. PG - 142 LID - 10.1186/s12886-019-1145-7 [doi] LID - 142 AB - BACKGROUND: This comparative study aimed to demonstrate the differences between swept source OCT (SS-OCT) (1310 nm) and spectral domain OCT (SD-OCT) (840 nm) for the identification and measurement of anterior chamber angle (ACA) structures. METHODS: Sixty seven eyes from 67 healthy subjects underwent ACA imaging at the nasal and temporal sides using SS-OCT and SD-OCT with different wavelength (Tomey, 1310 nm and RTvue, 840 nm). Images were evaluated for the ability to distinguish angle structures including the Schwalbe's line (SL), the Schlemm's canal (SC) and the scleral spur (SS). The length of trabecular meshwork (LTM), the angle-opening distance (AOD500 and AOD750) and the length of Schlemm's canal (LSC) were also measured. RESULTS: The nasal identification rate for SL, SC and SS were 91.04%/89.55%, 50.75%/40.30% and 100.0%/74.63% (SS-OCT/SD-OCT), respectively. The temporal identification rate for SL, SC and SS were 86.57%/91.04%, 68.66%/70.15% and 100.0%/65.67% (SS-OCT/SD-OCT), respectively. Differences between SS-OCT and SD-OCT were found in terms of the visualization of the SS. With respect to the measurements of angle, the evaluation of LTM at the nasal side, LSC at the temporal side and AOD500/750 at both sides showed significant difference between the two devices. However, there existed good correlation between the AOD500/750 measured by SS-OCT and SD-OCT (Spearman's rank correlation coefficient > 0.8, p < 0.000). CONCLUSIONS: SS-OCT displayed a better performance in detecting deeper structures of the angle such as the SS. However, for discriminating structures lying in transparent or semi-transparent tissue such as the SL and the SC, the two devices showed good consistency. Although SS-OCT and SD-OCT demonstrated high correlation for angle measurement (AOD500/750), their agreement was poor. FAU - Qiao, Yunsheng AU - Qiao Y AD - Department of Ophthalmology & Visual Science, Eye and ENT Hospital of Fudan University, 83 Fenyang Rd, Shanghai, 200031, China. FAU - Tan, Chen AU - Tan C AD - Department of Ophthalmology & Visual Science, Eye and ENT Hospital of Fudan University, 83 Fenyang Rd, Shanghai, 200031, China. FAU - Zhang, Min AU - Zhang M AD - Department of Ophthalmology & Visual Science, Eye and ENT Hospital of Fudan University, 83 Fenyang Rd, Shanghai, 200031, China. AD - NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences and Key Laboratory of Visual Impairment and Restoration of Shanghai, Shanghai, 200031, China. FAU - Sun, Xinghuai AU - Sun X AD - Department of Ophthalmology & Visual Science, Eye and ENT Hospital of Fudan University, 83 Fenyang Rd, Shanghai, 200031, China. AD - State Key Laboratory of Medical Neurobiology, Institutes of Brain Science and Collaborative Innovation Center for Brain Science, Fudan University, Shanghai, 200032, China. AD - NHC Key Laboratory of Myopia (Fudan University), Key Laboratory of Myopia, Chinese Academy of Medical Sciences and Key Laboratory of Visual Impairment and Restoration of Shanghai, Shanghai, 200031, China. FAU - Chen, Junyi AU - Chen J AD - Department of Ophthalmology & Visual Science, Eye and ENT Hospital of Fudan University, 83 Fenyang Rd, Shanghai, 200031, China. chenjy@fudan.edu.cn. LA - eng GR - 81470623/National Natural Science Foundation of China/ GR - 81870661/National Natural Science Foundation of China/ PT - Comparative Study PT - Journal Article DEP - 20190708 PL - England TA - BMC Ophthalmol JT - BMC ophthalmology JID - 100967802 MH - Anterior Eye Segment/*diagnostic imaging MH - China/epidemiology MH - Cross-Sectional Studies MH - Female MH - Follow-Up Studies MH - Glaucoma, Angle-Closure/*diagnosis/epidemiology/physiopathology MH - Glaucoma, Open-Angle/*diagnosis/physiopathology MH - Gonioscopy MH - Healthy Volunteers MH - Humans MH - Incidence MH - Intraocular Pressure/*physiology MH - Male MH - Middle Aged MH - Prospective Studies MH - Reproducibility of Results MH - Retrospective Studies MH - Tomography, Optical Coherence/*methods MH - Trabecular Meshwork/diagnostic imaging PMC - PMC6615428 OTO - NOTNLM OT - Angle OT - Optical coherence tomography OT - Spectral domain OT - Swept source OT - Wavelength COIS- The authors declare that they no competing interests. EDAT- 2019/07/10 06:00 MHDA- 2019/07/25 06:00 PMCR- 2019/07/08 CRDT- 2019/07/10 06:00 PHST- 2019/04/09 00:00 [received] PHST- 2019/06/13 00:00 [accepted] PHST- 2019/07/10 06:00 [entrez] PHST- 2019/07/10 06:00 [pubmed] PHST- 2019/07/25 06:00 [medline] PHST- 2019/07/08 00:00 [pmc-release] AID - 10.1186/s12886-019-1145-7 [pii] AID - 1145 [pii] AID - 10.1186/s12886-019-1145-7 [doi] PST - epublish SO - BMC Ophthalmol. 2019 Jul 8;19(1):142. doi: 10.1186/s12886-019-1145-7.