1. Novel and Semiautomated 360-Degree Gonioscopic Anterior Chamber Angle Imaging in Under 60 Seconds 
Yue Shi, MD, PhD, Xin Yang, MD, PhD, Kenneth M. Marion, MS, MBA, Brian A. Francis, MD, MS, SriniVas R. Sadda, MD, Vikas Chopra, MD 
Ophthalmology Glaucoma 
Volume 2, Issue 4, Pages (July 2019)
DOI: /j.ogla
Copyright © 2019 American Academy of Ophthalmology Terms and Conditions

2. Figure 1
The NGS-1 gonioscope (NIDEK Co, Gamagori, Japan). A, Side view of the device. B, Patient’s view of the device. C, The 16-section machine-attached gonioscopic lens + camera system, which will make contact with patient’s eye. D, The operator is applying gel onto the lens before the patient’s eye can be engaged to the lens/camera.
Ophthalmology Glaucoma 2019 2, DOI: ( /j.ogla )
Copyright © 2019 American Academy of Ophthalmology Terms and Conditions

3. Figure 2
Example images taken by the NGS-1 gonioscope (NIDEK Co, Gamagori, Japan) with angle opening of Scheie grade wide to grade III, respectively. In the Scheie grading system, angles are graded wide if all structures are visible up to the iris root and its attachment to the anterior ciliary body; grade I if all angle structures are visible up to the scleral spur; grade II when angle structures are visible only until the posterior trabecular meshwork (TM); grade III when only the Schwalbe lines and the anterior TM are visible; and, finally, grade IV when no TM can be observed.
Ophthalmology Glaucoma 2019 2, DOI: ( /j.ogla )
Copyright © 2019 American Academy of Ophthalmology Terms and Conditions

4. Figure 3
Three display formats provided by the NGS-1 (NIDEK Co, Gamagori, Japan) device. A, A 16-section display. B, The circular display, which comprises “stitched” images displayed in a view as typically “seen” by the physician during gonioscopy. C, The linear display, which is an “unrolled” image allowing easier side-by-side comparison of various sections. I = inferior; N = nasal; S = superior; T = temporal.
Ophthalmology Glaucoma 2019 2, DOI: ( /j.ogla )
Copyright © 2019 American Academy of Ophthalmology Terms and Conditions

5. Figure 4
Pre- and postoperative conditions imaged by the NGS-1 gonioscope (NIDEK Co, Gamagori, Japan). Successful imaging was achieved of surgical devices and postsurgical conditions, including CyPass, iStent, XEN, Baerveldt tube shunt, angle recession with iridodialysis, angle neovascularization, pigment dispersion, posttrabeculectomy sclerostomy and surgical iridectomy, and post–peripheral iridotomy.
Ophthalmology Glaucoma 2019 2, DOI: ( /j.ogla )
Copyright © 2019 American Academy of Ophthalmology Terms and Conditions