Miyake-Apple posterior video analysis/photographic technique

Abstract

The Miyake-Apple technique for posterior photography and video analysis of postmortem eyes and its variations provide a unique view of the anterior segment structures and surgical manipulations that are not readily seen during surgical procedures or by clinical inspection. It is particularly useful in studying and teaching anterior segment surgery, especially cataract and intraocular lens (IOL) surgery. We summarize the peer-reviewed literature on the use of this technique (1) in experimental studies with fresh human or animal eyes to analyze new IOLs and surgical techniques, (2) in formalin-fixed human pseudophakic autopsy eyes to study IOL-related complications, and (3) for teaching and training purposes.

Miyake-Apple view of inner side of sclerotomy during microincision vitrectomy surgery

“…The advantage of Miyake‐Apple view is the higher resolution of the images on the video camera‐monitor attached to an operating microscope (Pereira et al. 2009).…”

“…(1990) to allow real‐time viewing at high resolution with enhanced magnification. The Miyake‐Apple posterior views provided a unique view of the structures in the anterior segment of the eye, which allowed an evaluation of the movement of the lens capsule, the stress on the zonular fibres, the inner surface of the iris, the ciliary processes and the anterior vitreous surface (Pereira et al. 2009).…”

“…In 1990, the method was modified by Apple et al (1990) to allow real-time viewing at high resolution with enhanced magnification. The Miyake-Apple posterior views provided a unique view of the structures in the anterior segment of the eye, which allowed an evaluation of the movement of the lens capsule, the stress on the zonular fibres, the inner surface of the iris, the ciliary processes and the anterior vitreous surface (Pereira et al 2009). The enlargement of the lens capsular bag during phacoemulsification or capsular stretching during the intraocular lens insertion was clearly seen (Nishi et al 2000;Auffarth et al 2004a,b;Ahmed et al 2005;Werner et al 2005;Vasavada et al 2008).…”

7.1 T MRI to Assess the Anterior Segment of the Eye

“…The Miyake-Apple technique, video analysis, and MRI have been used to investigate anterior segment structures after surgical manipulation of postmortem eyes. 15 Recent accommodation studies using MRI are quite rare compared with those using optical and ultrasound technologies.…”

“…MRI is currently used in ophthalmology for posterior segment imaging, [5][6][7][8][9][10][11] orbital imaging, 12 and anterior segment imaging. 10,[13][14][15][16] Increasing the field strength of the static magnetic field (B0) results in improved signal-to-noise ratio (SNR). This is associated with enhanced spatial resolution and a shorter scanning time.…”