Clinical Publications

TRITON

Three-Dimensional Evaluation of Posterior Pole and Optic Nerve Head in Myopes with Glaucoma

AUTHORS:

Kim YC, Jung KI, Lopilly Park HY, Park CK

PUBLICATION:

Sci Rep 7, 18001 (2017). DOI: 10.1038/s41598-017-18297-8

Study Purpose

To compare the deepest point in the eye (DPE) in myopes with and without normal tension glaucoma (NTG).

Overview

Study Design

Retrospective

# of Eyes/
Patients

• Myopic, Korean patients with NTG (129 eyes) and without NTG (125 eyes)

Study Device

DRI Triton SS-OCT (Topcon, Tokyo, Japan)

Outcome Measures

• Deepest point of the eyeball (DPE), configuration of posterior pole with DPE position, posterior pole classification with DPE location, optic disc torsion, optic disc til

Results

Posterior pole profiles and the optic disc configurations between the myopes without NTG and myopes with NTG were found to be significantly different.
Disc-DPE distance was significantly greater in glaucomatous eyes than non-glaucomatous eyes(4.01 ± 1.27 vs. 3.66 ± 1.31 mm; P = 0.031).
Disc-DPE depth was greater in those with glaucoma than those without (0.17 ± 0.16 vs. 1.3 ± 0.17 mm; P = 0.057).
The disc configuration of ovality index, horizontal tilt angle, and vertical tilt angle was significantly larger in the myopes with NTG (P < 0.001, P < 0.001, and P = 0.035, respectively). However, the Disc-DPE angle, disc fovea angle, and disc torsion angle were not significantly different between the glaucomatous myopes and the healthy myopes (P=0.896, P=0.448, and P = 0.196, respectively).

IMOvifa reduced measurement time by

39%

Conclusions

• Between myopes with and without NTG with similar axial length, myopes with NTG had deeper and more distant location of the DPE from the optic disc. • The data suggests that the parameter DPE may provide a proper standard to analyze the posterior pole of myopes than the parameter axial length