SPAC satisfies requirements for screening glaucoma.

Changes in the anterior chamber depth are quantitatively evaluated

SPAC measures quantitatively the anterior chamber depth without any contact, consecutively from the pupil centre to the temporal limbus. It is intended to automatically evaluate the potential to develop angle-closure glaucoma (ACG), i.e. to screen the ACG eye or the potential ACG eye. It also aims to assist routine medical examinations, by evaluating simply, quantitatively the anterior chamber depth change in various pathologies.

Unique programs enable data analysis with a high degree of accuracy

SPAC is a non-contact analyzer, adopting the optical examination system. With a conventional optical measuring system, the examination result cannot obtain accuracy due to the influence of light refraction. Unique programs eliminate such demerits of conventional optical examination systems, and enable an instant data analysis. In addition, it enables a quantitative examination that was difficult with conventional examination systems. With this system, continuous follow-up of glaucoma patients can be performed easily.

Easy operation: Automatic alignment / Display of binocular examination results

Set the patient's chin on the chin rest, and adjust the chin rest position vertically so that the patient's eye is displayed at the centre of the anterior ocular display section on the monitor.

Examination result screen

Examination result grading

SPAC categorizes the anterior chamber depth into 12 grades from Grade 1 (narrow) to Grade 12 (deep), and enables finer grading of the anterior chamber depth. Furthermore, the Suffix attachments S (suspect) and P (potential) to the Grade number represent the potential risk of angle-closure glaucoma.

Examination results of Grade=9 and Grade=7 shown below show deep anterior chamber depths, and indicate less potential to develop ACG.

Grade=9
No evaluation mark (× or △) is indicated at any measurement point.
In such cases, S (suspect) or P (potential) is not indicated for the
numerical value that represents the evaluation grade.

Grade=7
No evaluation mark (× or △) is indicated at any measurement point.
In such cases, S (suspect) or P (potential) is not indicated for the
numerical value that represents the evaluation grade.

Examination results of Grade=5P and Grade=3S shown below show narrow anterior chamber depths, and indicate that a close examination by a specialist is required.

Grade=5P
The △ mark of the evaluation mark (× or △) is indicated at 4 or
more measurement points. In such cases, P (potential) is indicated
for the numerical value that represents the evaluation grade.

Grade=3S
The × mark is indicated at 4 or more measurement points.
In such cases, S (suspect) is indicated for the numerical value
that represents the evaluation grade.

Note: The result of evaluation does not completely determine the potential to develop ACG.