Description
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Product description
- Z-axis Accommodative Rock is a simple tool to help patients develop accommodative facility and control. It can be prescribed as a simple home-based exercise to help patients experience responsibility and control over their focusing mechanism.
- By arranging the distant chart and the transparent near-card directly in front of one another, the patient becomes aware of the ability to shift the accommodative plane of focus from distance to near, and to any point in between. As they bring one plane into focus, they are able to observe the other plane blurring out of focus simultaneously. This arrangement isolates the z-axis from the x- and y-axes, high-lighting the focusing mechanism as a distinct experience from eye-tracking.
| Topic | Discription |
| Purpose / Target Users | For accommodative facility training, home-based, vision therapy, accommodative dysfunctions, early presbyopia. t is a tool to help patients develop accommodative facility and control (i.e. the ability to shift focus between near and far). jutronvision.com It may be used as a home-based exercise or as part of a vision therapy program. jutronvision.com Target users would include patients with accommodative dysfunctions and individuals beginning to experience presbyopic changes. |
| Optotypes / Symbols | It is called “clear bullseyes” — so the target is bullseye shapes (concentric circles). Whether any letters, numbers, or other optotypes are embedded or overlaid is not stated |
| Scaling / Spacing | The sizes of bullseye rings, spacing intervals, progression of scale are unknown |
| Range of Acuity / Line Sizes | The smallest and largest acuity levels or line sizes (or ring diameters) are not given |
| Testing Distance | The recommended working distance(s) (e.g. near, intermediate, far) are not stated |
| Included Accessories / Extras | patient‑oriented instructions are included |
| Used | The chart consists of a distant chart and a transparent near‑card placed in front of one another. As the patient brings one plane into focus, the other blurs, thereby isolating the z-axis (accommodation) from horizontal/vertical eye movements (x- and y-axes). The design lets patients see the other plane out of focus while one is in focus, making the focusing mechanism more perceptible. |
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