is a hand-held device for self-examination of the eye. FloatScope can help
monitor various ocular health conditions such as:
These are objects that move around when you move your eyes.
the cornea and eye lens. These are fixed in place but you can
see their shadow on the retina when using FloatScope.
of the iris. Specifically, you can view the iris changing its
size when the amount of light that enters the eyes changes.
What Are Floaters:
Floaters are opaque or semi-opaque deposits (e.g. dead cells) that float inside the eye. They can have various
shapes and sizes, and they move around when you move your eyes side-to-side
or up-and-down. You can see floaters because they create shadows on your
retina (see image below).
How FloatScope Works:
If you place a point source of light close to the eye, a beam of light
illuminates part of the retina. Every such point on the retina gets
illuminated by a "single ray of light" (see image below). This enables the
viewer to see and inspect opacities in
his/her own visual system. For instance, a clear
and sharp image of floaters is imaged on the retina.
FloatScope creates a point source of light by using a light source (a
standard pen flashlight), optical components (to absorb, reflect, and
diffuse light) and a pinhole. The optical components reduce harmful
radiation that might exist from your flashlight and ensure homogeneous radiation at the pinhole. When the pinhole is positioned along the
viewer's optical axis and close to the eye, floaters as well as other
opacities in the eye are imaged on the retina of the viewer.
FloatScope contains the following components:
- Pinhole (laser drilled 0.1mm diameter).
- UV reflector to block UV light that might exist from your flashlight.
- IR absorber to reduce infrared radiation that might exist from your
Use FloatScope for educational purposes
only. FloatScope should not be used for diagnosing eye problems or as a
replacement for a professional eye exam.
Click here to
Note: We have released a cell phone application for viewing eye floaters
US patent application).
The application displays a pinhole that can be pulsed and change in size. If
you have eye floaters, this application can help you see a clear and sharp
image of your floaters. Currently available for Android and BlackBerry
Get it from the Android Market:
Get it from BlackBerry App World: