P200/P200Dx Imaging

Ultra-Widefield Retinal Imaging System

  • Optos 200Dx

P200/P200Dx Imaging

200Dx

200Dx is a widefield digital imaging device capable of capturing from the far periphery of the retina. The retinal images are captured in an automated, patient friendly way without scleral depression or contact with the cornea.

The 200Dx/P200 uses red and green lasers to produce a digital, high-resolution image, which is displayed on a PC monitor screen. Red and green lasers are used for digital color imaging. These laser wavelengths penetrate the retinal structures to different depths, each wavelength providing information for interpretation and diagnosis.

Optos’ technology is designed to operate through a minimum pupil diameter of 2mm. Although pupil dilation is not required, the decision to dilate is a medical decision to be made by the eye care professional. Images are captured on the scan head and then viewed, magnified, annotated and separated into their color components in the review application.

Category:

Individual video techniques

optos 200Dx - well position eyeWell Positioned Eye

When the iris aligns with the eye camera ring, the patient should be looking directly at the green dot and see a full fine red halo in their peripheral vision. The crosshair of the camera should be centered to the iris.

 

 


optos 200Dx -too lowToo low

When the eye is too low, the iris appears low in the eye camera ring. The patient sees the upper part of the red halo.

Solution: Lower the height of the table or patient chair.

 

 

optos 200Dx -too highToo high

When the eye is too high, the iris appears too high in the eye camera ring. The patient sees the lower part of the red halo.

Solution: Increase the height of the table or patient chair.

 

 

optos 200Dx -Too far inToo far in

The eye is too far in when the iris exceeds the camera eye ring. The patient sees a thick red halo. The retinal image will appear obscured by eyelids and is excessively green.

Solution: With patient’s compliance, move the patient back from the instrument and increase inflation in eyepiece. Have them confirm verbally that they can see a normal amount of the red halo and re-image.

 

optos 200Dx - Too far outToo far out

The iris does not fill the eye camera ring when the eye is too far out. The patient sees a very faint red halo. The retinal image will show a black-green color on the periphery.

Solution: Ensure the eyepiece is deflated and with patient compliance, move the patient into position by applying gentle pressure to the back of the patient’s head to secure against the eyepiece. Have them confirm verbally that they can see more of the red halo and re-image.

 

optos 200Dx - Too far leftToo far left

When the eye is too far left, the iris appears to the left of the eye camera ring. The patient sees the right part of the red halo.

Solution: Move the patient’s chair to the right or guide the patient’s head position.

 

 

optos 200Dx - Too far rightToo far right

The iris appears to the right of the eye camera ring when the eye is too far right. The patient sees the left part of the red halo.

Solution: Move the patient’s chair to the left or guide the patient’s head position.

 

 

optos 200Dx - BlinksBlinks

Blinks appear as spikes on the image due to image capture speed. Some patients may blink automatically as they press the capture button.

Solution: Allow patient to correctly align and operator presses capture button.

 

 

optos 200Dx -Eye closed

Eye closed

This happens when a patient has an eye completely closed.

Solution: Use eye camera to guide patient and operator presses capture button using eye camera to check eye is open.

Documents

200Dx brochure  Download