This test assesses the ability to fuse the image from each individual eye into one 3D image and so that the patient is seeing in three dimensions. Requires binocularity. Differs from depth perception. Depth perception is the judgment of spatial relations and is learned. It can exist in monocular patients. Stereopsis is not learned and cannot exist in monocular patients.
There are a few different books that you can use for stereopsis test, so that test will be dependent upon what's available at your office, but typically you will have the patient put the glasses on and report what it is that they see.
“Mrs. Davis, this test uses your ability to detect 3D images to assess how well your eyes work together.”
For documentation purposes, it's pretty straightforward within most EMR's. You'll have to determine which test you were utilizing in your office and then also report whether or not the stereo pictures or the random dot pictures were seen.
Common patient feedback and responses: sometimes the patient will state that they are unable to see the 3D image. Remember, the last thing you want to do is alarm the patient. Just let the patient know its okay, and the doctor will review with additional tests. Sometimes I will ask additional questions, such as if they get motion sickness very easily, or if they get frequent headaches. Have they ever been able to enjoy 3D movies? This could indicate eye teaming issues sometimes only noticeable when our eyes are tired.