Eye Tracking

[kingcer0x]

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Hello Opthalmologists and Opthalmologists in training:

How many of you do work with eye tracking (video or scleral coils or EOG, etc.) , in either a clinical or research setting? I was just wondering, I work as an engineer for an eye tracking company right now and will be attending med school this fall. I'd be interested in opthalmology as a specialty and was wondering if any of this additional knowledge will ever come in handy in either trying to match or in practice.

The company is SMI: www.smiusa.com

 

[Andrew_Doan]

We use eye tracking during visual field testing. EOG is only useful for Best disease and is a horribly unreliable test. In short, eye tracking is not that useful in every day clinical practice.

 

[pianist]

I'm a med student doing research with an ophthalmologist that makes extensive use of scleral coils in his research. He studies head/eye coordination and Listing's plane violations, during VOR elicited from linear and rotary accelerations. (He's built accelerating chairs inside of EMF generating cubes). The research is generally published in neurophysiology/neuroscience, and ENT journals.

Your engineering background would be very useful as an ophthalmologist if you chose to work in specific research areas.

 

[kingcer0x]

I'm a med student doing research with an ophthalmologist that makes extensive use of scleral coils in his research. He studies head/eye coordination and Listing's plane violations, during VOR elicited from linear and rotary accelerations. (He's built accelerating chairs inside of EMF generating cubes). The research is generally published in neurophysiology/neuroscience, and ENT journals.

Your engineering background would be very useful as an ophthalmologist if you chose to work in specific research areas.

Coils give you great temporal resolution but are uncomfortable... I have seen 60Hz video systems for nystagmus detection used with rotary chairs. The signal is clean but you wont get enough points during the fast-phase to determine saccade velocity. Combine it with a head motion sensor (gyroscopic + accelerometer) and you directly get the VOR gain (SPV / omega).