 So that eyedropper was fluorescing to help with the parents on the Myers so that you can see them when you're doing the pressure check. So the way in which I like to check pressure is with the patient aligned at the slit lamp. Bring the tenometer in, of course, over to your cobalt blue light, a nice broad illumination. I actually like to look through just one of the oculars leaving so my right eye through the left ocular and can sight the patient with my left eye and then as I move in switch over to looking through my right eye to bring into view the Myers and adjusting until I see the proper alignment of the centric circles or half circles. Pressure is 14 today. Note that at the time of placement of fluorescing the eye was also numbed. Otherwise the patient will feel the Myers touch the front of the eye. For the the tonopen on this particular model there's two dashed lines that you'll see when it's ready. You can assess that by clicking the button and they should come up. And then standing to the patient's side so you can directly visualize the tonopen touching the patient's surface just lightly tapping. Give some auditory feedback and then we'll give the measured output and degree of error. So we measure 13, which corresponds to this goldmine appellation of 14 with the air bar in this case is at the 10% level. So I would maybe consider repeating it to get down to a 5%. To repeat, simply push the button again to get back to the two dashed lines. Have the patient again looking straight ahead lightly tapping at the central corneum. If you do not hear the auditory feedback, I like to check the to make sure that the tip covering the tonopen is properly seated. I repush to get back to the double dashed line after a few taps we get a pressure measurement of 10. With a 5% error. So the eye care tonometer does not require numbing the patient's eyes, which as a corneal specialist I find particularly helpful that if my technician checks the eye pressure I can still subsequently check the corneal sensation, whereas were they to use the Goldman or the tonopen, I would not be able to check corneal sensation later on in the exam. The eye care tonometer has a upper orientation bar that can be adjusted with this knob. That is designed to rest against the patient's forehead. In this case, we've already placed the tip into this lower part for measurement of intraocular pressure, which will essentially bounce off of the patient's cornea. The lower button is pressed to actually extend that and check pressure. Here it's giving us an error because it's not hitting anything when it extends. We can reset or just actually in this case proceed by again resting that against the patient's forehead, that upper bar, once aligned repeatedly pressing to bounce that off of the patient's cornea and we get our output. In this case, 12.