Corneal Toric GP Lens

Thomas Quinn, OD, MS, FAAO talks about corneal toric GP lenses.

Cara Moore: Hi everybody. Thanks so much for joining us for Optometry TV. I’m Cara Moore and I’m joined now by Dr. Thomas Quinn. Thanks so much for being here.

Dr. Thomas Quinn: It’s my pleasure Cara.

Cara Moore: So we are here to talk about corneal toric GPs. And more specifically, let’s start with patients with high astigmatisms. You would say that they’re underserved. Why is that?

Dr. Thomas Quinn: I would say yes they are because of the challenges involved with fitting a specialty contact lens for that kind of a patient. It’s not that hard. And that’s what the course is about. The commonly when practitioners are faced with someone with high astigmatism, we’re intimidated by the specialty lens, we either would prescribe spectacles, which if you’re going to have peripheral distortion is more likely to be present with someone with high astigmatism or we fit them with a soft lens. Any rotation, that lens, the vision is going to drop when really the right thing to do for that patient oftentimes is a corneal toric GP lens.

Cara Moore: Okay. So that begs the question then, how to fit the lens.

Dr. Thomas Quinn: So the way I approach it in my course is talk about how to design the back curve to fit in an ideal fashion on the surface of the eye. If we get that we’re going to get enhanced comfort, we’re going to get better health, and better vision because the surface of the lens will be stable along the line of vision. So we start there and then we back out and say, okay, what strength is needed in the lens to give the patients the right vision? I got the good fit now I want to get the vision and then we take one other little baby step and it’s very simple, to look at the lens and figure out what type of toric design it is. A lot of people will hesitate to fit a toric lens because there’s a lot of different designs, there’s back surface toric, front surface toric, by toric, which one do I fit. Well with the approach that I’m going to suggest practitioners use, you’re back into that so it’s not a decision you make up front. It’s something that just reveals itself in the end. And that’s important to know because you need to know what design you’re working with when it comes to troubleshooting, it tells you what steps to take to fix any potential problems that may arise.

Cara Moore: So what’s your message for practitioners?

New Speaker: My message is to step up and do what’s right for the patient. There are colleagues of mine who I respect greatly, but they will take a patient in and fit them with the highest stigmatism and fit them with a soft lens because it’s available, but they know in their heart that that’s not the best solution for the patient because of the rotational instability we talked about. A [inaudible] toric lens will sit on the eye like a saddle fits on a horse, and with that will come visual stability, enhanced visual performance for the patient. So step up and recommend a toric GP lens if that’s the right thing to do.

Cara Moore: Bit of a challenge then.

Dr. Thomas Quinn: That’s exactly, challenge on.

Cara Moore: All right. Thank you so much Dr. Quinn.

Dr. Thomas Quinn: You’re welcome. Thank you Cara

Cara Moore: We appreciate you being here. And thank you for watching Optometry TV.

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