It could also cause retinal tears or detachment. 2 is the tension that the ciliary body can place onto the vitreous as it pulls can cause vitreous or retinal complications or issues such as PVDs. However, with too much, you might get some headaches or brow aches, which are very common with some miotics. You might get a bit of a myopic shift with that movement. Some of the time it might be a little beneficial. A lot of the issues with the miotics are that they also cause the ciliary body to contract or spasm and move. We’re trying to develop something to help us expand that range of vision but that limits adverse events or complications. That pinhole optic is what we’re looking for to help us see up close.īarry Eiden, OD, FAAO, FSLS: Dr Mah, we know miotics make pupils smaller. We have to be able to take advantage of the physics of the eye. There are so many complex processes going on at the same time to make us see. Let’s be honest, the 3 of us specialize in something that’s the size of a golf ball, and some of us specialize in something even smaller than that. It’s a pretty simplified way of using it.Īll the stuff that we do is funny because a lot of people say, “I’m just going to go get an eye exam.” It’s amazing how much complexity there is to the focusing of light. With miosis, we’re trying to take that pupil and constrict it, so we have enough parallel light rays and clear vision regardless of your ability to focus or how far away the target is that you’re looking at.
Because they come in parallel, they essentially have an infinite focal point, and they don’t blur. When the light comes through a small enough hole, it doesn’t act as a big wave anymore, but those light beams start to act in parallel.
Miotic Selectivity in the Management of Presbyopia EP: 7. Miotic Treatment Options for Presbyopia EP: 6. Targeting Pupil Size for Presbyopia Management EP: 5. Using Miotic Agents for the Management of Presbyopia EP: 4. The opposite happens when you have miosis: the pupil constricts, and less light comes in. Impact of Presbyopia on Mechanism of Ocular Accommodation Now Viewing EP: 3. Imagine the aperture of a camera: as the hole opens, more light comes in. The pupil can get smaller, which is miosis, or larger, which is mydriasis. Morgenstern, OD, FAAO, FNAP: For those of you who aren’t comfortable with the term miosis, we have 2 actions that happen with the pupil. Andy, how does that whole mechanism work? What’s the relationship between both the miosis and the pupil size change, as well as the effect on other elements of the eyes that some miotics might have?Īndrew S. But the central point of our conversation is the role of eye drops, specifically miotics to affect pupil size to help individuals with presbyopia see better up close. Barry Eiden, OD, FAAO, FSLS: We’re talking about presbyopia and things that happen to our focusing system as we age-the lens hardening, and so on.
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