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The majority of cataract surgeries performed in the U.S. are done with a local anesthetic and IV sedation.
The local anesthesia may be accomplished in one of two ways: either an injection of anesthetic around the eye or anesthetic eye drops placed on the eye, often combined with an injection of a small amount of anesthetic into the front of the eye at the very beginning of surgery.
The injection of anesthetic around the eye generally produces a deeper anesthesia for the surgery than the topical method but it also comes with increased risk. There is a very small chance of potentially serious bleeding behind the eye and a rare chance of inadvertent penetration of the back of the eye with the injection needle.
The topical anesthesia has lower risk but does not provide quite as deep of an anesthesia, although the overwhelming majority of people having cataract surgery with a topical anesthetic do not experience any significant pain during the procedure.
The other difference between the two anesthesias is with that topical anesthesia you maintain your ability to move your eye around whereas with injection anesthesia the eye muscles are temporarily paralyzed so your eye doesn’t move during the surgery. When you have topical anesthesia it is important for you to try to stare straight ahead at the light in the microscope above you. Most people accomplish this quite easily.
Along with the anesthetic to the eye, in most cataract surgeries an anesthetist will also give you some
Nowdays, many people prefer shopping online to shopping in stores for many of their needs.
With technology constantly improving and evolving, people like the convenience of shopping online. Whether it’s clothing, electronics, or even food, you can easily find almost everything you need on the Internet.
Eyeglasses, unfortunately, are no different. Many online shops have been popping up in recent years, offering people that same convenience. But what they don’t tell you is that it comes at a price, and this article’s purpose is to shine a light on the negatives of shopping online for eyeglasses.
Here are some important reasons to avoid the temptation of ordering glasses online.
- Accuracy- Instead of saving the most important point for last, we will focus on the main reason that ordering eyeglass online is not the best choice. Product accuracy is a huge reason that the online market has not completely taken off. Every person who needs eyeglasses needs to understand the process for how their prescription is obtained in order to truly understand why shopping online is not ideal. It is called an eyeglass prescription for a reason. Your ophthalmologist or optometrist is prescribing your lenses as if they were prescribing any form of medication. To take that prescription and hand it over to a website that does not require licensed workers to interpret the prescription is not the wisest choice. Equally as important as the prescription itself are the pupillary distance (PD) and the optical centers measurements.
