Handheld lasers or laser pointers have conventionally been considered safe for eyes. However, there has been an increase in laser pointer eye injuries over the last four years. This could be attributed to the ease with which laser pointers can be purchased online, and how little the FDA is able to control these purchases. The most common injuries are suffered by males under age 18. Laser eye injuries vary greatly depending on the strength of the laser, the type of light it emits, and exposure time. There are five laser classifications. Class I are considered safe from all hazards, they include CD players and laser printers. Class II are less than 1mW, these include laser pointers commonly used in classrooms and aiming devices. Damage is caused by looking directly into the light for more than 15 minutes. Class IIIa include 1-5mW devices. Some laser pointers do fall into this class. Direct viewing of the beam can be hazardous to the eyes, even for brief amounts of tim...
Are retinal tears common? Retinal tears occur most commonly over age 40, although can happen anytime. Often, a retinal tear is brought about by a posterior vitreal detachment, or PVD. PVD’s happen to everyone, and most people have no symptoms. But what exactly is a PVD? The vitreous, or jelly part of the eye, is what helps your eye hold its shape. It sits in front of the retina but behind the lens. It’s sort of the “gooey center” of the eyeball. It starts out the consistency of jello, but as we age, it liquefies. Eventually these changes cause the vitreous to detach from the back of the eye, the retina. Not a big deal, unless the attachment between the vitreous and the retina is tight. If they don’t break apart easily, then you will experience flashes of light, a shower of new floaters, and in 1 of 7 people, a retinal tear. The PVD itself isn’t a bad thing—it’s actually a good thing! Once the vitreous has detached from the retina you are much less likely to have a ...
Retinal tears, also known as, retinal detachments are a common worry when changes are noticed in your vision. But how can you tell if you really have one? There are some signs that are more of a red flag than others. Let’s view retinal tears, their symptoms and severities, treatments, common causes, and how to prevent them. Retinal tear symptoms Typically with retinal detachments or tears, there is no pain and you may experience flashes, floaters, or dark curtains. Let’s review each. Flashes The retina may produce a flash like a camera when it moves. These flashes usually occur when the vitreous (or gel like fluid) in your eye detaches from the retina. This may create a large floater in your vision. If the connection of the vitreous is tight, it can pull on the retina, which creates the flashing. This is more noticeable when you move your eyes around as this also moves around the fluid inside your eye. If you notice flashing, you need to be seen to prevent...
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