Prism Correction

Prism Correction

A majority of the world’s population suffers from some sort of vision impairment that needs correcting. If you have ever received a glasses prescription you may have been recommended prism lenses to help correct your vision. Although prisms are not used in every prescription for glasses they are used in certain types of vision correction. This blog will help explain the purpose of prism correction and how it works. Double Vision Prism correction is mainly used to help people who experience double vision. When someone experiences double vision, they see two images of a single object at the same time. These symptoms can be mild, as some people only see small fragments of a second image making what they are looking at seem fuzzy. This kind of vision impairment is called diplopia and is mostly treated through prism correction. Another reason for using prism correction is to help patients adjust their eyes to a proper formation. Patients may have difficulty moving their eyes inward or outward together and prism correction can help them make that adjustment. Prism Lenses Prism lenses are different from optical lenses and therefore are used for different purposes. Optical lenses help people who suffer from nearsightedness, farsightedness, or astigmatism. Optical lenses will bend light for us to be able to view objects better. Prism lenses work in a similar way by bending and refracting light so that you are now able to see an object as a single image instead of two. The lenses will trick your brain into interpreting what you are seeing so that your double vision is corrected. As with other types...
Treatment for Keratitis

Treatment for Keratitis

Keratitis can be summed up as a general inflammation of the cornea. The cornea is responsible for about sixty percent of your total optical power. Inflammation of the cornea can cause a multitude of problems from very minor to total blindness if not treated properly. Here, we will discuss some common causes of keratitis and the potential damage it can do to you eyes. Causes There are a number of ways someone can suffer from keratitis. Injury is one way someone can suffer from non infectious keratitis. Any impact to the cornea such as a scratch can result in inflammation. If the scratch on the cornea is not treated properly, bacteria can enter the cornea and cause it to become infected. Other bacteria and parasites such as acanthamoeba can cause keratitis. Acanthamoeba can sometimes live on the surface of a contact lens that has not properly been cleaned or taken care of. Acanthamoeba lives in water and usually infects the eye when someone washed their contacts with tap water instead of the recommended solution. Wearing your contacts for a prolonged period of time can cause keratitis. General neglect of contact lens hygiene can cause an array of vision problems including keratitis. Impairments of one’s eyelashes or eyelids can cause a type of noninfectious form of keratitis. Eyelashes that could be growing inward have the risk of damaging or scratching the cornea. Similarly, entropion, which is a condition when your eyelids are rolled inward runs a risk of damaging to cornea as well. Treatments Treatment for keratitis can come in a variety of ways depending on if it is infectious...
Ocular Photography

Ocular Photography

Opthamologists are constantly using technology to gain a better understanding of what diseases are plaguing the eye. If you have ever been to the eye doctors before for a procedure then you have probably had pictures taken of your eyes. Ocular photography or external ocular photography serves a crucial purpose in diagnosing and identifying eye diseases and problems. This article will give an overview of how external ocular works and the capabilities it has to help patients and medical professionals. Equipment There is a variety of equipment that can be used during eye exams to diagnose a wide range of problems within the eye. Some basic and common pieces of equipment that you may have seen or heard of before include a Phoropter, Retinal Camera, and Slit Lamp. Phoropter – also spelled Phoroptor is one of the most common pieces of equipment people think about when they imagine an eye doctor’s office. A Phoropter is used to test an individual’s vision and identify if they may suffer from something like nearsightedness, farsightedness, or astigmatism. The Phoropter gives the doctor the ability to adjust the intensity of a lens on the fly allowing them to analyze how your vision is corrected through the different intensities. The patient plays a integral part in this because they ultimately decide what lens they think works best for their vision by answering questions from the eye doctor as they change the lens intensity. Retinal Camera – A Retinal Camera is used to view the back of your eyes including the retina and optic disk. The optic disk holds the optic nerve which is responsible...
Small Incision Cataract Surgery

Small Incision Cataract Surgery

Cataracts are the leading cause of blindness in people. Cataracts have a variety of symptoms that can worsen over time — blurriness, double vision, difficulty seeing at night or in light, and colors that seem faded. Cataracts are a progressive ailment and should be treated properly once symptoms are being noticed. There are a number of ways that cataracts can be treated. Initial options to treat cataracts are receiving a stronger prescription on your glasses, anti-glare sunglasses, or even magnifying lenses. In more progressive cases of cataracts, a surgical procedure may need to take place in order to restore proper vision. One of the surgeries that can be performed is called a Small-incision cataract surgery, (SICS) sometimes referred to as manual small-incision cataract surgery or sutureless extra-capsular cataract extraction. This article will briefly talk about what cataracts are and how a SICS procedure can help restore vision. What Are Cataracts? Every person has a lens in their eye that helps them filter light and perceive objects. Cataracts cause your lens to become cloudy, ultimately affecting your vision. Cataracts can be caused by a number of reasons why people get cataracts, but the main cause is age. The proteins in your eye that make up the lens start to deteriorate as you age and is a gradual process. Other causes can include Diabetes, eye injury, medications, or prolonged sun exposure. I severe cases, a surgery like a SICS can be performed. Small-Incision Cataract Surgery A SICS is a proficient and cost-effective procedure that can replace your natural lens with an intraocular lens or IOL. The surgeon will have to make...
Smart Contact Lenses

Smart Contact Lenses

Recent advancements in technology have sparked the innovation of smart wearable tech. Smart watches and Virtual Reality headsets are just two examples of very popular smart technologies that have taken off over the last few years. Smart contact lenses are on the rise and in development with many tech companies. Smart contact lenses open a plethora of doors for individuals and have a significant amount of potential to help people in various ways. Health A company called Medella Health has recently been working on contact lenses that could potentially help people identify their blood glucose level. The way the contact lens would track the glucose level would be through tears of the individual. Once the information is gathered, the micro-antenna in the contact will send a message to the individual’s smartphone with the information. The contact lens has a sensor and a chip installed in it to be able to track the information. Another company called Verily is starting to create similar smart technology for patients, but instead of it being a contact lens, the product would be an injection into one’s eye. Past and Future Information gathering smart lenses are still in the preliminary stages. We have come a long with wearable smart technology before. Smart contact lenses have helped people cure their color blindness and implementing multi-focal lenses instead of monofocal. The next step would be gathering information from the human body to determine health risks such as the  low-blood-sugar which companies like Medella and Verily are developing now. Thinking even further in the future would be to incorporate Augmented Reality into contact lenses. Augmented Reality (AR)...