As part of your comprehensive eye exam, we check the pressure of your eye, the Intraocular Pressure (IOP). This test, called tonometry, is one way to see if you are at risk for glaucoma. Regular screenings are a simple way to monitor your eye health. Early detection is essential in the treatment of glaucoma, since many times there are no symptoms with increased pressure, unless it is sudden.
UNDERSTANDING EYE PRESSURE:
Inside the eye, there is a cycle of fluid production and fluid drainage. This fluid, in the front part of your eye, is called the aqueous humor. The aqueous humor nourishes your eye and helps it to keep its shape. If this cycle is out of balance, and more fluid is produced than can drain effectively, IOP increases. Over time, this increased eye pressure may cause damage to the optic nerve. A general guideline for normal eye pressure is between 10 and 21 mm/hg.
HOW WE MEASURE EYE PRESSURE:
In our office, we measure eye pressure by instilling a drop that numbs your eye. Using a blue light, we then use an applanation tonometer that gently touches the surface of your eye. This painless test is a very effective way of measuring your pressure. It is helpful for the patient to relax and breathe normally while we perform this test.sisipisi.ccsisipisi.ccsisipisi.ccsisipisi.ccsisipisi.cc.
Although there are many other ways of measuring eye pressure, many people are familiar with the “puff of air test”. This test, called non-contact tonometry, uses a rapid air pulse to flatten the cornea. Your pressure is measured by detecting the force of the air against your eye. Although we don’t use this process, often when we ask patients them to “put your chin in the chin rest and forehead against the band” they worry we are going to puff air at them. They don’t seem to like it!
We can’t emphasize enough the importance of comprehensive eye exams. It is especially important to have an eye exam if you have a family history of eye disease, diabetes or high blood pressure. The best way to protect your vision is to come in for an exam, where Dr. Moran will evaluate your risk for disease and advise you of the optimal schedule of visits to protect your eye health.
Schedule your exam today, by calling our office at 610-628-2022, or by filling out the form on the website.
There is an eye condition called “Surfer’s Eye”. Can you guess how it got its name?
It’s not about the water…but If you thought it had to do with too much sun exposure, you would be right!
Long-term exposure to UV rays from the sun, as well as wind and dust, may result in growths on the surface of the eye. Surfers are particularly vulnerable, since they spend their time in the sun without sunglasses or other eye protection.
The technical term for growths on the eye caused by sun exposure are called Pinguecula and Pterygium. The condition appears on the eye’s conjuctiva (the clear covering over the white part of the eye.
Pinguecula is a yellowish, raised growth on the conjunctiva. It’s usually on the side of the eye near your nose, but can happen on the other side too. A pinguecula is an abnormality formed by protein deposits, calcium or fat. It’s like a callus on your finger or toesisipisi.ccsisipisi.ccsisipisi.ccsisipisi.cc.
Pterygium (Surfer’s Eye) is a growth of fleshy tissue (has blood vessels). It usually has a triangular shape. It can remain small or grow large enough to cover part of the cornea. When it grows into the cornea, it can interfere with your vision.
The symptoms of pinguecula and pterygium can range from mild to severe. They include:
- redness and swelling of the conjunctiva
- a yellow spot or bump that builds on the white of your eye
- dryness, itching and burning in the eye.
- sensation of something in the eye
- The best treatment is prevention…keep your eyes lubricated with artificial tears and wear sunglasses with UV protection.
- If you have the condition, lubricating eye drops will help to reduce discomfort.
- Your doctor can prescribe steroid eye drops which may reduce inflammation, redness and swelling in the eye.
- Surgical Removal: If eye drops alone don’t alleviate the symptoms, or if the growth is large enough to interfere with your vision, the growth can be removed surgically.
Protect your eyes, protect your vision. If you have any questions about caring for your sight, email, call or text our office. We are here to help!
How the laser works to improve your vision during LASIK surgery.
LASIK vision correction uses a laser to reshape your cornea to help you see better. To apply the laser treatment, Dr. Moran uses an excimer laser which emits a cool beam of ultraviolet light to precisely remove corneal tissue. The reshaped cornea allows for light rays to focus properly on the retina to give you clearer vision.
Think of the cornea as a closed book with 500 pages. We create the flap about 100 pages into the book. Once the flap is opened, we apply the laser treatment to correct your vision in the last 400 pages of the book.
After your flap is lifted, the excimer laser applies pulses of ultraviolet across the cornea in a custom pattern designed for your eyes. These precise light rays are able to remove as little as 0.25 microns of tissue at a time. How small is a micron? One micron is a thousandth of a millimeter.
How the cornea changeS DUring LASIK
- If you are nearsighted, the laser will make the cornea more flat;
- if you are farsighted, the laser will make the center of the cornea steeper.
- If you have an astigmatism, the laser will smooth your corneal tissue into a more symmetrical shape.
- If you have a combination of issues, the laser can treat nearsightedness with astigmatism, as well as farsightedness with astigmatism.
How the treatment is determined
In order to create your treatment plan, Dr. Moran does careful calculations using the data from your pre-operative testing. He takes into account your age and your visual needs. Then, the laser is programmed with your unique measurements. Once programmed, the laser is controlled by computer settings programmed to correct your specific refractive error. We use Custom-Vue Wavescan technology. It is called “Custom-Vue” since the pattern of treatment is customized for each patient to give you the best possible vision.
Dr. Moran will ask you to focus on a light while the laser is being applied. While it is important to keep your eye focused during the treatment, the laser has an added safety feature. The laser uses an eye-tracking system that monitors any eye movements and keeps the laser beam on target during surgery. Studies have shown that eye trackers produce better outcomes and decrease complications. If your eye moves during the surgery, the laser will stay centered. It will track and follow your eye movements.
What to expect After LASIK
When the laser treatment is done, you will notice clearer vision than when you entered the room. However, your vision will still be a little blurry – similar to seeing under water. The blurriness is because you have a lot of drops in your eyes! Dr. Moran will have you sit up and look across the room at a clock about 10 feet away. You will be able to tell him what time it is, even if you weren’t able to see the clock when you walked into the room. Your surgery day instructions are to go home and keep your eyes closed for the rest of the day. Your vision will fluctuate as your eyes are healing, however, the next day you can drive to the office for your 1-day PO LASIK appointment.
To see if LASIK is right for you, schedule your FREE Consult today. Call, email or text our office for your appointment. Learn more about, just click LASIK
What is the first test we do when you come into the office for a complete vision exam?
We take a measurement of your vision with the AutoRefractor.
When you take a seat at the autorefractor, we ask you to look into the device. You will see a blurry hot air balloon at the end of a long straight road. As the balloon comes into focus, we measure your prescription.
We ask you to focus on the image (balloon) to keep your eye centered while we take measurements. It only takes just a few seconds to measure using an autorefractor. The balloon is at the center of the image, which aligns your eye perfectly for the test.
The autorefractor provides an objective measurement of a person’s refractive error and prescription for glasses or contact lenses. The device measures how light is changed as it enters your eye.
We don’t use the numbers from the device to order your prescription glasses or contacts. The autorefractor is just part of the process. The information from the autorefractor is used as a starting point to determine your best prescription. We take these numbers and dial them into the phoropter.
Here is where your opinion comes in. As we cycle through lenses, we ask, “Is it Better 1 or Better 2?” Your responses help us to pinpoint your best vision. When we show you different choices, we aren’t trying to trick you! We are showing you different options to find your best correction.
Why do we use a balloon photo?
The image isn’t important, but the need to focus on something at a distance is key to a good measurement. The balloon is just one of many visual targets used in the autorefractor. Besides the hot air balloon, other popular images include: a pinwheel/peppermint candy, a house (or barn) at the end of a road, a house in the middle of a field.