The visual field test checks the range of your peripheral vision by measuring the ability to see pinpoints of light that flash inside the testing globe. The device measures the area that you can see up/down/left/right while the patient focuses straight ahead.
What is the visual field test used for?
Glaucoma Screening & Evaluation: Loss of peripheral vision is often an early sign of glaucoma. We repeat this test once a year so the doctor can evaluate treatment plans and the progression of the disease.
Lid Drooping (Ptosis): If your eyelids have started to droop, the visual field can see if you have any loss of vision due to the drooping lid.
Effects of Medication: We can also test for effects of medications, such as plaquenil, which can affect the central retina.
Optic Nerve Conditions: The visual field can help evaluate your vision affected by stroke, optic neuropathy, tumors and injury.
What is a normal visual field?
The definition of a visual field is the space or range in which objects are visible to eyes that are fixed in place, focused on an object.
The normal human visual field extends to approximately:
Inward: 60 degrees nasally
Outward: 100 degrees temporally
Up: 60 degrees above
Down: 75 degrees below
Taking the test:
The testing device is a large globe or bowl, with pinpoints of light that flash on and off during the test. Patients press a button each time they see a light flash inside the globe. The lights flash in varying patterns and different levels of brightness. It’s kind of like a video game!
During the test, the patient is asked to focus on an amber light directly in front of them, so that we can accurately measure the range of vision all around. We test one eye at a time, so the eye that is not being tested is covered with an eye patch. The test takes about 5-8 minutes per eye. Testing time can vary from patient to patient.
If you have questions about any of the tests that we do, please ask us in person, text or send us an email! We are happy to explain how we use each device to better care for your vision.
Two years have passed since the start of Moran Eye Associates in Fountain Hill! We are so happy to have welcomed Dr. Moran’s former patients and many new patients too!
Although our practice is young, we’ve all been together for a long time. Here is a look at Moran Eye Associates by the numbers.
Dr. Moran has been practicing in the Lehigh Valley since 1990. He started Moran Eye Associates in April of 2017, where he continues to provide quality, compassionate medical and surgical care for his patients.
The numbers add up to an experienced team of eye care professionals that continue to work together to give our patients quality eye care. You can benefit from our commitment to our patients by making an appointment for yourself and your family!
Your annual eye exam offers a look at more than just your vision.
You may have heard that the eyes are the windows to your soul, but did you know that they provide a look at your overall health as well.
Your dilated eye is an open window where blood vessels and nerves can be clearly seen. The view through the open pupil is a unique means of detecting health issues including:
Dilated Eye View
Hardening of the Arteries
High Blood Pressure
Your eye doctor may be the first to alert you to developing health problems.The American Optometric Society reported that in just one year, over 250,000 patients were diagnosed with diabetes after their optometrists reported concerns. Early diagnosis and treatment are vital for the health and vision of diabetic patients.
Changes or fluctuation in your vision may also be an indicator of a larger health problem. Report blurred vision to your eye doctor, it may be a sign of increased blood sugar levels and the need for medical treatment.
Uncontrolled diabetes can have severe consequences. Loss of vision due to diabetic retinopathy is a primary concern. Diabetes is the leading cause of blindness in people under the age of 74, so a regular schedule of dilated eye exams are important for diabetic patients. If you know someone who is diabetic,or has a family history of the disease, make sure that they are getting the eye care that they need.
Our goal is to keep you healthy!
Dr. Moran and Dr. Tang not only provide excellent vision care, they are essential partners for your general health and well-being. If you are overdue for a vision exam, don’t delay. Call us to schedule your appointment, Monday through Friday from 8 am to 4 pm.
The certificate has arrived, so now it is official!
Bobbi Spain has received her COA designation from the International Joint Commission on Allied Health Personnel in Ophthalmology (JCAPHO). Bobbi is our surgical coordinator, who works with LASIK and cataract patients. She was surprised to see that the package from JCAPHO also included an official COA card, pin and patch!
To provide the best care for our patients, the staff at Moran Eye Associates makes learning a priority. Every member of the team takes part in monthly compliance training, as well as taking on additional programs of study in general ophthalmology, low vision, dry eye management, regulations and billing. They also attend industry conferences each year to keep up with advances in technology and and patient care.
In 2017, Mandy, Beth and Dr. Moran attended the American Academy of Ophthalmology (AAO) conference in New Orleans. In April of this year, Bobbi and Cindy accompanied Dr. Moran to the American Society of Cataract and Refractive Surgeons (ASCRS) in Washington, D.C.
Bobbi joins Mandy and Cindy, who already have their COA certificates on display. Mandy received her COA in 2017. Cindy has been a COA since 2004. In order to maintain certification, a total of 18 credits in continuing education must be completed every three years. Eighteen credits is an easy to complete at Moran Eye Associates, where continuing education plays a key role in our success!
Moran Eye Associates now offers Cocoons Eyewear, our doctors’ choice for professional-grade fitover sunglasses. Designed specifically to fit over your prescription glasses, these lightweight sunglasses come in a variety of tints, styles and sizes to fit your vision needs. Stop in our office to see for yourself!
The unique design of Cocoons isolates your eyes from the elements, keeping you free from glare, harmful UV rays, and fluctuating light conditions. These lenses and the frames work together to keep your eyes protected.
Eliminates glare for people with normal vision and low vision.
Frames come in multiple colors
These polarized glasses offer UV400 protection, scratch resistant technology, and a one-year warranty. If glare is a problem, polarized lenses provide a significant reduction in glare compared to regular tinted sunglasses. Most sunglasses sold at the store are not polarized unless specifically indicated.
Cocoons are designed to reduce glare and to enhance vision. The specialized color options were developed to target different issues. We recommend that you try on the different lens types to see what works best for you.
Gray: for natural color definition and general daily use. Reduces light sensitivity while eliminating reflected surface glare.
Amber: filters scattered blue light to increase contrast and provide improved depth perception in varying lights conditions. Amber is the preferred color for driving.
Copper: filters scattered blue light and minimizes color distortion to deliver enhanced contrast and color definition
Yellow: ideal for low light conditions. Maximizes contrast for improved definition and depth perception while eliminating glare. Best in dusk and dawn light, but not the best option for general daily use.
Blue Mirror: maximizes glare elimination and filters additional blue light for improved contrast while delivering true color definition.
Recommended for Nighttime Driving – Twilight Lenses
Nighttime driving has unique vision issues, due to glare from headlights and reduced available light. Cocoons have developed a special Twilight lens that we recommend. These specialty Twilight lenses help to solve night driving issues because of their anti-reflective coating.
Dr. Moran explains the benefits of the Twilight lenses, “The key to better nighttime vision is anti-reflective coating. Although yellow and amber lenses help with contrast and clarity, they reduce the available light, which can make it hard to see well when you are driving. You have to balance the benefit of increased contrast with the reduction in brightness. Polarized lenses work well in the natural daylight, but don’t help with artificial lights from headlights and streetlights at night. Additionally, polarized lenses cut out 50% of light, which is counterproductive in the dark.”
The Twilight lens system blocks 100% of harmful UV light and 60% or more of harmful High Energy Visible (HEV) blue light while providing 93% overall visible light transmission. The unique filtering properties of these HEV filters effectively reduce scattered blue light and improve contrast without compromising overall light transmission. The lens system is protected by a one-year scratch resistance warranty and includes an anti-reflective coating to minimize glare and halos created by artificial light sources.
Help for patients who have heightened photophobia (light sensitivity).
Low-vision patients may benefit from a different colored tints to give them the best acuity. Sometimes, the tint correlates with specific medical conditions, but most of the time, it is a matter of personal preference. All of these lenses reduce glare and heighten contrast, which is important for low-vision patients. Additional color options include.
Cocoons Offer Color Options for Best Vision
Boysenberry (pink): reduces glare and heightens contrast. Blocks 90% of blue light.
Hazelnut (brown:) reduces glare and heightens contrast. Blocks 98% of blue light.
Orange: enhances contrast by intensifying the background to improve object definition and clarity. Blocks 100% of blue light.
Lemon (yellow): enhances contrast and visual acuity in low light conditions. Blocks 40% of blue light.
Whatever your vision needs, we can help you to see your best. We offer the latest technology to help keep your eyes healthy and to protect your vision for years to come.