• Questions to Ask About Your Age-Related Macular Degeneration

    According to the National Eye Institute, age-related macular degeneration is a leading cause of vision loss for people aged 50 and older. For some people, AMD progresses slowly, with vision loss not occurring for a period of time. In other people, AMD progresses very quickly, leading to vision loss in either one or both of the eyes.

    Age-Related Macular Degeneration - Dr. Hornfeld - NYC

    What causes AMD?

    The macula is a small spot located in the center of the retina in the back of the eye. Made of millions of light-sensing cells, the macula is the most sensitive portion of the retina, crucial for providing sharp, central vision. If damage occurs to the macula, the retina will have difficulty converting light into electrical signals to the brain, making it difficult for the brain to translate everyday images.

    What are the symptoms for AMD?

    If the macula is damaged, someone’s center field of vision may begin to appear blurry, dark, or distorted. Over time, this blurred area can grow larger, leading someone to develop blank spots in his or her central vision. He or she may also find that everyday objects no longer appear as bright and sharp as they used to be. Even though AMD doesn’t lead to complete blindness, it can interfere with daily activities, such as distinguishing faces, reading, writing, or cooking.

    What are the treatment options for AMD?

    Currently, there is no treatment for age-related macular degeneration , however there are ways for someone to reduce his or her risk. An ophthalmologist can assess a patient’s risk of AMD by providing a comprehensive dilated eye exam each year. This can also help determine whether or not AMD is progressing. People who are at risk of AMD can lower their risk by exercising, avoiding smoking, and eating nutritious foods such as green, leafy vegetables and fish.

    If you would like to learn more about risk factors for age-related eye diseases, such as macular degeneration and cataracts, schedule a meeting with Dr. Mark Hornfeld. Dr. Hornfeld is a NYC ophthalmologist specializing in cataract surgery and glaucoma treatment. You can reach our office by dialing (646) 502-4142.

  • Take a Tour of Dr. Mark Hornfeld’s Brooklyn Office

    Dr. Mark Hornfeld is a 1988 graduate of The New York College of Osteopathic Medicine in Old Westbury, New York. In addition, Dr. Hornfeld has more than 15 years of experience providing private practice ophthalmology services in New York City. Our Brooklyn office strives to provide patients with the most accurate results by utilizing the most technologically advanced equipment.

    In this video, Dr. Mark Hornfeld takes you on a tour of his Williamsburg office, beginning at the patient check-in point. From there, he shows what kind of equipment you would be using in pre-examination testing as you are screened for refractive problems and cataracts. All of the results from these tests are electronically stored with cloud technology, providing Dr. Hornfeld with real time images.

    Dr. Mark Hornfeld specializes in cataract surgery, glaucoma treatment, and refractive surgery. To schedule an appointment at our New York City office, call (646) 502-4142.

  • Exploring the Services Provided by an Ophthalmologist

    Ophthalmologists, optometrists, and opticians all have an important role in helping patients protect eye health, however each of these professionals have different levels of training and experience. An ophthalmologist is a medical doctor trained to provide patients with a wide range of eye care services , including contact and glasses prescriptions as well as complex, delicate eye surgery. A number of ophthalmologists also specialize in scientific research in the field, helping discover causes and treatment for common eye diseases.

    Dr. Mark Hornfeld, Ophthalmologist

    Glaucoma treatment

    A patient should visit an ophthalmologist if he or she experiences decreased vision, flashes of light, haloes, or eye injury and eye pain. People who are of African or Hispanic decent have an increased risk for developing glaucoma, so they should meet with an ophthalmologist even if they aren’t experiencing symptoms. Even though glaucoma can’t be cured, ophthalmologists can work to reduce damage and prevent vision loss in patients with early signs of glaucoma.

    Cataract surgery

    A cataract occurs when a person’s naturally clear lens begins to cloud, making it difficult for the lens to focus light onto the retina. As a result, light rays can’t focus on the layer of light-sensing cells in the back of the eye and the person will experience blurred vision. Ophthalmologists can help restore someone’s vision by removing the cloudy lens and replacing it with a permanent intraocular lens implant.

    Lasik surgery

    Lasik is an incredibly popular surgery that helps correct vision problems for people who are nearsighted, farsighted, or who suffer from astigmatism. During a Lasik procedure, the ophthalmologist will reshape the clear front portion of the eye, enabling light to travel through the lens and focus on the retina in the back of the eye. As a result, patients no longer need to rely on their eyeglasses or contact lenses.

    Dr. Mark Hornfeld is a New York City based ophthalmologist who specializes in cataract surgery, glaucoma treatment, and refractive surgeries such as Lasik. Dr. Hornfeld is dedicated to using the most technologically advanced equipment to help patients achieve accurate results. For more information, give us a call at (646) 502-4142.

  • Understanding Eye Floaters

    Woman's eye

    If you’ve noticed small, moving specks or imperfections in your vision, you likely have eye floaters. These typically appear as very small, dark spots; however, some people report seeing floaters in the shapes of strings or cobwebs. As you shift your gaze, the floaters move in your field of vision. In most cases, eye floaters develop as the vitreous within the eyes changes in consistency. You’re more likely to see eye floaters if you have diabetes, if you’re over the age of 50, or if you’re nearsighted.

    In certain circumstances, eye floaters may indicate a more serious underlying problem that necessitates an emergency trip to the ophthalmologist’s office. If you experience an abrupt increase in floaters, see flashes of light, or suffer from the sudden loss of peripheral vision, see an ophthalmologist right away, as these could be symptoms of retinal detachment.

    Even when they’re not an emergency, eye floaters can be bothersome. Explore your eye floater treatment options at the NYC office of Dr. Mark Hornfeld. You can contact us at (646) 502-4142 or visit our website to learn more about our ophthalmologic services.

  • Take a Tour of the Surgicenter with Dr. Hornfeld

    Watch the latest video from Dr. Hornfeld as he gives a tour of the surgicenter and explains the state-of-the-art technology available to him when he operates here. Some of this technology includes the Lumera microscope, a 3D monitor by Sony and a machine that measures what strength lens to put in the eye in real-time.

    For more information about Dr. Mark Hornfeld, visit our website .

  • Why Controlling Your Blood Glucose Levels Is So Important To Your Vision Health

    People with diabetes need to take extra steps to safeguard their health because they’re at an increased risk of a wide array of medical problems. Your diabetes care team should include an ophthalmologist . Meet with your ophthalmologist to determine how often you should have your eyes examined and to discuss the short-term and long-term effects of poorly controlled blood sugar levels when it comes to your eye health.

    Attractive blue eyes looking up

    Short-Term Effects of High Blood Sugar

    Ideally, your blood sugar levels should be in the 70 to 130 mg/dL range prior to eating and below 180 mg/dL a couple of hours after eating. If your blood sugar levels are too high , the lenses of your eyes are subject to swelling. This causes blurry vision, which may interfere with your ability to perform day-to-day tasks. If you do develop blurry vision, check your blood sugar immediately and see an ophthalmologist as soon as possible. By taking steps to control your blood sugar, you can bring your vision back to normal. However, it can sometimes take up to three months for your vision to stabilize.

    Long-Term Effects of High Blood Sugar

    If your blood sugar levels are poorly controlled for a long time, you run the risk of serious health complications, including permanent eye damage. High blood glucose damages your body’s blood vessels. Diabetic retinopathy occurs when the blood vessels of the retina sustain damage. The symptoms develop gradually; if left unmanaged, diabetic retinopathy can cause irreversible vision loss. Individuals with diabetes are also at a higher risk of glaucoma because the intraocular fluid within the eye cannot drain correctly, causing a buildup of pressure. Additionally, you’re at a higher risk of developing cataracts when you have poorly controlled blood sugar levels.

    Although prevention is always ideal, if you do develop vision complications from diabetes, Dr. Mark Hornfeld can help. Dr. Hornfeld offers state-of-the-art cataract surgery and management services for glaucoma and diabetic retinopathy. Call our NYC ophthalmology practice today at (646) 502-4142 to schedule your visit .

  • Dr. Mark Hornfeld Explains How the OCT Machine Works

    An Optical Coherence Tomography (OCT) machine is helpful for diagnostic purposes. Ophthalmologists can view a cross-section image of the optic nerve and the macula, which is the center of the retina. This provides valuable information for diagnosing various eye diseases and for monitoring the progression of treatment of an eye condition.

    Watch this video to hear Dr. Mark Hornfeld explain how he uses his OCT machine at his NYC ophthalmology practice. You’ll hear him explain the benefits of this cutting-edge technology. For example, patient safety is preserved because no radiation is needed. Plus, the images are available right away.

    Safeguard the health of your eyes by scheduling a visit to Dr. Mark Hornfeld’s NYC office. Call our ophthalmology practice at (646) 502-4142 to speak with our friendly receptionist.

  • Common Eye Health Emergencies

    Scheduling exams with an ophthalmologist at least every six months allows for the early detection of vision problems, such as glaucoma and cataracts. However, certain circumstances call for an emergency visit to the ophthalmologist’s office . If you experience any abrupt changes in your vision, for example, it could signal a serious eye health problem. The following issues constitute eye health emergencies:

    Common Eye Health Emergencies

    Eye Injury

    If you suffer from persistent or significant eye pain, redness of the eye, and decreased vision, you could have an eye injury. Sometimes, eye injuries are easily detected. For example, you could suffer trauma to the facial area if you’re involved in a vehicular accident. In other cases, they are not quite so obvious, such as when small particles of abrasive material enter your eye and scratch the cornea. If you experience an eye injury, avoid rubbing the eye. Instead, have someone take you to the ophthalmologist’s office right away.

    Vision Loss

    Sudden vision loss is a possible complication of an eye injury; however, it may also indicate other eye health problems. One of the possible conditions it may indicate is retinal detachment, which occurs when the tissue located at the back of the eye becomes separated from the blood vessels. These blood vessels are necessary to provide the retina with nutrients and oxygen. Another symptom of retinal detachment is flashes of light in your vision . If there is a possibility you’re experiencing retinal detachment, time is of the essence. The sooner an ophthalmologist can treat you, the better your chances are of recovering your vision.

    Eye Inflammation

    Falling asleep while wearing contact lenses is a common problem for many. Unfortunately, it can sometimes lead to a corneal ulcer, which is an open sore on the cornea often caused by an infection or severely dry eyes. If you wake up with painful, red eyes that are sensitive to the light, see an ophthalmologist to reduce your risk of corneal scarring.

    If you experience abrupt changes in your vision or other significant eye health concerns, we encourage you to call the office of Dr. Mark Hornfeld , ophthalmologist. Dr. Hornfeld’s ophthalmology practice in NYC offers a range of procedures to correct vision problems using cutting-edge medical technology. If you have any questions, give us a call at (646) 502-4142.

  • What Is 20/20 Vision?

    Spectacles on an eye chart

    Ophthalmologists define 20/20 vision as the ability to see objects clearly from 20 feet away. This measurement refers to the sharpness or clarity of your vision, which is called normal visual acuity. However, it’s important to note that there are other aspects to your vision that are not factored into this particular measurement. For example, having 20/20 vision does not necessarily equal having great eye coordination, depth perception, peripheral vision, color vision, or focus. These factors can also affect how well you see.

    When you schedule an exam with an ophthalmologist, the doctor will consider all of these factors when evaluating your vision. You might choose to correct your vision with contact lenses or glasses. Or, you could ask your ophthalmologist about vision correction surgeries, such as LASIK surgery.

    If you wish to schedule a consultation for LASIK surgery or other eye care procedures, please call the office of Dr. Mark Hornfeld at (646) 502-4142. Dr. Hornfeld’s NYC ophthalmology practice offers a wide range of services, including cataract surgery.

  • A Look at the Link between Nutrition and Cataracts

    Cataracts, which are quite prevalent, are a leading cause of vision loss. They occur due to damage to the proteins found in the lens of the eye. Certain factors can increase your risk of developing cataracts, such as family history, age, and sunlight exposure. However, researchers have discovered that nutrition also plays a critical role in the prevention of cataracts . At your next ophthalmologist appointment, you can talk to the doctor about including the following nutrients in your diet to help prevent cataracts.

    A Look at the Link between Nutrition and Cataracts


    Lutein and zeaxanthin are carotenoids that your eyes need for healthy vision. Studies have shown that including plenty of these carotenoids in your diet may offer some protection against cataracts. In fact, according to the American Optometric Association , the Nurses’ Health Study demonstrated a link between decreased cataract development and an intake of six milligrams of these nutrients daily. You can talk to your ophthalmologist about taking lutein and zeaxanthin in a supplement, or you might prefer to include more food sources of these carotenoids in your diet. Some great food sources of lutein and zeaxanthin are kale, collard greens, spinach, turnip greens, and broccoli.


    In addition to getting more lutein and zeaxanthin in your diet, you might consider including more sources of antioxidants, such as vitamins C and E. Research has demonstrated an association between a delayed progression of cataract development and the consumption of these nutrients. They may also help prevent cataracts from forming in the first place. You could take a vitamin pill or consume foods that contain these antioxidants, such as papaya, cantaloupe, and kiwi for vitamin C, and almonds, peanuts, and sunflower seeds for vitamin E.

    Although following a healthy diet will help reduce your risk of cataracts, they can occur due to factors beyond your control. Dr. Mark Hornfeld offers advanced treatment for cataracts, including intraocular lens implants (IOLs) to restore your vision. Call our NYC ophthalmology practice at (646) 502-4142 to schedule an appointment today.