The Anatomy of the Eye and Lasik

Lasik eye surgery has become a great option for those who want to improve their vision. Here is a description of how your vision is corrected and what eye conditions benefit most from this impressive procedure.

Lasik and the Anatomy of Your Eye

Most Lasik procedures involve working on the cornea of the eye. Positioned in front of the iris and pupil, this small structure acts like a window. Light passes through the corneal structure and the shape of the cornea determines how the light is bent. A misshapen cornea will bend light abnormally so that it is not properly focused on the retina of your eye. With Lasik surgery, the misshapen cornea is fixed so that light is properly focused on your retina, ensuring crisp and clear vision.

Visual Conditions that Lasik Corrects

There are four primary visual issues that you might consider having Lasik surgery for. Each issue entails a different variation of Lasik.

  • Farsightedness: This condition is characterized by difficulty seeing up-close objects. When surgeons are performing Lasik for this condition, they are looking to add more of a curve to your cornea. They target the central corneal tissue with the laser to enhance the curve’s profile. They also remove corneal tissue to ensure proper light focus on the retina.
  • Nearsightedness: This condition is characterized by difficulty seeing far away objects. To use Lasik for this condition, surgeons need to remove inner layer tissue from the cornea. A laser is used to remove an exact amount of tissue to flatten an excessive curvature to reshape the cornea.
  • Presbyopia: This is common in middle age and affects your ability to focus on nearby objects. While Lasik is not commonly used for this, the procedure is exactly like the one used for nearsightedness.
  • Astigmatism: This condition is characterized by your cornea looking more like a football than a smooth tennis ball. This prevents light from properly focusing on the retina, resulting in blurry vision. Surgeons flatten the corneal curve, making it more spherical for proper light refraction.

For Long-lasting Results

Now that you understand the basic structure of the eye and how Lasik works to correct certain irregularities, the next step is to consult with a qualified, Board Certified Opthamologist to determine your best course of treatment.

Everyone’s eyes are different, so at Advance Eye Center, Dr. Gosheh customizes each treatment protocol for the best possible outcome. Contact our knowledgeable staff oday and set up your free consultation. You’ll see the world in a brand new way!

What Diabetes Means for Your Eyes

Nearly 30 million people in the US have diabetes, according to the CDC (Center for Disease Control). It is widely known that diabetes affects the blood vessels and nerves of the body. However, what people often are not aware of is the damage it can cause to the eyes.

For the eyes, the damage to blood vessels and nerves can mean serious problems –diabetes is the leading cause of irreversible blindness in Americans under age 65. While blindness is clearly the largest concern, diabetes can also damage the eyes in a number of other ways.

Diabetic Retinopathy

Diabetes can cause the blood vessels in the retina of the eye to swell or leak, which leads to a serious condition called diabetic retinopathy. This is the most common diabetic eye problem. The swelling of these vessels causes the retina to become deformed, resulting in blurred vision. The change in vision can be temporary or permanent, and can range from severe to minor eyesight impairment. The effects depend upon the type and location of damage to the retina.

The National Eye Institute divides diabetic retinopathy into 4 distinct stages:

  1. Mild Nonproliferative Retinopathy: This is the earliest stage in which light swelling occurs in the smallest blood vessels of the eye.
  2. Moderate Nonproliferative Retinopathy: If progressed to this stage, some of the swollen blood vessels will be blocked, denying nutrients to the retina.
  3. Severe Nonproliferative Retinopathy: This is the most serious nonproliferative stage in which severe swelling denies blood supply to the retina, greatly affecting vision and causing the body to grow new blood vessels to try to compensate
  4. Proliferative Retinopathy: In this most advanced stage of retinopathy, the eye has grown new blood vessels in an attempt to restore blood flow to the retina. However, the new blood vessels are weak and leak easily, causing leakage of blood that can lead to severe vision damage or blindness.

Macular Edema

Macular edema can occur in conjunction with diabetic retinopathy, often in the more progressive stages. In this condition, fluid can leak from the blood vessels into the macula, a small part at the center of the retina that is responsible for detailed vision. The excess fluid there causes edema, or swelling of the macula, and leads to vision impairment.

Other Conditions

Diabetics are twice as likely to develop glaucoma because of their disease. Glaucoma is the damage of nerves in the eye that has lead to swelling within the eye. The result is a gradual loss of vision. Diabetics are also more likely to develop cataracts, or the clouding of the lense of the eye. Both of these conditions are serious and can result in blindness if not detected and treated properly.

Symptoms of Diabetic Eye Conditions

Diabetic eye disease is a serious problem with serious risks. Many of the conditions often have no symptoms until damage has already been done. Common symptoms in diabetics include:

  • Blurred or double vision
  • Seeing spots, streaks or flashing lights
  • Blind spots.

Diabetics should be mindful of any change in vision or eyesight and report these changes to their doctor right away.

Detection and Treatment Options

Receiving a medical exam once a year is the best way to prevent, diagnose, and treat a diabetic eye condition.

An eye care professional will give drops to dilate the pupils, allowing for a thorough exam of the retina to check for Diabetic Retinopathy. A large light called a slit lamp will be used on the eyes to help check for cataracts.

Tonometry will be used to measure the pressure inside the eye and screen for glaucoma. Other tests will also be conducted to check visual acuity and the visual field. Diabetic Retinopathy is most often treated with highly-effective laser surgery. Other diabetic eye conditions may also be treated with surgery, or more commonly, with oral medications and eye drops.

Prevention is the Best Medicine

Early detection is vital, and at Advanced Eye Medical, our experienced and knowledgeable ophthalmologists can provide comprehensive and convenient care for diabetic eye care concerns. Call (866) 997-2020 today to schedule your eye exam.

Why Is Wearing Sunglasses Important During Summer?

Wearing sunglasses is more than simply a fashion statement. In fact, protecting your eyes from potentially harmful ultraviolet radiation (UV) is important to the long-term health of your eyes. The life-giving sun, despite its myriad benefits to the world’s ecology, can prove harmful to the human eye, especially during summer. The rays of the sun can prove particularly damaging to our eyes, and overexposure to UV rays can lead to eye problems, including cataracts and macular degeneration. This means it’s important not only to wear sunglasses, but to also make sure the pair you choose rejects 99% of the sun’s inundating rays.

Let’s go over three reasons it is important to wear sunglasses during summer.

Reason #1: Sunglasses Can Help Prevent Common Eye Problems

In our youth, we tend to think of ourselves – and our eyes – as indestructible. Years of exposure to the sun’s UV rays can prove otherwise, though. As we age, our eyes age too, and leading eye problems for older adults, like macular degeneration, can be traced to long-term sun exposure, in many cases. Macular degeneration involves damage to the center of the retina (the part of the eye that processes visual information into brain signals), which makes it hard to see objects straight ahead.

Another common eye problem is cataracts, particularly among older adults. A cataract is a clouding of the lens of eye, as proteins in the eye clump together, clouding the lens and making it harder for the affected person to see. Researchers are uncertain of the precise causes of cataracts, but, according to Allaboutvision.com, exposure to ultraviolet radiation is suspected as a leading cause.

Serious eye diseases and disorders can require laser surgery later in life. While that can offer comfort and peace of mind, throwing on a pair of sunglasses is the best way to avoid needing eye surgery later in life.

Reason #2: Sunglasses Can Help Avoid Skin Cancer

Skin cancer is a serious problem affecting approximately one million people in the US each year,according to WebMD.

While many of us are aware of the need to wear sunscreen when venturing outside, most people do not apply sunscreen to their eyelids, for obvious reasons. This means that sunglasses could be your only line of defense against skin cancer developing on and around your eyelids.

Reason #3: Nighttime Driving Safety

Prolonged exposure to the sun during the day can lead to problems adjusting to low light settings at night. Spending three or more hours in bright sunlight can affect your eyes’ ability to adjust to darker light settings which can prove dangerous when driving at night after a day in the sun.

The same rationale that makes this an important reason to wear sunglasses during the summer speaks to the overall comfort afforded by protecting your eyes in broad daylight. If the sunlight is simply bright enough to cause you to squint or shield your eyes, then you really should put on a pair of sunglasses.

Learn More About Protecting Your Eyes from the Summer Sun

We know that not everyone is an expert when it comes to eye care and protection from the sun during summer. If you are searching for answers, we suggest that you call our offices to make an appointment at 1-888-439-6565.

Astigmatism: What Exactly is This Condition

Many people have heard the term but, unless you have this condition, it’s may be a mystery. Astigmatism is a common condition that affects the eyes. In fact, a majority of people have astigmatism to some degree. If the condition is minor and doesn’t cause symptoms, treatment is usually not necessary. When the astigmatism is more serious, however, treatment from an eye doctor can help. Here is a closer look at this very common eye condition.

Causes of Astigmatism

People with astigmatism usually have either farsightedness or nearsightedness. These conditions, along with astigmatism, are called refractive errors due to how they interfere with the eyes’ ability to refract, or bend, light as it enters the eye.

In most cases, this condition results from an irregularly shaped cornea. Under normal circumstances, the cornea is shaped like a tennis ball, meaning it is perfectly round. With astigmatism, the cornea takes on more of a football shape. The result is one section of the cornea has more of a curve than other sections. This interferes with light refraction in the eye. There are some cases where the lens in the eye is irregularly shaped, and not the cornea, leading to astigmatism.

A Closer Look at Your Cornea and Lens

Both eye components are responsible for ensuring your eye can focus images. Under normal circumstances, all light that enters your eye is refracted so that the retina has a sharply focused image. However, if the cornea or lens has an irregular shape, this causes rays of light to have an uneven focus.

The most common symptom is distorted or blurry vision. Other symptoms include headaches and eyestrain.

Astigmatism Types

There are three main types of this eye condition:

  • Myopic astigmatism: At least one meridian (section of your cornea) is nearsighted.
  • Mixed astigmatism: One meridian is farsighted and the other meridian is nearsighted.
  • Hyperopic astigmatism: At least one meridian is farsighted.

Astigmatism Treatment

Treating astigmatism means addressing the abnormal curve of the cornea to promote improved vision. Corrective lenses are the most common treatment because they work to counteract an uneven cornea curvature. Lasik can also work to reshape the eye’s surface to reduce the abnormal curvature.

Remember Your Annual Eye Exams

Seeing an eye doctor annually helps to diagnose astigmatism before it starts to cause symptoms. Since this condition typically starts during childhood, it is important for kids to have regular eye exams so that it can be diagnosed early.

Over 30 Years of Improving Vision

Dr. Gosheh and the Advanced Eye Medical team have been using Lasik to correct astigmatism and other eye conditions for over 30 years. If Lasik isn’t an option for your vision need, we also have a full service practice for all of your vision needs — including an in-house optometrist offering a wide selection of frames for all face types. Contact us by clicking here to schedule your eye exam and consultation to determine the best treatment to correct your astigmatism.

What is Low Vision?

Low vision is most common in adults age sixty and over, though, vision impairment can affect younger people as well and because it can affect people of all ages, vision loss can make day-to-day tasks difficult. The best way to keep up an active lifestyle while dealing with the effects of low vision is to learn what it is, what causes it, and how best to manage it.

If you or someone in your life has low vision, you may find it comforting to learn that this is a common condition. You might also take comfort in knowing that you are certainly not alone, since the National Eye Institute (NEI) reports that millions of Americans will experience visual impairment in their lifetime.

Signs of Low Vision

Low vision is a term that encompasses a variety of sight problems. According to Whatislowvision.org, the ailment is typically characterized by eye problems including:

  • Blurred vision
  • Tunnel vision
  • Blind spots
  • Legal blindness

Such problems can limit a person’s ability to complete daily tasks and enjoy their beloved hobbies. Past times, such as reading and  sewing, can be compromised dramatically by visual impairment. Important daily takes, like maintaining personal hygiene, getting dressed, and preparing food, can also become increasingly difficult for individuals experiencing low vision. More alarmingly, tasks like driving, operating machinery, and reading signs can become extremely difficult for people with vision problems. It requires the affected person to make lifestyle changes to accommodate their visual impairment, and that, in turn, requires consultation with an eye care professional.

Common Causes

A variety of factors can contribute to the loss of sight. Genetics, aging, birth defects, and eye traumas are well documented causes. Age-related Macular Degeneration (ARMD) is the most common cause of vision loss, accounting for up to half of all reported cases of low vision in the USA (according to data from The Vision Council). Glaucoma, cataracts, and diabetic retinopathy are also frequent causes of impairment, especially in older adults.

Although, it is not always possible to restore vision after it has been lost, it is possible to treat the underlying causes. If you are experiencing any signs of visual impairment, or have an eye disease or disorder that can lead to loss of vision, don’t hesitate in contacting your vision specialist, it might lead to saving your vision.

Living with Low Vision

Although most people with visual impairment will need to use therapeutic devices to complete certain tasks, it is also important to work with a qualified ophthalmologist who specializes in treating patients experiencing low vision. Only an ophthalmologist can diagnose and treat the eye diseases and disorders which cause visual impairment for you or your loved one.

In Orange County, the ophthalmologists at Advanced Eye Medical are qualified help you manage your visual impairment and, most importantly, treat its underlying cause. With the help of your ophthalmologist, you can address the underlying cause, treat it, and develop a plan for completing daily activities with highest level of comfort and convenience possible.

The Best Summer Food for Healthy Eyes

It certainly should not be a surprise, but consuming a nutritious diet serves as one of the biggest eye protection strategies for everyone. Ensuring healthy vision is not on everyone’s mind as summer edges near the end, so we are all likely to splurge at last-minute barbecues and beach parties.However, eating the best nutrients throughout summer may ensure that your vision remains as healthy as possible. As August serves as Children’s Eye Health and Safety Awareness Month, your Orange County Lasik surgeon recommends that you include your children with healthy eating habits early to keep their vision strong for life. Read on for the best summer food for healthy eyes.

Lutein and Zeaxanthin

Oranges, eggs and leafy greens are the major carriers of lutein and zeaxanthin. Together, they both act as antioxidants that help filter high-energy wavelengths of light that are known to exacerbate macular degeneration.

Beta-Carotene

Beta-carotene is a probiotic vitamin that our bodies convert into vitamin A to help boost the immune system and protect healthy cells. Carrots, pumpkin, spinach, cabbage, kale and sweet potatoes are the most popular sources of this antioxidant.

Flavonoids

Flavonoids are phytonutrients found in plants that provide significant cardiovascular health protection to fight against macular degeneration and cataracts. The sources of this nutrient are found in berries, tree fruits, nuts, peppers, tomatoes and eggplants.

Ascorbic Acid

Ascorbic acid, generally known as vitamin C, is one of the key ingredients to prevent formation of cataracts. Studies have shown that lack of ascorbic acid is connected to early development of cataracts and loss of visual acuity. Since vitamin C is sensitive to air, light and heat, people can get the most out of fruits and vegetables when eaten raw or lightly cooked.

Selenium

Selenium works closely with carotenoids and ascorbic acid in order to keep muscles in the eyes flexible and to defend against bacteria. Brazil nuts, tuna, mushrooms, lean pork and beef are among the favorites in this compound.

Omega-3 Fatty Acids

In the eye health industry, Omega-3 fatty acids play a dominant role as an anti-inflammatory agent that keeps blood pressure under control. These are the good fats everyone can include in a healthy diet that can prevent issues, such as blurred vision, loss of visual acuity, advanced macular degeneration. Food products such as fish oil supplements, mackerel, trout, herring, sardines and salmon produce the Omega-3s our vision needs.

Recent studies show that a diet rich in Omega-3s protects blood vessels from damage and supports eye health in elderly adults. As published in the journal Proceedings of the National Academy of Sciences, Harvard Medical School researchers reported that when people include oily fish or Omega-3 fish oil supplements in a regular diet, they will support and protect blood vessels in the retina. This is critical for an individual’s eyes as damage to these blood vessels can affect healthy eyesight.

Count on Orange County Lasik 

If you are looking for the best solutions to help preserve healthy, long-lasting vision, then schedule a consultation with the best Orange County lasik surgeon patients can trust. Contact Advanced Eye Medical Group and find out whether your diet is affecting your vision. Call us at (888) 439-6565 to schedule your consultation.