Why Contact Lenses May Not be the Best Solution for Sports

One of the leading selling points of contact lenses is the fact that, unlike eyeglasses, they can be worn while playing sports. Contact lenses also offer a wider field of vision than most pairs of glasses, which is helpful when it comes to throwing, catching, kicking, and dodging tackles. When compared to eyeglasses, contact lenses offer a clear competitive advantage, but is it the best solution?

If you are trying to decide between glasses, contacts, or corrective laser surgery for yourself, there are several factors worth considering. Let’s look at the strengths and weaknesses of wearing contacts while playing sports.

 Advantages of Contact lenses for Sports

  • The biggest advantage of contact lenses versus eyeglasses is the improved peripheral vision offered by contacts. For most eyeglass wearers, there is a drop off in clarity in the peripheral field of vision.
  • Wearing glasses during a contact sport can also increase the chances of them breaking, bending, and can seriously threaten the safety of your eyes.
  • You do not have to worry about smudges on your glasses, dirt, or any other substance getting on your glasses!
  • Some, though not all, contact lenses offer protection from ultraviolet radiation, thereby preventing further damage to your eyes.
  • Contact lenses are also able to facilitate sports-related safety equipment much more comfortably than eyeglasses can. After all it is pretty difficult to wear goggles (in hockey or marksmanship, for example) over bulky eyeglasses. Contacts conform quite closely to the eye’s natural form factor, making it easy to wear all types of protective gear.

Disadvantages of Contact Lenses for Sports

Wearing contact lenses for sports does come with its own disadvantages. Ask anyone who wears contacts, sometimes those tiny clear lenses fall out! When you’re playing a full-contact sport, the last thing you want to be concerned about is your lenses. And if you wear lenses to repair your vision for astigmatism, having a lens forcibly ejected from your eye can not only halt your game, but can prove costly when it comes time for replacement. And nobody has time for that!

If your only contact lens option is rigid gas permeable (RGP) lenses then you know that merely wearing them can be uncomfortable. That discomfort can result in outright pain on the playing field.

The iLASIK Alternative

If you’re someone who wears contact lenses to correct nearsightedness, farsightedness, or astigmatism and you are actively involved in sports, you may be the perfect candidate for iLASIK laser eye surgery. However, not everyone is a candidate for LASIK, so you will need to consult with an ophthalmologist who specializes in laser surgery to see if it’s recommended for your vision.

iLasik might possibly be the best vision correction solution, you will be able to hit the playing field totally unencumbered in a way that neither contact lenses nor eyeglasses can provide and that’s an advantage you simply cannot beat. Correct  the most common vision problems and toss out those corrective lenses.

What to Look for in Protective Eyewear?

The two eyes with which you were born are the only set you will ever have. That makes their safety and protection critically important. Your eyesight is precious, and its protection sometimes calls for wearing specialized eyewear. Prevent Blindness America states that nearly one million people in America injure their eyes each year (with many more cases going unreported). The sad truth is that many such injuries could be avoided with the use of proper protective eyewear.

In the spirit of avoiding eye injuries and preserving your vision throughout your lifetime, let’s go over what you should look for in protective eyewear.

ANSI Standards for Protective Eyewear

The first consideration when choosing protective eyewear (also called “safety eyewear”) in the United States involves standards put forth by the Occupational Safety and Health Administration (OSHA), which implements ANSI standards for protective eyewear.

Types of Protective Eyewear:

  • Lenses and frames
  • Full-face respirators
  • Welding helmets
  • Face shields
  • Impact guards

Other types of protective gear may fall under ANSI guidelines, but various industries are covered, and ANSI compliance is either a “pass” or “fail” for a particular type of eyewear. It is important to note that, regardless of whether or not an article of eyewear meets with OSHA standards, it does not endorse any particular device. Devices fall into either “non-impact” or “impact” (and corresponding “high-impact”) standards, depending upon the intended usage.

Assessing Safety Ratings

Not all eyewear marketed as “safety-rated” actually protects your vision.

What To Look for Before Purchasing Eyewear Protection:

  • “Plus” Mark – A “+” on a device’s packaging denotes approval of the velocity test and withstands high impact situations.
  • “V and S” Marks – Some lenses are darkened to protect the eyes from immense brightness. A “V” label denotes that a particular lens is photchoromic (lenses which darken, automatically, when exposed to the sun’s rays), while an “S” indicates that a special tint is provided for a specific application.
  • The ANSI “Z87” mark should be present for all non-prescription safety eyewear with non-replaceable lenses.

Of course, standards vary across industries, and the best way to ensure you purchase the correct safety/protective lenses for your line of work is to consult with the legal standards of that industry. Standards will vary across various trades, including carpenters, machinists, and plumbers, as well as specialized and skilled professions.

What Is It Important to Use the Right Eye Protection?

Choosing incorrect or unsatisfactory protective eyewear can lead to eye injury, which can, in turn, lead you to the emergency room. Some problems stemming from eye injury can lead to visits to the ophthalmologist – and surgical procedures, as a result.
When it comes to your eyes, like any part of the human body, as the old adage states, an ounce of prevention goes a long way. Wearing the right protective lenses is the best way to stave off permanent, irreversible damage to the eyes. Knowing what to look for in protective eyewear is essential for tradespeople in a variety of professions, and it’s something you can’t afford to overlook.

Make the Right Choice with Advanced Eye Medical Group

Eye safety and protection should never be neglected. Whether you are in need of non-prescription safety eyewear or prescription safety gear, a one-time investment will pay off in the long-term and reduce your risk of causing injury to your vision. To learn more about the importance of selecting the right choice of protective eyewear, please contact our experienced and certified eye doctors.

What Can iLASIK Do for Athletes?

For many athletes, strong vision is not only important, it’s imperative. Whether they are keeping their eyes on the ball or the prize, athletes depend on having great vision to perform at their very best. It’s often necessary for them to react quickly in specific situations, using skills such as peripheral vision, visual tracking, and depth perception in order to be triumphant at season’s end.

Those with poor eyesight may quickly discover that the value of clear vision is undoubtedly clear. However, when it comes to sports, exercise and other physical activities, improving vision with glasses or contacts isn’t always convenient, practical, or safe. Utilizing the latest technology, iLASIK offers athletes and nonathletes alike, an excellent vision correction option that is entirely in a league of its own.

What Does the Procedure Involve?

iLASIK begins the journey to improved eyesight with, of all elements, a map. An advanced Wavescan system first creates a three dimensional map that displays the eye’s imperfections and unique characteristics.

After the custom map of the eye has been developed, an Intralase laser creates a corneal flap without the use of a blade. Lastly, an excimer laser system is used to correct visual imperfections including farsightedness, nearsightedness, and astigmatism.

The Benefits of iLASIK for Athletes

Undoubtedly, the main benefit iLASIK is its ability to quickly, safely, and effectively improve eyesight. But strictly speaking, how can athletes in particular benefit from this procedure?

No Need for Glasses or Contacts

Well, in addition to better vision clarity, athletes can experience reduced dependency on corrective lenses that can possibly impact their performance. For example, eyeglasses
should not be worn during high-contact sports and other vigorous physical activities. Not only can glasses get in the way, but more importantly, they can break and potentially cause serious eye injuries.

Accident-Free During Game Time

In comparison, contact lenses pose less of an issue for athletes. However, there is the risk of a lens falling out during sports activities, or causing eye irritation due to the build-up of dust or debris. If the clock is counting down or the finish line is in sight, avoiding these obstacles can make all the difference.

Visual Freedom

iLASIK offers athletes the advantages of increased visual freedom with more clarity. This can help them keep their focus on the sport, with fewer limitations to doing what they love and giving it their all.

Setting Your Sights on iLASIK

Clearer vision can be crucial to kicking the winning field goal, or simply enjoying the activities of day-to-day life. If you are considering improving your eyesight with iLASIK, contact Advanced Eye Medical for a consultation. We will carefully review your vision needs and candidacy for this procedure, in order to ensure the optimal results for your eyesight.

Cataract Surgery and the Older Patient

As we age, our vision changes. Small print is harder to read, minor vision issues become more pronounced and sometimes, we develop cataracts, or a clouding of the lenses resulting in blurred vision. Cataract surgery can help to restore your vision and reduce the visual difficulties that come with the lens of your eyes being clouded. At the Advanced Eye Center, we believe that patients suffering with cataracts should be informed of their treatment options, how to prepare for a necessary surgery and what to expect during this process.

How to Prepare

Dr. Ghosheh will meet with you one to two weeks prior to your cataract surgery to prep you for the procedure. The following are common preparation methods to expect:

  • Testing: A quick ultrasound will be performed to get the shape and size of your eye, ensuring that the right artificial lens is placed.
  • Eye drops: You will start using eye drops about 48 hours before the procedure to prevent infection.
  • Recovery information: Taking proper recovery steps is crucial for a smooth healing process. Dr. Ghosheh will prepare a thorough recovery plan for you.
  • Stopping medications: Medications that increase bleeding risk may have to be stopped a week or two before the procedure.
  • Fasting: In most cases, you must refrain from eating or drinking 12 hours before the procedure.

What to Expect on Surgery Day

You are typically awake, but sedated, for this procedure. Eye drops to dilate the pupil and an anesthetic are given to numb you. Then, Dr. Ghosheh will remove the cloudy lens of your eye and replace it with an artificial one, also known as an intraocular lens.

Possible Risks

Cataract surgery is a safe and effective procedure, and it is uncommon for people to experience complications. However, knowing potential risks is important. The following are potential complications after this surgery:

  • Inflammation
  • Bleeding
  • Infection

Recovering from Cataract Surgery

It can take up to 30 days to see the full visual results from your surgery. However, the main recovery time is during the first week and you will be restricted from things like driving and lifting. You will be given anti-inflammatory and antibiotic eye drops to use to promote healing and prevent infection.

Making Sure You’re Informed, Every Step of the Way

Dr. Ghosheh and his staff will ensure that you are thoroughly prepped and informed about your cataract surgery. Contact us and schedule your consultation if you are considering this procedure. We believe in delivering the best possible results in the safest manner for your vision and overall well-being.

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!

Answers to the Most Common Lasik Questions

Thinking about Lasik eye surgery? This surgical procedure is an investment in improving the quality of your vision and ultimately, your life. Knowing what to expect in terms of how it works and how long the results are going to last will ensure that you are making the best decision for your vision. Here are the answers to a few of the most frequently asked Lasik questions.

Exploring how Lasik Works

Your cornea is a structure of your eye that acts as a window. Light passes through it and its unique shape ensures that incoming light hits the retina at the right angle. This allows for clear images that your brain translates so that what you see is crisp and clear. When the light does not hit the retina correctly, what you see is unclear and blurry. This surgery reshapes corneal tissue to change the eye’s focal point. Light is then able to focus directly onto the retina, improving the blurriness and other symptoms you experience.

Lasik Results Maintenance

While the corneal reshaping is considered permanent, this surgery does not prevent vision changes that can occur as a result of aging. Because of this, you should have an annual eye examination so that your doctor can identify and treat vision conditions that may come with age, such as glaucoma, cataracts and macular degeneration. Getting these controlled quickly can help you to maintain your enhanced vision for a longer period of time.

If at any point after your surgery you notice vision changes, you should see a qualified eye doctor. This ensures optimal eye health, which is critical for maintaining your Lasik surgery results

How Long Lasik Lasts

The results of Lasik are individualized, meaning that each person’s results are different. The corneal reshaping that occurs during the surgery is considered permanent. Most patients have years of improved vision that enhance their quality of life. There is no exact number of years due to individualized results, but it is possible that the results will last for life. Just make sure to keep all your eye doctor’s appointments so that your progress can be monitored.

For Continuing Eyecare

At Advanced Eye Medical, our expert eye doctors are interested in monitoring the results of every Lasik procedure they perform, even years down the road. For continuing, personalized eye care, call (866) 997-2020 and schedule your consultation today.

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.

Is iLasik Better Than Traditional Lasik?

Lasik surgery works to correct your vision so that you can better see the world around you. There are two primary Lasik types that you can talk to your eye doctor about: iLasik and traditional Lasik. Both procedures have differences that can impact your overall results, so knowing the differences between the two is important when choosing the best option for you.

What is Traditional Lasik?

Traditional Lasik dates back to the late 1980s, and it uses refraction to take standard measurements of your eye. The measurements only work to correct general farsightedness, nearsightedness and astigmatism. However, possible side effects can include haloing and night glare.


Traditional Lasik Involves Two Main Techniques:

  • Blade-created Flap: Traditionally, surgeons use a microkeratome to create a Lasik flap. The flap is cut into the cornea using an oscillating blade. This gets the eye prepared for using the excimer laser to reshape the cornea.
  • Laser Vision Correction (Bladeless): This technique involves an exam with your pupils fully dilated in order to get your measurements for the excimer laser treatment. The laser works to reshape the cornea surface. The flap is put back into place after the laser cornea reshaping.

What is iLasik?

This type of Lasik surgery uses a two-laser approach with Advanced CustomVue measurements to correct your vision. The measurements are made by creating what is similar to a fingerprint of your eye. Compared to traditional measurements, this method provides 25 times more detail. Every person has Lasik surgery customized to them using WaveScan Mapping. Compared to traditional Lasik, the enhanced measurements of iLasik potentially produce better vision after the surgery. There is also a reduced risk of haloing and night glare compared to traditional Lasik.

iLasik Involves Two Main Techniques:

  • Laser-created flap: To create the corneal flap, the surgeon uses the IntraLase FS laser. This means that no blade is used, unlike with traditional Lasik, and a computer guides the laser to reduce the risk of some of the potential Lasik complications. This allows for better visual outcomes by creating a better working surface under the flap.
  • WaveFront-Guided laser: Compared to other Lasik techniques, this technique allows for the most accurate and precise laser vision correction that eye doctors can provide today. It is an Advanced CustomVue procedure that uses WaveScan measurements. These measurements go into the wavefront computer-guided excimer laser.

This technique allows doctors to customize the vision correction treatment for every patient. Clinical trials show that this Lasik option provides the most outstanding visual outcomes and the highest level of safety with this type of procedure.

Make the Best Choice for you

Understanding both surgery types, iLasik and traditional Lasik eye surgery is the first step toward making an informed decision for your treatment protocol. Our eye care experts specialize in iLasik to yield the best results, with lowered risks. Contact us today and set up your free consultation. Start seeing the world clearly with your improved vision.

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.