Vitreomacular Traction Syndrome

 

vitreous gel
Clear vitreous gel fills the eye (click on image to enlarge)
normal macular OCT
The macula is the center of the retina (in box). The bottom image is an optical coherence tomogram of the macula. (Click to enlarge)

What is the vitreomacular traction syndrome?

The vitreomacular traction syndrome is a condition in which the vitreous gel, which fills the inside of the eye, pulls on the macula. The macula is the center of the retina and gives sharp central vision for reading and seeing fine details. The retina is a thin layer of tissue in the back of the eye that lines the inside wall like the film inside the back of a camera.  The retina “takes a picture” of objects you look at and sends it to the brain. When the macula is damaged, the central vision worsens.

What causes the vitreomacular traction syndrome?

The vitreomacular traction is caused when the clear gel that fills the eye (vitreous) pulls on the macula.  At birth the vitreous is a thick and perfectly clear gel.  With age or trauma the vitreous gel begins to condense and pull away from the retina.  If the attachment of the vitreous to the macula is unusually strong, the vitreous may pull the macula away from its normal position, distorting this normally smooth tissue.

normal OCT
Normal macula as seen on optical coherence tomography (click to enlarge)
VMT
Vitreomacular traction as seen on optical coherence tomography (click to enlarge)

What are the symptoms of the vitreomacular traction syndrome?

Blurring of vision is mild at first, noted especially while trying to read fine print.  It slowly worsens, often with distortion (straight lines look crooked).  Sometimes there is a vague blind spot in the center of vision. The visual symptoms may be detected and monitored with the Amsler grid test.

What treatment is available?

If the symptoms are mild, no treatment is needed.  Medicine injection (Jetrea®) or vitrectomy surgery may help if there is significant loss of vision.  In most cases the vision improves with injection or a surgery that releases the abnormal pulling of the vitreous on the macula.  A gas bubble may be placed in the eye to smooth out the macula.  Strict facedown positioning may be recommended for one week following surgery.  Special cushions and massage tables are available to help maintain the proper head position.  The surgery is usually successful in returning vision, though the vision may not return completely to normal.

The image below shows the separation of vitreous fibers from the macula after Jetrea injection:

Jetrea VMT
Vitreomacular traction relieved by Jetrea (click to enlarge)

Below is a video that reviews the anatomy of the eye, information on vitreomacular traction, and an example of vitrectomy surgery:
https://youtu.be/r-5Az8_DU3U

Below is the case of a 70-year-old woman who had mild VMT. She was observed over several years and the traction released without surgery.

By Scott E. Pautler, MD

For a telemedicine consultation with Dr Pautler, please send email request to spautler@rvaf.com. We accept Medicare and most insurances in Florida. Please include contact information (including phone number) in the email. We are unable to provide consultation for those living outside the state of Florida with the exception of limited one-time consultations with residents of the following states: Alabama, Arkansas, Connecticut, Georgia, Minnesota, and Washington.

Copyright  © 2013-2022 Designs Unlimited of Florida.  All Rights Reserved.

How to find a good retina doctor?

Why is it necessary to find a good retinal doctor?

Finding a good retinal doctor is important to receive the best level of care. Your doctor should be up-to-date on the latest treatments and be able to choose from among the many choices of treatment to determine which is the best for you as an individual. Some doctors may not keep up with new treatment options and, therefore, may not offer these choices to you as a patient. Moreover, some treatments work better for some patients, but do not work well for others. You must rely on your retinal specialist to offer the best treatment for you. To do so, your doctor must get to know your eyes and you as a person in order to choose what is best for you. The retinal specialist must then review the options and explain why he/she has chosen your treatment plan. All treatments have benefits, risks, and limitations. All of this information must be explained to you. It is helpful if the doctor gives you written information to take home to review after the visit.

How do you go about finding a good retina doctor?

This task is not easy or as obvious as it may seem. At a minimum, your retina doctor should be a medical doctor (MD or DO) and completed a residency in ophthalmology and should be board-certified by the American Board of Ophthalmology.  You can find out online if your doctor is certified. Board certification is essential, but it is only the first step in finding your retina doctor.

Be aware that some ophthalmologists call themselves retina specialists, but they have not completed a retina fellowship program. A retina fellowship is a one or two-year program of highly specialized training, which is undertaken after a general ophthalmology residency program. You may ask your doctor if he/she completed a fellowship in retinal disease and for how long (one or two years). Some information is available to you at the web site of the American Society of Retinal Specialists. You may prefer a doctor who has been trained at a highly reputable university. One source of information is Castle Connolly.

A number of additional factors may be important in the decision to choose the best retina doctor for you:

Does your doctor do research? This issue has a good side and a possible bad side. In general, research may help a doctor to stay up-to-date on diagnosis and treatment. On the other hand, intensive research may draw the doctor’s attention away from information that does not pertain to his/her research interest. In this scenario, the doctor may become an expert in a small area of research and fall behind in the general knowledge of patient care that is important to your care. Simply put, you may prefer a doctor whose primary interest is patient care, not scientific research. Having said that, there are superb retina doctors who excel at both research and patient care. When interviewing a retinal specialist, try to gain a sense as to whether the doctor is more interested in you and your eye problem or his/her research.

Who referred you to the retinal specialist? Although this may not be an important issue, it is something to consider. In years past, doctors referred their patients to other doctors primarily on the basis of their knowledge about who provided the best care. There was no incentive to refer to anyone but the best for their patients. Due in large part to considerable financial duress imposed by government regulation and the insurance industry, general eye doctors have found the need to reap financial gains by hiring retina doctors to work for them. In this setting, the referring doctor may choose a retina doctor who works in the same clinic (or a separate building owned by the same clinic) because he/she makes money from doing so. The clinic retinal doctor may well not be the best doctor available in the area for your care. When in doubt, get a second opinion outside the clinic.

Are you comfortable with your retina doctor? This is a simple, but exceedingly important question to ask yourself. If you do not feel comfortable with your doctor, you may not follow through with instructions properly. You may not ask questions and gain an understanding of your problem. Never hesitate to seek a second opinion. A good doctor is not threatened by second opinions. In fact, good doctors often offer second opinions to their patients who appear uncertain or distressed.

By Scott E. Pautler, MD

For a telemedicine consultation with Dr Pautler, please send email request to spautler@rvaf.com. We accept Medicare and most insurances in Florida. Please include contact information (including phone number) in the email. We are unable to provide consultation for those living outside the state of Florida with the exception of limited one-time consultations with residents of the following states: Alabama, Arkansas, Connecticut, Georgia, Minnesota, and Washington.

Diabetic Retinopathy

Diabetes mellitus is a group of conditions characterized by abnormally high blood sugar levels.  Short-term side effects include increased thirst, frequent urination, and weight changes.  Long-term complications include numbness of the hands and feet, loss of vision, kidney failure, as well as hardening of the arteries leading to amputation, heart attack, stroke, and premature death.  Diabetes affects about one million Floridians and 16 million Americans.  It is the leading cause of blindness in America among adults.  Several studies have proven that strict control of blood sugar levels dramatically decreases the risk of blindness and other complications of diabetes.  The National Eye Institute proved that laser treatment may save vision if diabetic eye damage is detected early.  The American Diabetes Association recommends annual eye examinations for all adults with diabetes to prevent blindness.

What is the retina?

The retina is a thin layer of delicate nerve tissue, which lines the inside wall of the eye like the film in a camera.  In the eye, light is focused onto the retina, which “takes the picture” and sends the image to the brain.  The retina has two main areas.  The macula is the central area that gives you sharp, central vision and color vision.  The peripheral retina is the part of the retina that gives you side vision and night vision.

What is diabetic retinopathy?

Diabetic retinopathy is a condition that occurs after many years of high blood sugar.  It consists of damage to tiny blood vessels within the retina resulting in abnormal leakage of fluid and blood inside the eye.  If not detected or treated, diabetic retinopathy may cause bleeding, scar tissue formation, retinal detachment, and blindness.

Stages of diabetic retinopathy:

Non-proliferative diabetic retinopathy: The first stage of retinal damage consisting of a weakening or blockage of tiny blood vessels, which does not require treatment with laser unless macular edema develops.

Diabetic macular edema: Swelling of the central retina (the macula) due to abnormal leakage of fluid from small blood vessels weakened by diabetes.  Blurring of central vision may advance to legal blindness.

Proliferative diabetic retinopathy: The second stage of diabetic retinopathy in which abnormal, weak blood vessels begin to grow from the retina into the clear gel (vitreous) which fills the inside of the eye.  If not treated, this serious stage often results in blindness from bleeding.  Symptoms include new “floaters” or sudden loss of vision.  Retinal detachment may occur from diabetic scar tissue, which pulls the retina off the eye wall.  Retinal detachment causes a dark shadow in the vision or total loss of vision.  Laser and vitrectomy surgery best control these problems if detected early.

How is diabetic retinopathy diagnosed?

Because no symptoms may be present until severe damage to the retina has occurred, it is essential that all adults with diabetes have a complete, dilated eye examination at least once a year.  The eye doctor can see into the eye with an ophthalmoscope to diagnose retinopathy.  If significant changes are found, photographs can be taken to record the changes. A fluorescein angiogram may be performed in the office by injecting a fluorescent dye into the vein of the arm while photographs are taken of the retina.  It supplies important information about the health of the retinal blood vessels.

How is diabetic retinopathy treated?

No treatment is needed if the vision is not threatened.  If blood vessel damage is significant, painless injections of medicine (Avastin) may be required to improve vision. Laser treatment performed in the office can often prevent severe visual loss.  Laser produces heat, which serves to cauterize the damaged retinal blood vessels.  Usually there is no pain, but if extensive laser is needed, an anesthetic injection may be given around the eye.  In severe cases of bleeding and scar tissue formation, vitrectomy surgery is performed as a one-day surgery in the hospital.  With laser and vitrectomy surgery, most people can retain useful vision. However, some people lose vision despite all efforts with treatment.

What can I do to prevent diabetic damage?

Strict control of the blood sugar has been proven to reduce the rate of progression of diabetic retinopathy by about 70%.  In addition, loss of vision can be minimized by optimal control of other health problems such as physical inactivity, obesity, hypertension (<130/<80), cholesterol (<200) and triglycerides (<150), heart failure, and kidney failure.  Tobacco use is strongly discouraged.  Daily aspirin use is recommended.

PREVENT BLINDNESS THROUGH GOOD MANAGEMENT OF DIABETES AND REGULAR DILATED EYE EXAMINATIONS.

By Scott E. Pautler, MD

For a telemedicine consultation with Dr Pautler, please send email request to spautler@rvaf.com. We accept Medicare and most insurances in Florida. Please include contact information (including phone number) in the email. We are unable to provide consultation for those living outside the state of Florida with the exception of limited one-time consultations with residents of the following states: Alabama, Arkansas, Connecticut, Georgia, Minnesota, and Washington.

Copyright  © 2013 Designs Unlimited of Florida.  All Rights Reserved.