About DrVanDO

Da-Thuy Van, D.O. provides comprehensive eye care including LASIK for Houston and Galveston area patients, cataract surgery & lens implants, eyelid surgery, BOTOX® and gel fillers for wrinkles at The Eye Clinic of Texas. Dr. Van, a Board-Certified Ophthalmologist, received her Bachelor's Degree with Cum Laude Honors from the University of California-Santa Cruz and her Doctorate of Osteopathy from Ohio University College of Osteopathic Medicine, where she served as President of the Sigma Sigma Phi National Honors Society. Dr. Van completed her internship in Internal Medicine at Meridia South Pointe Hospital in Cleveland, Ohio and her Residency in ophthalmology at Doctor's Hospital, which is affiliated with Ohio State University in Columbus, Ohio. She served as Chief Resident of Doctor's Hospital from 2000-2001. Dr. Van is a member of the American Academy of Ophthalmology, the American Osteopathic Association, the American Osteopathic College of Ophthalmology and Otorhinolaryngology, the American Society of Cataract and Refractive Surgery and the Texas Medical Association. Besides general ophthalmology, Dr. Van also specializes in cataract and refractive surgery, glaucoma procedures, blepharoplasty, and other lid procedures and pediatric eye care. Dr. Van is fluent in Vietnamese.

About Angle Closure Glaucoma

Angle Closure Glaucoma is a type of glaucoma caused by a blockage or complete closure of the drainage structure of the eye called the trabecular meshwork. The trabecular meshwork is actually a fine filter, and if it is blocked or obstructed by any alteration in the size or shape of the surrounding structures, or by change in the size or shape of the tissue itself, it will cause the intraocular pressure (IOP) to elevate. In instances where the meshwork becomes blocked abruptly, it will cause a sudden rise in the intraocular pressure (IOP), resulting in Acute Angle Closure Glaucoma. Acute Angle Closure Glaucoma is characterized by this sudden rise in pressure which will cause pain, redness, light sensitivity, colored haloes around lights, nausea or vomiting, and blurred vision, and if left untreated permanent loss of vision.

Medications Can Cause Angle Closure Glaucoma

In patients who may already be at risk for Angle Closure Glaucoma because they have certain tissue and anatomical features inside their eyes, certain medications can significantly increase their risk. Two medications that are worth mentioning are the antidepressants Wellbutrin (Buproprion) and Topamax® (Topiramate). While both of these are often used to treat mild to moderate depression, they are also used to help patients stop smoking! Researchers reporting a study in Archives of Ophthalmology found that the risk of angle-closure glaucoma in patients younger than 50 years was twice as high in patients taking Wellbutrin and more than 5 times higher in patients taking Topamax®.

If you or someone you know is being treated for depression or has been prescribed Wellbutrin or Topamax® to help stop smoking, please make sure you tell your eye doctor and ask about your risk of Angle Closure Glaucoma, as well as become familiar with the symptoms above. If you have not had an eye exam with glaucoma testing and are taking these medications, please call The Eye Clinic of Texas, an affiliate of Houston Eye Associates, at 800-423-3937, visit The Eye Clinic of Texas, Google+  or facebook.com/ecot.lasik.

The Eye Clinic of Texas is an affiliate of Houston Eye Associates, the largest ophthalmology clinic in the nation. We are a leading eye care practice serving the greater Houston, Galveston, League City and Texas City with offices at 1100 Gulf Freeway, Suite 114, League City, Texas 77573, 7111 Medical Center Drive, Suite 110, Texas City, Texas 77590 and 2302 Avenue P, Galveston, Texas.

Cataracts are a rather frequent cause of night driving problems. In fact, patients may not be aware that the degree of night vision problems can be particularly disturbing even with a pretty mild cataract. Night driving tends to be difficult enough because the overall low light levels can cause you to misjudge distances and boundaries like the edge of the road or distance to a street or exit. Further, even mild cataracts can cause night glare off car headlights and tail lights and be quite annoying. So, what we need patients to be aware of is that if they have been told that they have even the beginning of cataracts and are becoming fearful of night driving they need to bring this to our attention so that together we can discuss and consider whether it might be time to consider whether cataract surgery might be a good option to help you regain your night driving comfort level.

If you or someone you know feels they have night driving problems that might be related to cataracts or has a question about cataracts, cataract surgery or lens implants please call The Eye Clinic of Texas, an affiliate of Houston Eye Associates, at 800-423-3937, visit The Eye Clinic of TexasGoogle+ or facebook.com/ecot.lasik.

The Eye Clinic of Texas is an affiliate of Houston Eye Associates, the largest ophthalmology clinic in the nation. We are a leading eye care practice serving the greater Houston, Galveston, League City and Texas City with offices at 1100 Gulf Freeway, Suite 114, League City, Texas 77573, 7111 Medical Center Drive, Suite 110, Texas City, Texas 77590 and 2302 Avenue P, Galveston, Texas.

The Eye Clinic of Texas wants to remind patients to please be sure to keep their diabetic eye exam appointments. Although there is no cure for diabetic retinopathy, with careful management of risk factors such as blood sugar levels, cholesterol levels, moderation of alcohol consumption and routine exercise along with regular annual dilated eye exams, the potential vision loss from diabetes and associated diabetic eye problems can be minimized. Further, this requires that patients do their part and keep a strict schedule and compliance with their eye doctor’s recommendations for diabetic eye exams and testing.

Research on Diabetic Eye Exam Compliance

Researchers reporting in Ophthalmology, the journal of the American Academy of Ophthalmology, studied and identified variables that predict adherence with annual eye examinations using the Compliance with Annual Diabetic Eye Exams Survey (CADEES), a new questionnaire designed to measure health beliefs related to diabetic retinopathy and annual eye examinations.

Patient Factors: A number of factors seemed to influence diabetic patient compliance with annual eye exams including whether they thought their insurance covered most of the eye examination cost, whether it was difficult to schedule or physically get to an eye exam appointment, whether patients had been counseled and made obtaining an eye examination a top priority and whether they had been previously told that they had signs of diabetic retinopathy. Clinician Factors: Clinicians can also help patients with compliance with the diabetic eye exams by counseling newly diagnosed patients and those with uncontrolled blood glucose more diligently on the importance of annual eye examinations and discussing and helping patients remove perceived barriers and misconceptions.

If you or someone you know has diabetes they need to have regular annual dilated eye exams to prevent vision loss from diabetic eye diseases and problems. Please share this information with anyone you know who is diabetic and ask them to call The Eye Clinic of Texas, an affiliate of Houston Eye Associates, at 800-423-3937, visit The Eye Clinic of TexasGoogle+ or facebook.com/ecot.lasik.

The Eye Clinic of Texas is an affiliate of Houston Eye Associates, the largest ophthalmology clinic in the nation. We are a leading eye care practice serving the greater Houston, Galveston, League City and Texas City with offices at 1100 Gulf Freeway, Suite 114, League City, Texas 77573, 7111 Medical Center Drive, Suite 110, Texas City, Texas 77590 and 2302 Avenue P, Galveston, Texas.

Help for Dark Circles Under Your Eyes

A very common complaint we hear is the appearance of dark circles under the eyes. Patients often ask us for help with these dark circles, but first we must find the cause for each patient because and we need to address them and treat them differently.

Too Much Eyelid Fat

The space behind the eye, known as the orbit, contains a significant amount of fatty tissue. Orbital fat helps to cushion the eye from impact, however, as we get older, the support structures which keep the fat behind the eye weaken, and the fat moves forward into the eyelids. This results in fullness to the lower eyelids which most people find aesthetically unpleasing. This fullness, commonly referred to as “bags under the eyes”, makes people look older and tired. The best treatment for this type of problem is usually removal of excess fat with a lower eyelid blepharoplasty procedure. Excess skin can be trimmed and tightened at the same time.

Lower Eyelid Hollowness

Dark circles under the eyes can also be caused by a depression or hollowness in the lower eyelids. Patients who have this problem can usually feel the underlying bone when the area of hollowness is touched. Today, we are able to treat the hollowness with injectable volumizing gel fillers whose qualities make them appropriate for the delicate eye area. These non surgical treatments typically last 6-12 months. If the results are not completely satisfactory sometimes it becomes necessary to perform fat grafting or repositioning of fat to reduce hollows under the eyes as well as performing a lid tightening procedure known as canthoplasty to improve the lower eyelid contour.

Hyperpigmentation of Eyelid Skin

Sometimes dark circles under the eyes can be caused by too much pigmentation of the skin, although this is the least common cause. Patients often think that they have hyperpigmentation but what they are seeing is shadows from excess eyelid fat or hollowness at the orbital rim. If after examination and consultation patients do in fact have too much pigmentation of the eyelids we can use prescription bleaching creams that might be helpful.

If you or someone you know has questions about dark circles under their eyes or needs to schedule an appointment, please call The Eye Clinic of Texas, an affiliate of Houston Eye Associates, at 800-423-3937, visit The Eye Clinic of Texas, Google+  or facebook.com/ecot.lasik.

The Eye Clinic of Texas is an affiliate of Houston Eye Associates, the largest ophthalmology clinic in the nation. We are a leading eye care practice serving the greater Houston, Galveston, League City and Texas City with offices at 1100 Gulf Freeway, Suite 114, League City, Texas 77573, 7111 Medical Center Drive, Suite 110, Texas City, Texas 77590 and 2302 Avenue P, Galveston, Texas.

Computer screens, video display terminals (VDT) and even iPads, tablets and phone screens can actually cause symptoms of dry eyes according to some important research findings. According to researchers publishing in the American Journal of Ophthalmology, users of video display screens or computer terminals are at greater risk for symptoms of dry eyes and dry eye disease (DED). In this study a group of 672 young and middle-aged Japanese office workers who used video display terminals (VDT) completed questionnaires and underwent dry eye testing. Of the 672 workers, 76.5% had definite dry or probable dry eye disease with the percentage being higher in woman than men and higher in office workers over 30 years of age especially if they used computers more than 8 hours per day. Thus, DED is common among young to middle-aged VDT or computer screen users.

Help for Dry Eyes from Computers

It is recommended that anyone using VDT or computer screens of any type, for moderate to long periods of time or even those who notice increased dryness or grittiness should take measures to try and keep the eye surface moist and intact such as the use of lubricants, artificial tears or even more aggressive measures if the extensive use of the VDT or computer screens is a daily event. This may entail the insertion of microscopic plugs into the tear ducts and prescription eye drops such as Restasis to help you make more of your own tears.

If you or someone you know has questions or needs to schedule an appointment for help for dry eyes, please call The Eye Clinic of Texas, an affiliate of Houston Eye Associates, at 800-423-3937, visit The Eye Clinic of Texas, Google+  or facebook.com/ecot.lasik.

The Eye Clinic of Texas is an affiliate of Houston Eye Associates, the largest ophthalmology clinic in the nation. We are a leading eye care practice serving the greater Houston, Galveston, League City and Texas City with offices at 1100 Gulf Freeway, Suite 114, League City, Texas 77573, 7111 Medical Center Drive, Suite 110, Texas City, Texas 77590 and 2302 Avenue P, Galveston, Texas.

Keri R. speaks about Zeiss VisuMax All Laser Bladeless LASIK…….
“I had my LASIK with the new Zeiss VisuMax Laser.  I was the third patient to have surgery with this new later so naturally I was nervous.  Both of my parents had LASIK at The Eye Clinic of Texas, so even though I was nervous, I knew that I would be taken care of.  They told me that I wouldn’t feel a thing during surgery with this new laser and they explained the whole procedure to me.  The procedure went exactly as described and I was amazed at how quickly I noticed a change in my vision.  Literally, the moment I sat up from surgery, I could already read the clock on the wall.  That was something I could not have done without my glasses or contacts prior to surgery.  I am so happy I had LASIK! Dr. Van is awesome!’

If you or someone you know has questions about LASIK or would like to schedule a Zeiss VisuMax All Laser LASIK Free Consultation please call The Eye Clinic of Texas, an affiliate of Houston Eye Associates, at 800-423-3937, visit The Eye Clinic of Texas, Google+  or facebook.com/ecot.lasik.

The Eye Clinic of Texas is an affiliate of Houston Eye Associates, the largest ophthalmology clinic in the nation. We are a leading eye care practice serving the greater Houston, Galveston, League City and Texas City with offices at 1100 Gulf Freeway, Suite 114, League City, Texas 77573, 7111 Medical Center Drive, Suite 110, Texas City, Texas 77590 and 2302 Avenue P, Galveston, Texas.

What do calcium, osteoporosis and cataracts have to do with each other? Most people are aware that calcium plays an important role in bone health and the occurrence of osteoporosis. But, most people are unaware that calcium is also an important factor in cataract formation and development.

Research on Calcium, Osteoporosis & Cataract Development

Researchers reporting in the journal Clinical Ophthalmology shared some interesting information regarding an association between cataracts, cataract surgery and osteoporosis.

 

calcium

 

The researchers evaluated the association between osteoporosis and cataracts.

First the noted that age, female sex, higher socioeconomic class, smoking, chronic renal failure, hyperthyroidism, rheumatoid arthritis and inflammatory bowel diseases are all associated with an increased prevalence of osteoporosis. Then through careful statistical modeling also found that these factors and osteoporosis are ALL associated with an increased prevalence of cataracts.

Thus, they concluded that osteoporosis is associated with the presence of cataracts which may be related to calcium imbalance, hormonal abnormalities, and even a shared genetic predisposition.

If you or someone you know is concerned about osteoporosis and their risk of cataracts, please feel free to call The Eye Clinic of Texas, an affiliate of Houston Eye Associates, at 800-423-3937, visit The Eye Clinic of Texas, Google+  or facebook.com/ecot.lasik.

The Eye Clinic of Texas is an affiliate of Houston Eye Associates, the largest ophthalmology clinic in the nation. We are a leading eye care practice serving the greater Houston, Galveston, League City and Texas City with offices at 1100 Gulf Freeway, Suite 114, League City, Texas 77573, 7111 Medical Center Drive, Suite 110, Texas City, Texas 77590 and 2302 Avenue P, Galveston, Texas.

Charles T. shared his cataract surgery and ReSTOR® Lens implant story…..
“After my initial visit with Dr .Van, I was confident in her ability to improve my vision with the multifocal ReSTOR lens implant.  Not only did this improve my vision, but it totally eliminated the need for wearing glasses for reading and driving.  I have recommended Dr. Van and her staff to many friends.  I am so happy with my experience with Dr. Van and my vision.”

If you or someone you know has questions about cataracts, cataract surgery or lens implants or needs to schedule an appointment for a cataract evaluation, please call The Eye Clinic of Texas, an affiliate of Houston Eye Associates, at 800-423-3937, visit The Eye Clinic of TexasGoogle+  or facebook.com/ecot.lasik.

The Eye Clinic of Texas is an affiliate of Houston Eye Associates, the largest ophthalmology clinic in the nation. We are a leading eye care practice serving the greater Houston, Galveston, League City and Texas City with offices at 1100 Gulf Freeway, Suite 114, League City, Texas 77573, 7111 Medical Center Drive, Suite 110, Texas City, Texas 77590 and 2302 Avenue P, Galveston, Texas.

Botox Cosmetic

Understanding Facial Wrinkles

Understanding a bit about facial wrinkles will allow us find the best ways to help you look your best-as facial wrinkles are not all the same! Facial wrinkles vary from fine surface lines to deeper creases and folds. Wrinkles can actually be grouped into two types: Dynamic Wrinkles, which are formed when muscles contract, or Static Wrinkles, which are lines or depressions that exist even when there is no muscle action or pull on the skin. Dynamic wrinkles are best treated with BOTOX® Cosmetic, Dysport® or Xeomin® whereas static wrinkles are best treated with substances that plump up, volumize and fill out the problem lines. These substances are known medically as “dermal fillers” or “gel fillers. Gel fillers are easy to inject and are biodegradable and thus not permanent. The most popular dermal fillers are Radiesse®, Restylane® and JUVÉDERM®. Depending on your areas of concern and the type of wrinkle, we may suggest just using BOTOX® Cosmetic, or Radiesse®, JUVÉDERM™ or Restylane®, or perhaps injecting a combination of the materials in order to achieve the best possible results.

If you or someone you know has questions or needs to schedule an appointment for a cosmetic consultation please call The Eye Clinic of Texas at 800-423-3937, visit The Eye Clinic of Texas, Google+  or facebook.com/ecot.lasik.

The Eye Clinic of Texas is an affiliate of Houston Eye Associates, the largest ophthalmology clinic in the nation. We are a leading eye care practice serving the greater Houston, Galveston, League City and Texas City with offices at 1100 Gulf Freeway, Suite 114, League City, Texas 77573, 7111 Medical Center Drive, Suite 110, Texas City, Texas 77590 and 2302 Avenue P, Galveston, Texas.

 

The Eye Clinic of Texas suggests that patients to be knowledgeable about UV exposure, the risks of eye damage and injury and the need to wear sunglasses or UV protecting eyewear-especially if they have had previous eye surgery such as LASIK or cataract surgery. The risk of sun and UV damage to your eyes occurs both due to short term exposure as well as over the long term on a cumulative basis. Thus, you may or may not feel the UV effects immediately and it is easy to become complacent. Further, most people don’t realize that the risk of UV eye damage can literally change from day to day with the weather, the cloud cover and your physical location. Sunny days at the beach are certainly riskier than cloudy days and thus you may need to adjust the time you spend in the sun along with being particularly cautious about wearing properly selected and fit sunglasses at that time. LASIK patients and cataract surgery patients with advanced technology lens implants most often don’t need to wear eyeglasses after their surgery-and they often just forget about the need for UV protection. We want them to remember!

Patients visiting Texas EyeWear Opticians at The Clinic of Texas will find a wide range of UV protecting eyeglass lenses and sunglasses available to choose from. Eye protection from UV needs to be complete but doesn’t have to be overly expensive. High quality sunglasses should block out 99-100 percent of both UV-A and UV-B radiation. It is also important to have UV protection in everyday eyewear, which is readily available with a number of UV blocking eyeglass lens materials, specialized coatings and photochromic lenses.

If you or someone you know has a question or concerns about ultraviolet (UV) eye damage and injury and how to select protective eyewear please feel free to call The Eye Clinic of Texas, an affiliate of Houston Eye Associates, at 800-423-3937, visit The Eye Clinic of Texas or facebook.com/ecot.lasik.

The Eye Clinic of Texas is an affiliate of Houston Eye Associates, the largest ophthalmology clinic in the nation. We are a leading eye care practice serving the greater Houston, Galveston, League City and Texas City with offices at 1100 Gulf Freeway, Suite 114, League City, Texas 77573, 7111 Medical Center Drive, Suite 110, Texas City, Texas 77590 and 2302 Avenue P, Galveston, Texas.