Boston Glaucoma Specialist on Narrow Angle Glaucoma

Boston Glaucoma Specialist Bin Wu, M.D. clarified facts about a type of glaucoma called narrow angle glaucoma. “Given the seriousness of narrow angle glaucoma it is important for people to understand more about its risks and symptoms in order to avoid the potential for vision loss,” commented Dr. Wu of  D’Ambrosio Eye Care with offices in Athol, Lancaster, Acton & Gardner. “A narrow angle is an anatomical configuration in the eye that under certain conditions can result in high eye pressure. High eye pressure may lead to glaucoma. The presence of and the  diagnosis of narrow angles is not the same as a diagnosis of glaucoma as only a small percentage of patients with narrow angles actually develop narrow angle glaucoma. As with many eye conditions, problems and diseases, early diagnosis and treatment can prevent the development of angle closure glaucoma,” further explained Dr. Wu.

The angle of the eye is located at the junction between the iris-the colored part of the eye-and the cornea which is clear curved dome in the front of the eye. Inside the eye-behind the iris-is a ring like structure called the ciliary body which continually produces fluid called aqueous humor. The aqueous fluid flows over the lens, then through the pupil and drains internally from the eye via the trabecular meshwork which is located at the “angle”. As long as aqueous is drained at roughly the same rate it is produced, the eye maintains a normal pressure. If aqueous cannot drain as quickly as it is made, the eye pressure will go up. If it goes up slowly due to too much fluid being produced or too little fluid be drained, it can cause the eye pressure to rise resulting in open angle glaucoma. If the pressure rises quickly because the angle is too narrow or even closed or blocked it can cause a rapid rise in eye pressure resulting in narrow angle glaucoma.

Dr. Wu further explained, “The crystalline lens inside the eye grows throughout life and actually increases in size. As its size increases it can move the iris forward and slowly narrow or crowd the angle. Narrow angles tend to be seen more commonly as we age and some eyes are more predisposed to narrow angles than others. Narrow angles are more commonly found in people over the age of 40, females, farsighted or hyperopic patients, and in people of East Asian, African and Inuit descent.”

“Unlike open angle glaucoma which really produces no symptoms, symptoms that the angle is closing intermittently include episodes of blurred vision, perhaps seeing halos around objects, a headache-like pain around the eye or brow and even red eye,” explained Dr. NAME. “These symptoms can sometimes resolve spontaneously and may occur periodically over days or weeks. In addition, if the angle closes and does not reopen spontaneously, you may experience nausea and vomiting,” Dr. Wu further explained, “If this happens you need to call us right away and tell us you need an immediate appointment.”

If you or someone you know would like to learn more about narrow angle glaucoma or are concerned about having narrow angles please schedule an eye examination at D’Ambrosio Eye Care by calling us at 800-325-3937, visiting D’Ambrosio Eye Care or facebook.com/dambrosioeyecare.

D'Ambrosio Eye Care is a leading eye and LASIK care practice with office locations at 479 Old Union Turnpike, Lancaster, Massachusetts 01523, 100 Powder Mill Road, Acton, Massachusetts 01720, 413 Main Street, Athol, Massachusetts 01331 and 74 Main Street,Gardner, Massachusetts 01440 that serve the greater Boston and central Massachusetts area.

Boston Glaucoma Specialist on Medical Marijuana

Medical marijuana is promoted as a treatment for many diseases, including glaucoma. Boston Glaucoma Specialist Bin Wu, M.D. discussed medical marijuana and glaucoma. “Glaucoma is an eye disease in which the optic nerve becomes damaged over time, reducing peripheral vision. If not properly diagnosed and treated it can lead to blindness. One cause of the optic nerve damage in glaucoma is higher-than-normal pressure within the eye, called intraocular pressure or IOP,” explained Dr. Wu of D’Ambrosio Eye Care with offices in Athol, Lancaster, Acton & Gardner, Massachusetts. Currently glaucoma treatment for the most part is to lower IOP levels with eye drops, laser treatment, oral medications and sometimes surgery depending on the type of glaucoma and how severe it is.”

The idea that marijuana can be helpful in treating glaucoma dates to the 1970s. Studies conducted then showed that smoking marijuana lowered the IOP of people with glaucoma. As a result of this research, additional studies were conducted examining whether marijuana or its active ingredient, a compound known as THC, could be used to keep IOP lowered. This research was supported by the National Eye Institute, a division of the National Institutes of Health. The research found that when marijuana is smoked or when a form of its active ingredient is taken as a pill or by injection, it does lower IOP. However, it only lowers IOP for a short period of time-about three or four hours. This short period of time is a major drawback for the use of marijuana as a glaucoma treatment. Because glaucoma needs to be treated 24 hours a day, you would need to smoke marijuana six to eight times a day around the clock to receive the benefit of a consistently lowered IOP. Because of marijuana's mood-altering effect, smoking so much of it daily would leave you too impaired to drive, operate equipment or function at the peak of your mental ability.

The effect that marijuana has on your ability to function is not the only side effect from the drug, however. Marijuana cigarettes contain hundreds of compounds that damage the lungs. Research has shown that regular and frequent use of marijuana, particularly in high doses, can cause problems with short-term memory and concentration.

As scientists learn more about glaucoma, they have also come to understand that IOP is not the only factor that damages the optic nerve. Recent studies characterize glaucoma as a neurologic disease similar to Parkinson's or Alzheimer's. And, there is increasing evidence that reduced flow of blood to the optic nerve may also cause damage in patients with glaucoma. Unfortunately, marijuana not only lowers IOP, but it lowers blood pressure throughout the body. As a result, it has the potential to lower the blood flow to the optic nerve, effectively canceling out the benefit of a lowered IOP.  So, while marijuana can temporarily lower your IOP, it's not recommended for treating glaucoma. Prescription medications, laser and surgical treatments have been tested and proven as effective treatments for the glaucoma.

If you or someone you know has questions about eye exams, glaucoma and medical marijuana they are encouraged to schedule an eye examination at D’Ambrosio Eye Care by calling us at 800-325-3937, visiting D’Ambrosio Eye Care or facebook.com/dambrosioeyecare so that we can help recommend an appropriate treatment plan.

Staffed by a team of Ophthalmologists, Optometrists, Opticians, technical and administrative staff who provide eye examinations for adults and children, cataract surgery and intraocular lens implants (IOL), laser vision correction such as LASIK, diagnosis and treatment of cornea disease including cornea transplants, care for diseases of the retina including diabetes and age related macular degeneration and diagnosis and treatment of glaucoma as well as contact lenses, eyeglasses, eyewear  and optical services.

D'Ambrosio Eye Care is a leading eye and LASIK care practice in Athol, Lancaster, Gardner and Acton that serves the greater Boston and central Massachusetts area including Acton, Athol, Berlin, Bolton, Boylston, Boxborough, Chelmsford, Clinton, Concord, Fitchburg, Gardner, Greenfield, Groton, Harvard, Hudson, Lancaster, Leominster, Lexington, Littleton, Lowell, Lunenburg, Marlborough, Milford, Shelburne Falls, Shirley, Sterling, Stow, Sudbury, Templeton, Westminster, Westborough, Winchendon and Worcester, Massachusetts.

Massachusetts Glaucoma Specialist on Eye Drop iPhone App





Massachusetts Glaucoma Specialist Bin Wu, M.D shared information about a free smartphone app to remind glaucoma patients to take their eye drops and medications. “One of our greatest challenges in the treatment of glaucoma is when patients don’t remember to use their glaucoma eye drops or take their other medications,” explained Dr. Wu of D’Ambrosio Eye Care with offices in Athol, Lancaster, Acton & Gardner. “The free smartphone EyeDROPS app should help us get better patient compliance and consistency with their glaucoma medications and thus hopefully better control of the eye disease.”

The EyeDROPS app prompts users to enter information about the eye drops they are taking, including dosages and schedules. The app then alerts patients via their phones when it’s time to put in their eye drops. The app keeps a record of medication usage and informs the patient of the next scheduled dosing time. The free EyeDROPS app even allows patients to take a photo of each bottle to avoid confusion when taking more than one kind of eye drop. The EyeDROPS app is available for Android phones through Google Play and for the Apple iPhone through the App Store. “Early detection, diagnosis and consistent treatment is the name of the game in preventing vision loss from glaucoma,” said Dr. Wu.

If you or someone you know has glaucoma and would like more information about the EyeDROPS app they are encouraged to contact D’Ambrosio Eye Care by calling us at 800-325-3937, visiting D’Ambrosio Eye Care or facebook.com/dambrosioeyecare.

Staffed by a team of Ophthalmologists, Optometrists, Opticians, technical and administrative staff who provide eye examinations for adults and children, cataract surgery and intraocular lens implants (IOL), laser vision correction such as LASIK, diagnosis and treatment of cornea disease including cornea transplants, care for diseases of the retina including diabetes and age related macular degeneration and diagnosis and treatment of glaucoma as well as contact lenses, eyeglasses, eyewear and optical services.

D'Ambrosio Eye Care is a leading eye and LASIK care practice in Athol, Lancaster, Gardner and Acton that serves the greater Boston and central Massachusetts area including Acton, Athol, Berlin, Bolton, Boylston, Boxborough, Chelmsford, Clinton, Concord, Fitchburg, Gardner, Greenfield, Groton, Harvard, Hudson, Lancaster, Leominster, Lexington, Littleton, Lowell, Lunenburg, Marlborough, Milford, Shelburne Falls, Shirley, Sterling, Stow, Sudbury, Templeton, Westminster, Westborough, Winchendon and Worcester, Massachusetts.

Massachusetts Specialist on Glaucoma Awareness Month



Massachusetts Glaucoma Specialist Bin Wu, M.D. commented, “As we begin 2013, we are making raising awareness about glaucoma a priority”, stated Dr. Wu. “We all need to take an extra step to remind patients and their families about the need for regular eye exams with glaucoma screenings,” emphasized Dr. Wu of D’Ambrosio Eye Care with offices in Athol, Lancaster, Acton & Gardner.

According to the most recent statistical data provided by Prevent Blindness America in 2012, 2,719,379 people age 40 and older have open-angle glaucoma, which reflects a 22 percent increase over 2000-a 22% increase. Prevent Blindness America has designated January as National Glaucoma Awareness Month.

Dr. Wu continued, “Patients should be particularly sensitive to the fact that in African-American and Hispanic populations, glaucoma is the leading cause of blindness. Further, other glaucoma risk factors include any family history-especially among siblings-of glaucoma, certain diseases such as diabetes and an increase in glaucoma risk as patients transcend through their 40’s, 50’s and 60’s.”

“The key step in preventing vision loss from glaucoma is early detection, diagnosis and treatment”, said Dr. Wu. “This is why we want raise awareness about the importance of regular eye examinations to preserve vision especially for our aging population. We strongly recommend that siblings of glaucoma patients be screened each and every year as their risk of developing glaucoma is some 5 times higher than the typical population.”

If you or someone you know is concerned about glaucoma risk or has any family history of glaucoma they are encouraged to schedule an eye examination at D’Ambrosio Eye Care by calling us at 800-325-3937, visiting D’Ambrosio Eye Care or facebook.com/dambrosioeyecare so that we can help recommend an appropriate treatment plan.

Staffed by a team of Ophthalmologists, Optometrists, Opticians, technical and administrative staff who provide eye examinations for adults and children, cataract surgery and intraocular lens implants (IOL), laser vision correction such as LASIK, diagnosis and treatment of cornea disease including cornea transplants, care for diseases of the retina including diabetes and age related macular degeneration and diagnosis and treatment of glaucoma as well as contact lenses, eyeglasses, eyewear  and optical services.

D'Ambrosio Eye Care is a leading eye and LASIK care practice in Athol, Lancaster, Gardner and Acton that serves the greater Boston and central Massachusetts area including Acton, Athol, Berlin, Bolton, Boylston, Boxborough, Chelmsford, Clinton, Concord, Fitchburg, Gardner, Greenfield, Groton, Harvard, Hudson, Lancaster, Leominster, Lexington, Littleton, Lowell, Lunenburg, Marlborough, Milford, Shelburne Falls, Shirley, Sterling, Stow, Sudbury, Templeton, Westminster, Westborough, Winchendon and Worcester, Massachusetts.

Screening at the Shirley Senior Center



Khyla Lance, O.D.



Recently we were at the Senior Center in Shirley to provide a free vision, glaucoma and cataract screening to their members.  Despite over a foot of snow the day before, quite a few hearty folks ventured out to the Center. 

Following their yoga class, several of the members stopped in.  It was nice to see some familiar faces from our last screening there.
Khaya Lance, O.D. was our Optometrist for the screening.

Glaucoma Awareness Month



Glaucoma is the leading cause of preventable blindness.  Everyone, from infants to seniors is vulnerable.  Moreover, among African-American and Hispanic populations, glaucoma is the leading cause of blindness.

 We are fortunate to have Bin (Benjamin) Wu, M.D. on staff at D'Ambrosio Eye Care.  Dr. Wu is a fellowship-trained glaucoma specialist.  Dr. Wu see patients in all three of our offices.