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.”
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.