Most vision problems are caused by four common refractive errors. If you
are nearsighted, farsighted, have difficulty focusing, or are struggling
with vision loss caused by the natural aging process, speak to an
ophthalmologist about your options for vision correction. Here is an overview of common
refractive errors and treatment options.
Refractive errors occur when the shape of the eye prevents light from focusing
directly on the retina. This causes problems in refraction, the bending
of light as it passes through one object to another. Myopia is a condition
where the distance between the cornea and the retina is too long, causing
light rays to focus in front of the retina instead of on it. Also known
as nearsightedness, myopia makes close objects appear clear while distant
objects appear blurry.
Hyperopia, or farsightedness, is a refractive error that occurs when the
distance between the cornea and the retina is too short. This causes light
rays to focus behind the retina, and hyperopia patients can see distant
objects more clearly while they struggle to make out close objects. People
experience farsightedness differently, and significant hyperopia can make
objects appear blurry at any distance.
Astigmatism is a condition in which the cornea is misshapen and curved,
causing light to focus unevenly on the retina. Patients who suffer from
astigmatism usually complain of objects appearing blurry or stretched out.
As you age, your eye’s lens becomes less flexible. Presbyopia causes
difficulty focusing on close objects. As with
all refractive errors, presbyopia may be treated with glasses, contact lenses, or refractive
surgery such as LASIK. LASIK is a safe, affordable, and effective laser
correction surgery that offers patients the chance to regain 20/20 vision.
If you live in New York City and want to learn more about your options
for laser vision correction surgery, call
Dr. Mark Hornfeld’s office at (212) 580-8881. Dr. Hornfeld offers a full range of ophthalmology services
and specializes in LASIK surgery, cataract surgery, and refractive surgery.