Tag Archives: Cornea

Two Common Problems With Vision

Posted by on Wednesday, 22 December, 2010 Comments Off

vision 300x225 Two Common Problems With VisionPoor vision is actually a fairly common problem. Although everyone wishes they had 20/20 vision, the fact of the matter is that a large percentage of the world population has problems with their eyesight. For this reason millions of people turn to eyeglasses, contacts, or refractive surgery as solutions to poor vision problems. Some of the most common eye problems are known in the medical world as myopia and hyperopia. More commonly these eye problems are referred to as nearsightedness and farsightedness.

Myopia, or nearsightedness, is a refractive defect of the eye which makes it so that close objects are seen clearly, but objects that are farther away appear out of focus or fuzzy. Myopia is a result of an eyeball that is too long or a cornea that has too much curvature. As a result, the light coming into the eye can’t be focused properly. Fortunately, myopia can be treated easily with eyeglasses, contacts, and refractive surgery. If you suspect you have myopia, visit an optometry clinic for an eye exam.

The other problem is called hyperopia or farsightedness. People with hyperopia have the opposite problem; objects that are near are fuzzy and out of focus, while distant objects appear clear. This occurs if the eyeball is too short or the cornea doesn’t have enough curvature. Fortunately, like myopia, hyperopia can be corrected with eyeglasses, contacts, or refractive surgery. If you have trouble with your vision, it’s important to visit a medical professional for an eye exam to diagnose the problem and find out how to correct it.

Incoming search terms:

  • structure of astigmatism
  • VISION problems
  • what is astigmatism

What Is Astigmatism And How To Correct It

Posted by on Sunday, 19 December, 2010 Comments Off

eye 300x200 What Is Astigmatism And How To Correct ItUnfortunately, even-though astigmatism is fairly common eye disorder that can occur by both adults and kids, it is still not clear what causes astigmatism. Some experts believe that it could be hereditary and as such even present at birth. Some other causes include the eye injury, incorrect posture or eye disease. Since so many people may be affected by astigmatism the question:”What is astigmatism?” is fair to ask.

So, what is astigmatism?

Astigmatism is referred to as so-called refractive error of the eye and in most cases it is caused by the change in the shape of the cornea. Cornea is responsible for refracting the light rays and if its shape is irregular that will than affect where the rays will meet, before or after the retina and consequently we talk about nearsightedness, farsightedness or if retina takes a shape of the football than we talk about astigmatism.

What are symptoms of astigmatism?

Some of the most common symptoms of astigmatism include: blurred vision eyestrain headache fatigue Should we experienced the above symptoms it doesn’t have to mean we are astigmatic but it is always good idea to visit out eye doctor. Treatment options for astigmatism Luckily there are several treatment options available including surgical and non surgical. Among non-surgical some of the most known are corrective lenses while there are many different surgical procedures with most popular being LASIK and LASEK among the others

Read more »

Incoming search terms:

  • eye astigmatism causes
  • eye with astigmatism

LASIK

Posted by on Wednesday, 3 March, 2010 Comments Off

LASIK is an elective laser eye surgery that reshapes the advance aboveground of the eye (the cornea) to meliorate modality. It is the most nonclassical modality reproval surgery performed in the One States and worldwide.

LASIK can turn a ample comprise of ametropia (nearsightedness), farsightedness (farsightedness) and astigmia. Variations and enhanced versions of LASIK allow all-laser LASIK, duty LASIK (also called surface LASIK or wavefront-guided LASIK) and multifocal LASIK.

LASIK is the most commonly performed refractive surgery work. You may see fill business it “LASIX,” but the correct family is LASIK, which is make for “laser-assisted in situ keratomileusis.”

Why is it so general? LASIK has advantages over separate modality penalisation procedures, including a relative lack of pain afterward and the fact that gracious exteroception ordinarily is achieved by the really next day.

An helper titled a microkeratome is utilized in LASIK eye surgery to make a rare, cyclic displace in the cornea. Another, newer way of making the displace is with a laser.

The physician folds the hinged fluttering aft out of the way, then removes few corneal paper underneath using an excimer laser. The excimer laser uses a nerveless ultraviolet weak radiate to precisely disappear (“ablate”) real tiny bits of tissue from the cornea to reshape it.

When the cornea is reshaped in the appropriate way, it entireness finer to centre illuminating into the eye and onto the retina, providing clearer modality than before. The flutter is then laid substantiate in square, cover the region where the corneal tissue was separate.

Both nearsighted and presbyopic fill can aid from the LASIK procedure. With myopic grouping, the content is to deform the too-steep cornea; with hypermetropic group, a steeper cornea is wanted. Excimer lasers also can turn status by smoothing an unorthodox cornea into a many inborn conformation.