Services

Cataract Service

Cataract (cataract) affects your eyes and makes your vision foggy. The only form of treatment is surgery.

Cataract is one of the most common conditions for which patients require surgery. It involves removing the cloudy lens which is obstructing vision from the eye and replacing it with an intraocular lens.

In cataracts, the lens in the eye becomes cloudy and the vision becomes foggy. It can be compared to when a camera lens is scratched, then the marks will appear on the pictures. Cataracts usually affect both eyes, although it is possible that only one eye is affected.

Many believe that cataracts occur on the surface of the eye, but cataracts strike the lens that sits inside the eye, just behind the rainbow that encircles the pupil. Cataracts are common, especially in the elderly. One-third of all over 65 have cataracts.

Treatment of cataract surgery

Surgery is the only treatment for cataracts. During surgery, the surgeon removes the misty lens in your eye and replaces it with an artificial clear lens. It’s a simple operation, and it usually only takes 5-15 minutes. Most likely you will be able to go home the same day.

How can cataract surgery help me?
After surgery, your vision should be improved. More than 9 out of 10 who have undergone cataract surgery look good enough to drive. As your vision improves, you may be able to enjoy your life more. There is research that shows that the likelihood of injury in an accident or a fall is reduced after the cataract surgery.

It may take a few days before you notice the full effect of the operation, and it is rare for the vision to become perfect. Many people still need to wear glasses, and you may need new glasses before the result is optimal.

Most artificial lenses will not be able to shift focus. This means that you will need different glasses for reading and looking at long distances.

New artificial lenses that can change focus and give clearer vision than standard lenses are being tested, but they can be difficult to get used to. These are called multifocal and accommodating lenses. Some research has shown that they work better at short distances. Some will experience more glare in backlighting and light refraction around objects (halo). If the doctor recommends accommodating lenses, he or she will inform you of the benefits and disadvantages.

If you have another eye problem in addition to cataract, it may affect the outcome of the operation. The doctor can say something about how great the benefits of the surgery will be to you.



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Frequently asked questions

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  • What are Vision Screenings?
  • Are children’s vision screenings helpful?
  • Passing a vision screening
  • Do adults need more frequent eye exams?
What are Vision Screenings?

Vision screenings are not comprehensive eye exams. Screenings usually take only a few minutes and are often performed by volunteers who are not eye care professionals.

In many cases, vision screenings are nothing more than a visual acuity test where you’re asked to identify the smallest letters you can on a vision chart across the room.

Vision screenings typically are designed to only detect subnormal visual acuity and major vision problems — as quickly and cost-effectively as possible. They generally are ineffective for detecting more subtle vision problems and potentially sight-robbing eye diseases.

People who fail a vision screening (usually because their visual acuity is worse than 20/40) are made aware of this and are encouraged to visit an eye doctor so they can have their vision problem professionally diagnosed and treated with eyeglasses, contact lenses, medicine or surgery.

Are children’s vision screenings helpful?

Good vision is essential for children to reach their full academic potential. It’s been widely stated that roughly 80 percent of what children learn in school is presented visually, and vision problems can have a profound effect on learning.

According to the American Optometric Association, an estimated 20 percent of preschool children have vision problems. Other research shows that 24 percent of adolescents with correctable refractive errors (nearsightedness, farsightedness and/or astigmatism) don’t have their vision fully corrected with up-to-date prescription eyeglasses or contact lenses.

Passing a vision screening

Even if your child passes a school vision screening, it doesn’t guarantee he or she has perfect vision or has all the required visual skills needed for optimum performance in the classroom.

In fact, a number of studies have identified significant challenges and shortcomings of children’s vision screenings, including:

  • Children with significant learning-related vision problems being able to pass simple school vision screenings
  • Poor consistency of screening results among different volunteers conducting the testing
  • Parents being unaware their child failed a vision screening
  • Lack of follow-up to make sure children who fail screening actually have an eye exam
  • Also, poor standardization of vision screening standards among different states and lack of reporting requirements make it impossible to adequately evaluate the effectiveness of school vision screenings.
Do adults need more frequent eye exams?

On the other end of the age spectrum, many older Americans often forgo routine eye exams and falsely believe that free vision screenings offer adequate monitoring and protection of their eyesight.

This is extremely dangerous, since the most common causes of blindness — glaucoma, diabetic retinopathy and macular degeneration — increase with age. Vision loss often can be prevented or reduced if these conditions are diagnosed and treated early. But the only way this can be done is to have routine comprehensive eye exams.

Don’t take chances with your eyesight as you get older. It may be sufficient to have a comprehensive eye exam every two years in your early adult life. But if you’re over age 60, have an annual eye exam to preserve your vision and make sure you are seeing the world as clearly as possible.



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Copyright by Medicare Eye Hospital 2018. All rights reserved.



Copyright by Medicare Eye Hospital 2018. All rights reserved.