20.Thanks to modern technologies,we now have the solutions to most eyesight problems.Doctors can use different treatments-PRK,Lasik (鐳射視力矯正術(shù)),Lasek and Intraocular
Lenses-to solve all types of eyesight problems while limiting the side effects.People believe eye operations are about as safe and effective as surgery (外科手術(shù)) can be.However,for an industry that promises clearness,many hospitals have kept their patients in the dark about the risks and realities.Governments are of no help either as there are no limits to who can buy medical instruments.
Despite a good record of the surgery,thousands of people around the world suffer from an eye operation that goes wrong.The consumer-advocate website surgicaleyes.com posts an astonishing series of unhappy endings-infected corneas(角膜),triple vision (三重視覺(jué)) and permanently damaged eyesight.The message boards are full of people who came out of Lasik with far better vision but still in great unhappiness,affected by poor night vision,dry eyes and worse.It's vital to research the subject if you're considering surgery.Here's a guide to help you see things clearly.
Know what you're getting into.If you believe all the ads,after eye surgery,you'll be able to read the bottom line of an eye chart through a brick wall.If only it were true.You may not end up with a vision as good as is promised.Besides,eye surgery still isn't fit for people with certain severe vision problems or an eye disease.The same goes for children under 18and pregnant women,whose eyes may be experiencing changes.So don't be shocked if a doctor gazes into your eyes and shows you the door.Finally,be prepared for side effect.Some complain of dry eyes and require eye drops known as artificial tears for months.Others see light circles and star bursts while driving at night.Fortunately such symptoms tend to be minor and fade away.
Find a doctor.Ask friends for recommendations or look for one on the Internet.Whatever you do,don't make a decision on a rock-bottom price.You have only one set of eyes.
Ask the doctor right questions:Who will be doing the operation?Being easily available and open communication with the doctor and his team are typical features of a good practice.What are your qualification certificates'?How much experience do you have?What's your complication rate(并發(fā)癥比率)?The best doctors have a serious surgical complication rate below 1percent.Beware of doctors who can't answer these questions.Finally,what's included in the price?Watch out for hospitals that offer a low price and then charge for extras for later visits.
12.From the first paragraph we know thatC.
A.doctors can deal with any eyesight problem without side effects
B.people are still concerned about the safety and effect of eye surgery
C.some hospitals don't tell the patients all the truth about eye surgery
D.government now do not care who can buy medical instruments
13.The writer mentions some information from a website to show thatA.
A.the risk of having eye surgery is higher than expected
B.more and more people begin to take eyesight surgery
C.eyesight surgery can not bring people true happiness
D.much information about eye surgery on the Internet is false
14.By using the underlined words"shows you the door",the writer means the doctorB.
A.shows you how to get to the operating room
B.will not carry out an eyesight operation on you
C.examines your eyesight with an eye chart on the door
D.a(chǎn)sks you to open the door and let the next patient in
15.According to the passage,what kind of doctor is preferable for eye surgery?C
A.A doctor who offers a low price
B.A doctor with a high complication rate.
C.A doctor willing to communicate with patients
D.A doctor working in a large hospital.