时间:2018-12-31 作者:英语课 分类:有声英文阅读


英语课

For many of us, walking in the rain can be a pleasant and even soothing 1 experience. For those of us who wear glasses, though, drops of water on the lenses and obscured vision can have us running for cover. Interested in returning to your days before glasses? Good news! Wearing contact lenses is no longer your only option.


Recently, Lasik eye surgery has become the most widely used surgical 2 procedure for vision correction. Myopia, hyperopia, and astigmatism 3 are all caused by an imperfectly shaped eyeball, cornea, or lens. Because of the imperfection, light entering the eye is not clearly focused on the retina.
 
During the Lasik procedure, a thin piece of the cornea is cut and folded back. Then, a laser is used to reshape the lower layer of corneal tissue. After the corneal flap is lowered back into place, it quickly adheres to the eyeball.


The procedure immediately improves the focus of light on the retina. After only one day of recovery, patients already notice a significant difference, and about 70 percent regain 4 20/20 vision. However, Laser eye surgery is not without its risks, so Lasik is not for everyone.


If you are considering Lasik surgery, you should first consult an ophthalmologist and a refractive surgeon to see what is best for your particular situation. After all, you have only got two eyes---and they need to last a lifetime.



1. obscured a. 不清楚的
2. cornea n. 眼角膜
3. retina n. 视网膜
4. flap n. 垂下物,盖



对许多人来说,雨中漫步可能是一种愉快甚至舒服的体验。但是对我们这些戴眼镜的人来说,镜片上的水滴和模糊了的视线,就会让我们跑去避雨。想回到戴眼镜之前的日子吗?好消息!隐形眼镜不再是你唯一的选择。


近来,激光眼科手术成了运用最广泛的矫正视力的外科手术。近视、远视及散光都是由于眼球、角膜或水晶体变形引起的。由于这种变形,进入眼睛的光线无法清楚地聚焦在视网膜上。
在进行激光眼科手术的过程中,眼角膜的一层薄膜被割开并折叠起来。然后,用激光修整下层角膜组织的形状。割开的角膜复位以后,就会迅速地附着在眼球上。


这种手术能立即矫正光线在视网膜上的焦点。只需要休养一天,病人就能发现明显的不同,而且其中百分之七十左右能恢复正常视力。然而,激光眼科手术并不是一点风险都没有的,因此也并不是每个人都适用。


如果你正在考虑是否要进行激光手术,你应该先请教眼科医生和视力矫正外科医生,针对你的个别情况找到最好的治疗手段。毕竟,你只有两只眼睛,而它们是要用一辈子的。



adj.慰藉的;使人宽心的;镇静的
  • Put on some nice soothing music.播放一些柔和舒缓的音乐。
  • His casual, relaxed manner was very soothing.他随意而放松的举动让人很快便平静下来。
adj.外科的,外科医生的,手术上的
  • He performs the surgical operations at the Red Cross Hospital.他在红十字会医院做外科手术。
  • All surgical instruments must be sterilised before use.所有的外科手术器械在使用之前,必须消毒。
n.散光,乱视眼
  • Maybe you fall asleep in class because of uncorrected astigmatism.也许你在课堂上睡觉是因为你的眼睛散光。
  • Astigmatism can occur in addition to nearsightedness and farsightedness.散光可同时发生在近视和远视。
vt.重新获得,收复,恢复
  • He is making a bid to regain his World No.1 ranking.他正为重登世界排名第一位而努力。
  • The government is desperate to regain credibility with the public.政府急于重新获取公众的信任。
学英语单词
amalgamated consolidation
angustior
anticipated loss
antipoverty
automatic terminal information service
axle bolt
Beekfoot
bogaert
bosher
bounded jet
cape ra.
cfm
chemical engine hose
circuities
concurring
consolidation of stock
construction contract
cooling module
Dartmoor pony
defossilization
DESCOM
Distomatales
does a bear shit in the woods
dragged down
electoral court
embryomata
fast facsimile
female chests
fever with aversion to cold
following grouting
Fraxinus rhynchophylla
freies
fresh water goby
funboarder
Graef rotor
guaiacolates
Guerin process
hangerock
have a suit to
high speed reader
high-frequency microvoltmeter
high-speed test controller
imported cabbageworm
intracaudal
iron roll rice polisher
KCM
kerosene blast burner
Lage Zwaluwe
lionesque
locofoco
mediums
microprocessor based information system
Muraenolepididae
neutron excess number
nickel-rich
nmdar
nonrectilinear correlation
orientation phase
passenger number fluctuation coefficient
per nasal
perception(of)light
Pinoy
plaque mutants
preinstall
Pteroceras
quartz (controlled) oscillator
queloz
radar communication
railroad
redox resin
rhinocryptid
Rhizobacter
river gravel
robert floyd curl jr.s
rotating guide vane (rgv)
roundleaf bats
Saxbe fix
screen magnifier
Seller financing
shomyo
signed magnitude arithmetical
slap chip
sociodynamics
sparkling pistol
special emergency
spending boom
sports circles
spousy
Squad Halt
square stone
subtractive polarity
Tabacal, R.
teracycle
three circles theorem
too-close
translation memory
tungsten oxydifluoride
Turkistan
two component system
visual meteor
water roller
zduriencik