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cataract    音標拼音: [k'ætɚækts]
n. 大瀑布,奔流,洪水,白內障

大瀑布,奔流,洪水,白內障

cataract
n 1: an eye disease that involves the clouding or opacification
of the natural lens of the eye
2: a large waterfall; violent rush of water over a precipice

Cataract \Cat"a*ract\, n. [L. cataracta, catarracles, a
waterfall, Gr. ?, ?, fr. ? to break down; in the passive, to
fall or rush down (of tumors) to burst; kata` down ? to
break.]
1. A great fall of water over a precipice; a large waterfall.
[1913 Webster]

2. (Surg.) An opacity of the crystalline lens, or of its
capsule, which prevents the passage of the rays of light
and impairs or destroys the sight.
[1913 Webster]

3. (Mach.) A kind of hydraulic brake for regulating the
action of pumping engines and other machines; -- sometimes
called {dashpot}.
[1913 Webster]

146 Moby Thesaurus words for "cataract":
Niagara, ablepsia, amaurosis, benightedness, blepharitis,
blind side, blind spot, blindfolding, blinding, blindness,
blurring the eyes, cascade, cataclysm, cecity, choroiditis, chute,
collapse, come down, comedown, conjunctivitis, crash, cross-eye,
darkness, debacle, declension, declination, defective vision,
defluxion, deluge, depriving of sight, descend, descending,
descension, descent, detached retina, dim-sightedness, dip down,
down, downbend, downcome, downcurve, downfall, downflow, downgrade,
downpour, downrush, downtrend, downturn, downward trend, drop,
drop down, drop off, drop serene, dropping, economic blindness,
engulf, esotropia, ever-during dark, excecation, eye defect,
eyelessness, fall, fall down, fall off, falling, falls, flood,
flooding, force, fresh, freshet, glaucoma, go down, go downhill,
gravitate, gravitation, gutta serena, hoodwinking, inclination,
inundate, inundation, iritis, keratitis, lack of vision, linn,
lose altitude, making blind, nappe, niphablepsia, optic neuritis,
overbrim, overflow, overrun, overwhelm, parachute,
partial blindness, pink eye, pitch, plummet, plummeting, plunge,
pounce, pour, pour down, pour out, pour over, precipitate,
psychic blindness, rain, rapids, reduced sight, retinoblastoma,
river, run over, sault, sightless eyes, sightlessness, slop, slosh,
snow blindness, soul-blindness, spate, spill, spill out,
spill over, spiritual blindness, spout, stone-blindness, stoop,
sty, submerge, swamp, sweep, swoop, torrent, total blindness,
trachoma, trend downward, unenlightenment, unseeingness, uveitis,
walleye, waterfall, waterflood, watershoot, whelm

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英文字典中文字典相關資料:
  • Cataracts - Symptoms and causes - Mayo Clinic
    As the cataract grows, the clouding becomes worse A cataract scatters and blocks the light as it passes through the lens This prevents a clearly defined image from reaching your retina As a result, your vision becomes blurred Cataracts usually happen in both eyes, but not always at the same rate The cataract in one eye may be worse than
  • Cataracts: Signs, Symptoms Treatment Options
    Cataract surgery is the only way to remove cataracts and restore your clear vision During cataract surgery, an ophthalmologist removes your clouded natural lens and replaces it with an intraocular lens (IOL)
  • What Are Cataracts? - American Academy of Ophthalmology
    A cataract is when your eye's natural lens becomes cloudy Proteins in your lens break down and cause things to look blurry, hazy or less colorful We are all born with a natural lens inside each of our eyes The lens bends (refracts) light rays that come into the eye to help us see
  • Cataracts Explained: Symptoms, Causes and Treatment Options
    Discover what cataracts are, why they develop, symptoms to watch for, and how modern cataract surgery can help you regain clearer vision
  • Cataract - Wikipedia
    Cataract A cataract is a cloudy area in the lens of the eye that impairs vision [1][7] Cataracts often develop slowly and can affect one or both eyes [1] Symptoms may include faded colours, blurry or double vision, halos around light, trouble with bright lights, and difficulty seeing at night [1]
  • Cataracts - National Eye Institute
    A cataract is a cloudy area in the lens of your eye More than half of all Americans age 80 and older either have had cataracts or have had surgery to get rid of cataracts Learn about the types, symptoms, and causes of cataracts and how your doctor will diagnose and treat them
  • Cataracts - Causes, Symptoms, Risk Factors, Diagnosis . . . - WebMD
    If your child’s cataract is small and doesn’t affect their vision, it may not need to be removed But if it does affect their eyesight, it should be treated as soon as possible
  • What Are Cataracts and How Can They Be Treated? - Vision Center
    Common cataract symptoms include gradual blurry vision, glare from lights, trouble seeing at night, and reduced color clarity Recognizing these symptoms early can help you manage your vision proactively
  • Cataracts | Cataract Surgery | MedlinePlus
    A cataract is a clouding of the lens in your eye It affects your vision Cataracts are very common in older people Learn about symptoms and surgery
  • Cataracts: Causes, Symptoms, and When to Get Cataract Surgery
    This type of cataract surgery is covered by most insurance providers Femtosecond laser-assisted cataract surgery (FLACS) is a newer technique (approved in 2011) which uses a femtosecond laser that is programmed to make incisions on the cornea, including incisions to help reduce low levels of astigmatism, and break up the original lens





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