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cataract    音标拼音: [k'ætɚækts]
n. 大瀑布,奔流,洪水,白内障

大瀑布,奔流,洪水,白内障

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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  • Cataracts - Symptoms and causes - Mayo Clinic
    A cataract is a clouding of the lens of the eye, which is typically clear For people who have cataracts, seeing through cloudy lenses is like looking through a frosty or fogged-up window
  • Cataract - Wikipedia
    Cataract formation is primarily driven by oxidative stress, which damages lens proteins, leading to their aggregation and the accumulation of clumps of protein or yellow-brown pigment in the lens This reduces the transmission of light to the retina at the back of the eye, impairing vision
  • 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)
  • 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? - American Academy of Ophthalmology
    Using the slit lamp, an ophthalmoscope or both, the doctor looks for signs of cataract Your ophthalmologist will also look for glaucoma, and examine the retina and optic nerve
  • Types of Cataracts, Their Causes, Risk Factors, and Treatment
    There are five primary types of cataracts Age-related cataracts are the most prevalent, with subtypes like cortical, nuclear, and posterior subcapsular cataracts affecting different parts of
  • 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
    Cataracts are a painless, cloudy area in the lens of the eye that blocks the passage of light to the retina As a result, people experience vision changes, including blurry vision or issues seeing at night
  • Causes of Cataracts - National Eye Institute
    A cataract is a cloudy area in the lens of your eye Cataracts can make your vision blurry, hazy, or less colorful Most cataracts are caused by natural changes in your eyes as you get older Learn about how cataracts form and what causes them
  • 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 That’s why regular comprehensive eye exams are essential





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