cataract

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Related to senile cataract: immature cataract, presenile cataract

cat·a·ract

 (kăt′ə-răkt′)
n.
1. A large or high waterfall.
2. A great downpour; a deluge.
3. Medicine Opacity of the lens or capsule of the eye, causing impairment of vision or blindness.

[Middle English cataracte, from Old French, from Latin cataracta, from Greek katarraktēs, kataraktēs, downrush, waterfall, portcullis, probably from katarassein, to dash down (kat-, kata-, cata- + arassein, to strike). Sense 3, from a comparison to a portcullis or other falling impediment or covering.]

cat′a·rac′tous (-răk′təs) adj.

cataract

(ˈkætəˌrækt)
n
1. (Physical Geography) a large waterfall or rapids
2. a deluge; downpour
3. (Pathology) pathol
a. partial or total opacity of the crystalline lens of the eye
b. the opaque area
[C15: from Latin catarracta, from Greek katarrhaktēs, from katarassein to dash down, from arassein to strike]

cat•a•ract

(ˈkæt əˌrækt)

n.
1. a descent of water over a steep surface; a waterfall, esp. one of considerable size.
2. any furious rush or downpour of water; deluge.
3.
a. an abnormality of the eye characterized by opacity of the lens.
b. the opaque area.
[1350–1400; Middle English < Latin catar(r)acta waterfall, portcullis < Greek katarráktēs, akin to katarássein to dash down]
cat`a•rac′tal, cat`a•rac′tous, adj.

cat·a·ract

(kăt′ə-răkt′)
1. A cloudiness in the lens of an eye or the membrane that covers it, causing partial or total blindness.
2. A large, steep waterfall.

Cataract

 a violent downpour or rush; anything likened to a waterfall. See also cascade.
Examples: cataract of nastiness; of evil news, 1864; of panegyrics; of water.

cataract

An opaque area that forms within the lens of the eye.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cataract - an eye disease that involves the clouding or opacification of the natural lens of the eye
eye disease - any disease of the eye
cortical cataract - a cataract that affects the lens cortex
nuclear cataract - a cataract that affects the nucleus of the lens
posterior subcapsular cataract - a cataract in the rear of the lens capsule
2.cataract - a large waterfall; violent rush of water over a precipice
waterfall, falls - a steep descent of the water of a river

cataract

noun
1. (Medical) opacity (of the eye) a battle with blindness caused by cataracts
2. waterfall, falls, rapids, cascade, torrent, deluge, downpour, Niagara There was an impressive cataract at the end of the glen.

cataract

noun
An abundant, usually overwhelming flow or fall, as of a river or rain:
Chiefly British: spate.
Translations
šedý zákalvodopád
grå stærkataraktstær
vesiputousharmaakaihikaihi
mrenaslap
hályog
vagl
大きな滝白内障
백내장큰 폭포
katarakta
katarakta
šedý zákal
forsgråstarr
ต้อน้ำตกที่สูงชัน
màng thủy tinh thểthác nước lớn

cataract

[ˈkætərækt] N
1. (= waterfall) → catarata f
2. (Med) → catarata f

cataract

[ˈkætərækt] n
(MEDICINE)cataracte f
(= waterfall) → cataracte f

cataract

n
(= rapids)Katarakt m
(Med) → grauer Star

cataract

[ˈkætəˌrækt] n (Geog, Med) → cateratta

cataract

(ˈkӕtərӕkt) noun
a clouding of the lens of the eye causing difficulty in seeing.

cataract

إِعْتَامُ عَدَسَةِ العَيْـن, شَلّاَل šedý zákal, vodopád grå stær, katarakt grauer Star, Wasserfall καταρράκτης catarata harmaakaihi, vesiputous cataracte mrena, slap cataratta, cateratta 大きな滝, 白内障 백내장, 큰 폭포 cataract, waterval foss, grå stær wodospad, zaćma catarata большой водопад, катаракта fors, gråstarr ต้อ, น้ำตกที่สูงชัน çağlayan, katarakt màng thủy tinh thể, thác nước lớn 大瀑布, 白内障

cat·a·ract

n. catarata, opacidad del cristalino;
anular ______ anular;
black ______ negra;
blue ______ cerúlea;
complete ______ completa;
congenital ______ congénita;
green ______ verde;
mature ______ madura;
senile ______ senil;
soft ______ blanda.

cataract

n catarata
References in periodicals archive ?
It is an observational comparative prospective study on 100 eyes of 100 patients aged 50 years or above with senile cataract who underwent manual small incision cataract surgery (SICS) with Intra-ocular lens (IOL) implantation.
Phacoemulsification under local anesthesia is the surgical method currently used to treat most cases of senile cataract.
Processes underlying the most common forms of cataracts, senile cataract and diabetic cataract, require further research as the causes can be multifactorial.
Patient No-1 (father): OD=Lens extraction, OS=lens extraction due to senile cataract.
The age variation of senile cataract in various parts of the world.
Selenium concentrations in serum, lens and aqueous humour of patients with senile cataract.
The development of senile cataract, especially nuclear cataract, is associated with progressive oxidative changes in the intrinsic membrane fraction and membrane-related components of the lens, which eventually extends beyond them to also involve the soluble components of lens proteins.
Amount of care differed widely among the various medical conditions, with nearly 79% of senile cataract sufferers receiving recommended treatments, but less than 11% of patients diagnosed with alcohol dependence receiving treatment.
The most common form is senile cataract, often the result of oxidative damage caused by free radicals.