sclerotic


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Related to sclerotic: sclerosis, Scleroderma, multiple sclerosis, bone island

scle·rot·ic

(sklē-rot'ik),
1. Relating to or characterized by sclerosis.
2. Synonym(s): scleral

sclerotic

/scle·rot·ic/ (sklĕ-rot´ik)
1. hard or hardening; affected with sclerosis.
2. scleral.

sclerotic

(sklə-rŏt′ĭk)
adj.
1. Affected or marked by sclerosis.
2. Anatomy Of or relating to the sclera.
n.
See sclera.

sclerotic

[sklirot′ik]
Etymology: Gk, skleros, hard
pertaining to induration or hardening.

scle·rot·ic

(sklĕr-ot'ik)
1. Relating to or characterized by sclerosis.
2. Synonym(s): scleral.

sclerotic

1. The white outer coat (sclera) of the eye.
2. Pertaining to the SCLERA.

sclerotic

see SCLERA.

sclera 

The tough, white, opaque, fibrous outer tunic of the eyeball covering most of its surface (the cornea contributes 7% of, and completes, the outer tunic). Its anterior portion is visible and constitutes the 'white' of the eye. In childhood (or in pathological conditions) when the sclera is thin, it appears bluish, while in old age it may become yellowish, due to a deposition of fat. The sclera is thickest posteriorly (about 1 mm) and gradually becomes thinner towards the front of the eyeball. It is a sieve-like membrane at the lamina cribrosa. The sclera is pierced by three sets of apertures: (1) the posterior apertures round the optic nerve and through which pass the long and short posterior ciliary vessels and nerves; (2) the middle apertures, 4 mm behind the equator which give exit to the vortex veins; and (3) the anterior apertures through which pass the anterior ciliary vessels. The tendons of insertion of the extraocular muscles run into the sclera as parallel fibres and then spread out in a fan-shaped manner. The sclera is commonly considered to be divided into three layers from without inward: (1) the episclera, (2) the scleral stroma and (3) the suprachoroid (lamina fusca) which is interposed between choroid and sclera. Syn. sclerotic. Note: some authors consider the suprachoroid as belonging to the choroid. However, when choroid and sclera are separated part of the suprachoroid adheres to the choroid and part to the sclera. See cribriform plate; evisceration.
blue sclera A hereditary defect in which the sclera has a bluish appearance. The sclera is thinner than normal and is susceptible to rupture if the person engages in contact sports. It is often associated with fragility of the bones and deafness as part of a condition called osteogenesis imperfecta (fragilitas ossium, van der Hoeve's syndrome), with keratoconus or with acquired scleral thinning (e. g. necrotizing scleritis). Syn. blue sclerotic (Fig. S3). See Ehlers-Danlos syndrome; Marfan's syndrome.
Fig. S3 Blue scleraenlarge picture
Fig. S3 Blue sclera
References in periodicals archive ?
Considering patient age, location, and clinical presentation, differential diagnostic considerations for a sclerotic bone lesion may include indolent infection/chronic osteomyelitis, prior trauma or stress reaction, osteoblastic metastatic disease, and osseous lymphoma.
It is surrounded by a poorly preserved thin sclerotic ring with a maximal width of 2 mm in its mesial part.
1,2) Sclerotic osteomas are represented by growth of individual bony trabeculae at the expense of tissue spaces.
On radiographs they are well circumscribed, radiolucent, typically subchondral in location and with a sclerotic rim.
The last two centuries of veneration have perhaps clouded our appreciation of the shock value of some of Bach's inspiration, most particularly his joyous use of dance rhythms, whose performance in larger-scale productions has become sclerotic.
At a moment's notice, they are expected to reinvent themselves--from the oppressed political have-nots of a sclerotic and indifferent regime to the leaders of a new political world.
President Ben Ali is aging, his regime is sclerotic
1,2,3) Although providing the number or percentage of globally and segmentally sclerotic glomeruli in a renal biopsy specimen is routine practice, (4) in many instances, the percentage of sclerotic glomeruli does not reflect renal function well.
is not being thrown after bad in driving the Irish further into the sclerotic
The New York Times' story on its website, headlined ''Japan's ruling party suffers setback,'' said that the election showed ''growing voter disappointment with the party's apparent inability to deliver on promises to revamp the country's sclerotic postwar order.