(n.) The transparent part of the coat of the eyeball which covers the iris and pupil and admits light to the interior. See Eye.
Example Sentences:
(1) Displacement of the surface of the cornea of bovine eyes after disruption of intact structures was investigated by means of holographic interferometry.
(2) The patient, a 12 year-old boy, showed a soft white yellowish mycotic excrescence with clear borders which had followed the introduction of a small piece of straw into the cornea.
(3) Increased amounts of laminin in the basal epithelium of the cornea and of collagen type III in the stroma and subepithelial components of the stroma were observed.
(4) We report on a membrane inflation method of wound spreading in intact human corneas using the Baribeau Micronscope.
(5) When 5 corneas with quiescent HSK were cultured in vitro, 3 again became HSV antigen positive.
(6) Corneas of bullfrog (Rana catesbeiana) were mounted between lucite chambers.
(7) The eye is of the closed vesicle type and is composed of retina, cornea, vitreous body, lens and optic nerve.
(8) The steps in the model are the drug elimination rate in the precornea and anterior chamber, the rate of drug dissolution, the rate of drug penetration into the cornea, and the rate of drug transport into the aqueous humor.
(9) Gas trapping and corneal edema were not observed in uncovered corneas or corneas covered with membrane lenses.
(10) Since lymphocytic cells in intimate contact with degenerating keratocytes have previously been identified in the cornea, these observations provide a basis for the view that cell-mediated immunopathogenesis is involved in the etiology of herpetic stromal keratitis.
(11) Lactate dehydrogenase (LDH) levels and subunit isozyme patterns in cornea were monitored in 36 albino rabbits wearing thick, rigid, gas-permeable contact lenses for periods of 24 h, 2 and 7 days, and 1 and 3 months.
(12) Calculations of energies of activation, taken from Arrhenius plots, indicate that the diffusion of drug across the cornea may be by two different mechanisms that depend on the physical-chemical characteristics of the perfusant.
(13) The mean in the newborn-to-6-month-old group was 47.59 D; in the 12-18-month-old group it had decreased to 45.56 D. The cornea appears to stabilize at about 54 months, with an average reading of 42.69 D. Evaluation of 11 eyes diagnosed as having persistent hyperplastic primary vitreous revealed that eyes with this diagnosis generally have steeper corneas than normal eyes at any given age.
(14) There was no significant difference in the wound-healing rate, but at 36 hours there was a reduction in wound-healing rate of the excimer ablated corneas.
(15) More importantly, this study reports the first detection of LAT in RNA extracted from 9% of corneas from latently infected rabbits (n = 22) by the polymerase chain reaction.
(16) Cat corneas were stored at refrigerator temperatures in M-K medium (TC-199, 5% dextran), modified M-K medium (TC-199, 1% chondroitin sulfate), or on the intact globe in moist chambers for intervals of one to nine days.
(17) Pterygia, triangular sheets of fibrovascular tissue that invade the cornea, have recurrence rates of 30% to 50% with currently available surgical procedures.
(18) Rabbit corneas grown in organ culture (24 well plate) were inoculated topically with 50 microliters (5 x 10(5) pfu) of different ocular adenoviral serotypes (ATCC and clinical isolates).
(19) A recipient cornea gradually developed wrinkling and opacification in Bowman's layer following an uneventful myopic epikeratoplasty.
(20) In neurological diseases the hyposensitivity could include the cornea, conjunctiva and lid margin.
Pupil
Definition:
(n.) The aperture in the iris; the sight, apple, or black of the eye. See the Note under Eye, and Iris.
(n.) A youth or scholar of either sex under the care of an instructor or tutor.
(n.) A person under a guardian; a ward.
(n.) A boy or a girl under the age of puberty, that is, under fourteen if a male, and under twelve if a female.
Example Sentences:
(1) A 66-year-old woman with acute idiopathic polyneuritis (Landry-Guillain-Barré [LGB] syndrome) had normal extraocular movements, but her pupils did not react to light or accommodation.
(2) Results in May 89 emphasizes: the relevance and urgency of the prevention of AIDS in secondary schools; the importance of the institutional aspect for the continuity of the project; the involvement of the pupils and the trainers for the processus; the feasibility of an intervention using only local resources.
(3) We’ve spoken to them on the phone and they’ve all said they just want to come home.” A total of 93 pupils from Saint-Joseph were on the trip.
(4) Pupils who disrupt the learning of their classmates are dealt with firmly and, in many cases, a short suspension is an effective way of nipping bad behaviour in the bud."
(5) The headteacher of the school featured in the reality television series Educating Essex has described using his own money to buy a winter coat for a boy whose parents could not afford one, in a symptom of an escalating economic crisis that has seen the number of pupils in the area taking home food parcels triple in a year.
(6) The pupils at the Royal Blind School, Edinburgh, were surveyed and it was found that 40% of the 100 pupils had definitely inherited severe eye disease.
(7) The teacher said his school believed it was aware of all the pupils who had been present, and that Nuttall was not among them.
(8) While tonic pupil and reduced sweating can be attributed to the affection of postganglionic cholinergic parasympathetic and sympathetic fibres projecting to the iris and sweat glands, respectively, the pathogenesis of diminished or lost tendon jerks remains obscure.
(9) For data sampled at a high rate (approximately 200 Hz) pupil velocity deviations from zero can simply be used, giving a satisfactory inaccuracy of about 5 ms. For data sampled at a low rate (less than 50 Hz), e.g.
(10) On neurological examination, he showed stupor,pupils and eye position were normal.
(11) A nine-year-old Scottish girl who attracted two million readers to a blog documenting her school lunches , consisting of unappealing and unhealthy dishes served up to pupils, has been forced to end the project after the council banned her from taking pictures of the food in school.
(12) Posterior synechiae, pupil deformations, grave uveitis with hypotonia of 4-10 mm Hg are rapidly developing.
(13) Effects of topical administration of a single dose of 2% pilocarpine on intraocular pressure (IOP) and pupil diameter were evaluated in normotensive eyes of 10 clinically normal cats over 12 hours.
(14) Changes in pupil size indicated a substantial cholinergic effect on the iridal sphincter musculature.
(15) The nineteen pupils so discovered had more exercise-induced bronchial lability than equivalently exercised controls.
(16) Theory and practice of urology generates three types of professionals: doctors, who study at universities and obtain their licence by making a demonstration before the Protomedicato Tribunal; surgeons, who acquire their surgical techniques through a teacher-pupil training relationship outside universities; and empirics, who were in charge of performing surgical operations.
(17) The evolution and characteristics of diabetic rubeosis were studied in 33 eyes, and the following vascular abnormalities were found: (1) Dilated leaking capillaries around the pupil; (2) irregular or slow filling of the radial arteries; (3) superficial arborising newly formed vessels, usually starting in the chamber angle; and (4) dilatation and leakage of the radial vessels either before or after the development of neovascular glaucoma.
(18) Characteristic clinical features were present in 19 patients, including a gradual obtundation after the initial hemorrhage in 16 patients and small nonreactive pupils in nine patients (all with a Glasgow Coma Scale score of 7 or less).
(19) Ed Miliband's education package is less generous than some hoped Read more The Labour leader said the coalition is directly to blame for a trebling in the number of classes with more than 30 pupils from 31,265 in 2010 to 93,345 in 2014, as a result of opening free schools in areas where new schools are not needed.
(20) Of these, 61.2% said they had been subjected to a pupil writing an insulting comment about them on a social network or internet site, 38.1% said a student had made comments about their competence or performance as a teacher, and 9.1% said they had faced allegations that they behaved inappropriately with pupils.