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ocular

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ocular

ocular Sentence Examples

  • The black represents the cuticular product of the epidermal cells of the ocular area, taking the form either of))...,r,, f lens, cl, of crystalline body, cry, or of rhabdom, rhab; hy, hypodermis or epidermal cells; corn', laterallyplaced cells in the simpler stage, A, which like the nerve-end cells, vit' and ret', are corneagens or lens-producing; corn, specialized corneagen or lens-producing cells; vie, potential vitrella cells with cry', potential crystalline body now indistinguishable from retinula cells and rhabdomeres; vit, vitrella cell with cry, its contained cuticular product, the crystalline cone or body; ret', rhab', retinula cells and rhabdom of scorpion undifferentiated from adjacent cells, vit'; ret, retinula cell; rhab, rhabdom; nf, optic nerve-fibres.

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  • We shall, therefore, ignoring the ocular somite, speak of the first, second, third, fourth, fifth and sixth legbearing somites of the prosoma, and indicate the appendages by the Roman numerals, I, II, III, IV, V, VI, and whilst ignoring the praegenital somite we shall speak of the first, second, third, &c., somite of the mesosoma or opisthosoma (united mesosoma and metasoma) and indicate them by the Arabic numerals.

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  • Occasionally the ocular lobes are articulated.

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  • Apart from the possible existence of an ocular ep FIG.3.

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  • Spiritualists have, as a rule, sought to convince not by testimony but by ocular demonstration.

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  • a, Anterior ocular or orbital, or praeorbital or anteocular.

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  • Usually the sides of the carapace are strangely produced into a mock rostrum in front of the ocular lobe, be it oculiferous or not.

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  • But the protocerebrum contains the ganglia of the ocular segment in addition to those of the procephalic lobes.

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  • If a telescope be employed there is a distinction to be observed, according as the half-covered aperture is between the eye and the ocular, or in front of the object-glass.

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  • Again, in an ocular heliometer by Steinheil double image is similarly produced by a divided prism of total reflection placed in parallel rays.

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  • I, Ocular segment.

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  • Limulus thus agrees with Scorpio and differs from the Crustacea, in which there are three prosthomeres - one ocular and two carrying palpiform appendages.

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  • These will then remain as typically composed each of six appendage-bearing somites - the prosoma comprising in addition the ocular prosthomere.'

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  • One of these is the ocular segment, in front of the antennal, and behind the primitive preoral segment.

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  • o, Ocular tubercle.

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  • Here the articulation of the ocular segment is unusually distinct, and here two characters quite foreign to all the preceding groups come into view.

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  • He endeavoured to illustrate the subject by a clavecin oculaire, or ocular harpsichord; but the treatise and the illustration were quickly forgotten.

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  • By suitably replacing the ocular of the observing telescope in an angular vision spectroscope by a photographic camera, it is possible to photograph spectra; such instruments are termed spectrographs.

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  • The fourth ocular result of administering atropine is the production of a slight but definite degree of local anaesthesia of the eyeball.

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  • A somite placed between the prosoma and mesosoma - the prae-genital somite - appears to have belonged originally to the prosomatic series (which with its ocular prosthomere and palpi FIG.

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  • Again, no single point in the cortex evokes the act of ocular convergence and fixation.

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  • The drug is often replaced in ophthalmology by homatropine - an alkaloid prepared from tropine - which acts similarly to atropine but has the advantage of allowing the ocular changes to pass away in a much shorter time.

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  • An ocular segment claimed by the former division is not present or in no case demonstrable in the latter.

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  • During the paroxysms, or even preceding them, certain sensory disturbances may be experienced, more especially affections of vision, such as ocular spectra, hemiopia, diplopia, &c. Gout, eyestrain and intestinal toxaemia have been put forward as causes of migraine, and Sir W.

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  • The compound microscope generally consists of two positive lens systems, so arranged that the system nearer the object (termed the objective) projects a real enlarged image, which occupies the same place relatively to the second system (the eyepiece or ocular) as does the real object in the simple microscope.

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  • An image is therefore projected by the ocular from the real magnified image produced by the objective with increased magnification.

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  • THE Eyepiece Or Ocular The eyepiece is considerably simpler in its construction than the objective.

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  • A fine scale with known intervals is put on the stage plate, and by determining the distance between the graduations of the objective micrometer formed through the same objective, by means of the screw micrometer ocular, the magnification of the objective is determined.

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  • In the case of a suitable ocular magnification, the details will be well seen, while the aberration circles remain invisible.

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  • It seems that confusion and trouble will be best avoided by abstaining from the introduction of the non-evident somites, the ocular and the praegenital, into the numerical nomenclature of the component somites of the three great body regions.

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  • In the main, the various types of minute ocular structure correspond very closely to the different groups into which mammals are divided, this correspondence affording important testimony in the favour of the general correctness of the classification.

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  • From the leaning tower of Pisa he afforded to all the professors and students of the university ocular demonstration of the falsehood of the Peripatetic dictum that heavy bodies fall with velocities proportional to their weights, and with unanswerable logic demolished all the time-honoured maxims of the schools regarding the motion of projectiles, and elemental weight or levity.

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  • Abbe overcame this defect by using the so-called compensation ocular, made with Jena glasses.

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  • or " vertex," the compound eyes and the front divisions of the genae are formed by the cephalic lobes of the embryo (belonging membrane analogous to the amnion of higher Vertebrates andto the ocular segment), while the mandibular and maxillary segments known by the same term.

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  • But although in such lower Crustacea the nerve-ganglia of the third prosthomere have not fused with the anterior nerve-mass, there is no question as to the prae-oral position of two appendage-bearing somites in addition to the ocular prosthomere.

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  • o., Ocular.

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  • - Ray transmission in compound microscope with a positive ocular.

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  • - Screw Micrometer Ocular.

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  • As fractions of intervals can only be estimated in this method, a measurement with such an eyepiece scale can of course not be as exact as with a screw micrometer ocular.

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  • The magnification of a microscope is determined from the focal lengths of the two optical systems and the optical tube length, for N = 250 A/fi'f2 To determine the optical tube length 0, it is necessary to know the position of the focal planes of the objective and of the ocular.

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  • If the object can be seen by using the mirror, the plane mirror must be used; then the actual size of the object and of the image produced by the objective is measured (of the image by a micrometer ocular).

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  • Following our move to Devon we saw an ophthalmologist at Torbay hospital who said he thought Matthew had ocular albinism.

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  • Living with ocular albinism Our son, Sebastian, was born in November 1992.

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  • In suspected cranial arteritis 40 mg / or up to 80 mg/day if ocular symptoms.

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  • The ocular surface as part of the mucosal immune system: kinetics of immune cell traffic across basement membrane of the human conjunctiva.

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  • Ocular lesions are common, including mild conjunctivitis, burning and grittiness.

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  • elevated IOP, or ocular hypertension (OHT ), is a major risk factor for glaucoma.

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  • To ' seal ' this leak, a laser is used to burn a tiny area of the ocular fundus.

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  • Head mounted binocular indirect ophthalmoscopy Introduction Binocular indirect ophthalmoscopy (BIO) is a technique used to evaluate the entire ocular fundus.

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  • A dangerously elevated IOP, or ocular hypertension (OHT ), is a major risk factor for glaucoma.

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  • The ocular findings in albinism include nystagmus, decreased visual acuity; hypopigmentation of retinal tissue, and macular hypoplasia.

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  • There are several other clinical research projects ongoing at present eg suppurative keratitis, ocular trauma, effect of cataract surgery on diabetic retinopathy.

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  • Ocular adnexal injuries like lid lacerations occur rarely during episiotomy or with the surgical knife during delivery with cesarean section has been noted 5.

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  • lymph node involvement without ocular, cutaneous, or visceral problems.

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  • CONCLUSIONS: Secondary ocular manifestations of B-CLL occur relatively commonly during disease progression.

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  • ocular melanoma is a cancer tumor created by melanocytes cells in the eye.

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  • Microscope: Bausch & Lomb monocular, 10x ocular, 10x ocular, 4x, 10x and 40x objectives.

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  • ocular albinism Our son, Sebastian, was born in November 1992.

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  • ocular motility.

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  • ocular hypertension (OHT ), is a major risk factor for glaucoma.

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  • ocular trauma.

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  • ocular adnexal lymphomas are rare non-Hodgkin's B-cell lymphomas.

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  • The department is also a supra-regional center for ocular oncology principally for retinoblastoma affecting children and ocular melanoma in adults.

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  • Eyes turning opaque This sign of cat disease indicates a major ocular problem.

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  • optometry students with no ocular symptoms.

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  • You will be expected to examine your fellow students, so the chances of finding ocular pathology in such a young population is low.

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  • perforate study, only perforating ocular injuries were looked at rather than the whole spectrum of eye trauma cases.

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  • rectus muscles to create a new ocular surface.

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  • Ocular examination, anthropometric measurement and serum retinol analysis were carried out.

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  • Ocular effects can result from entry of seeds into the conjunctival sac of farmers at harvest-time (Simmons 1957 ).

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  • striated glasses, Ocular dominance, Sbisa bar, Sensory fusion.

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  • An epidemic of acquired systemic toxoplasmosis involving an unusually high number of cases of ocular disease occurred in 1995 in Canada.

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  • Thus the percentage of road traffic accidents causing ocular trauma is 12.5% .

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  • This is always available at the hospital where conditions such as recurrent uveitis, non-healing ulcers and ocular penetrating injuries are routinely seen.

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  • These include, besides ocular squint, many spatial positions and movements unwonted to the body: the looking from a height, the gliding over ice, sea-travel, to some persons even travelling by train, or the covering of one eye.

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  • The difference of chromatic magnification cannot even be overcome in apochromats, and to cancel this aberration Abbe devised the compensating ocular (fig.

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  • The most accurate calculations are obtained by using the screw micrometer ocular (fig.

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  • The buccal mucous membrane graft is sutured to the sclera bounded by the insertion of the rectus muscles to create a new ocular surface.

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  • Ocular effects can result from entry of seeds into the conjunctival sac of farmers at harvest-time (Simmons 1957).

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  • Key words: Bagolini striated glasses, Ocular dominance, Sbisa bar, Sensory fusion.

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  • Ocular toxoplasmosis associated with HIV infection is a particular challenge to the ophthalmologist.

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  • Thus the percentage of road traffic accidents causing ocular trauma is 12.5 %.

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  • Ocular Evaluation: Uncorrected visual acuities at distance were 20/40 OD, 20/40 0S, and 20/30 OU.

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  • Fortunately, cataracts can be removed and vision restored in the majority of patients if other significant ocular diseases do not exist.

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  • Single or binocular: There are different types of eyeglass magnifiers out there and chief among the decisions you might have to make is choosing between a single ocular or a binocular.

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  • Those in the jewelry business or anyone that needs to see a single piece of material up close may prefer to opt for the single ocular.

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  • The second most common type of the condition is known as ocular albinism, in which only the eyes lack color; skin and hair are normal.

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  • Some types of ocular albinism cause more problems, especially eye problems, than others.

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  • There is also a type of ocular albinism that is carried on the X chromosome and occurs almost exclusively in males because they have only one X chromosome and, therefore, no other gene for the trait to override the defective one.

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  • Corneal abrasions account for 10 percent of ocular emergency care.

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  • Usually the anesthetic drop will relieve the ocular pain immediately.

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  • "Corneal Abrasions, Lacerations, and Perforations" in Current Ocular Therapy, Vol. 5, edited by Frederick T.

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  • The HSV-1 virus can cause ocular herpes, a serious eye infection affecting the cornea (the clear window) of the eye, which can threaten vision and needs immediate medical attention and treatment.

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  • Ocular herpes can weaken vision and even cause blindness.

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  • K., et al. "Ocular manifestations of ataxia-telangiectasia."

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  • The infant will be tearing and have a purulent ocular discharge, and the eyelids will be swollen.

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  • There are many causes of eye problems, and appropriate treatment should be instituted as soon as possible if inclusion conjunctivitis is the cause of the ocular problem.

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  • A pediatrician, family doctor, ophthalmologist, or optometrist licensed to use diagnostic drugs uses drops that dilate the pupils and temporarily paralyze eye-focusing muscles to evaluate visual status and ocular health.

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  • It is often caused by an underlying ocular or neurological disorder.

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  • This is a congenital nystagmus caused by an ocular motor disturbance rather than visual deprivation.

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  • If oscillopsia is a co-existing symptom, then drugs can be given to reduce the ocular oscillations.

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  • Because nystagmus can be associated with many medical problems, the child with this condition must undergo a complete ocular and neurological evaluation.

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  • "Nystagmus." In Current Ocular Therapy 5.

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  • This decreased level, in turn, decreases the sensitivity of ocular tissue to another compound called retinoic acid, which prevents increases in the length of the eye.

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  • Also, problems with vision may be a sign of a more serious ocular problem, such as cataracts, or of a medical problem, such as diabetes.

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  • These tests include an evaluation of the child's binocular vision, his eye movements, his ability to converge and focus on objects close-up, and his ocular health.

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  • The rim of each eye piece is cushioned by a foam, rubber or silicone gasket that allows the lens to be held comfortably but snugly against the ocular bones to form a water-tight seal.

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  • D. Select series with supplements from Dr. Ronald Hoffman aimed at specific ailments and areas that could use extra support, such as ocular (eye) health and mental sharpness.

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  • In the end, Ben and his team discover clues on the Declaration of Independence itself, an ocular device, a $100 bill and more.

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  • Ocular rosacea affects the eyes and is often accompanied by one of the other types of rosacea.

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