(n.) A lens of glass to assist the sight. Eyeglasses are used singly or in pairs.
(n.) Eyepiece of a telescope, microscope, etc.
(n.) The retina.
(n.) A glass eyecup. See Eyecup.
Example Sentences:
(1) Optimal radiation protection of the eyes during fluoroscopy depends not only on eyeglasses with leaded glass, but also on shielding of sufficient size and shape to reduce exposure to the surrounding head.
(2) This paper discusses methods for improving vision in the dental operatory and details a new design for eyeglasses suitable for the presbyopic dentist.
(3) Numerous eyeglass lens materials have been recommended for protection of radiologists' eyes from the cataractogenic effect of radiation during fluoroscopic procedures.
(4) Patient assessment of dental prostheses, hearing aids, and eyeglasses can provide valuable data regarding adaptability of geriatric patients.
(5) To aid the partially sighted in writing on small areas, such as bank drafts, a clip-on eyeglass loupe (11 diopters, 3.5 inches, Bausch and Lomb) attached to a finepoint felt pen provides adequate vision.
(6) These lesions, located along the retroauricular fold and on the nasal bridge, are caused by ill-fitting eyeglasses.
(7) A model of ocular and facial skin exposure to UVB is presented that combines interview histories of work activities, leisure activities, eyeglass wearing, and hat use with field and laboratory measurements of UV radiant exposure.
(8) An improved gauge using an eyeglass frame, the TOM gauge, was devised.
(9) Vision acuity of 0.05-0.3 diopters (with eyeglass correction) was achieved in 74.1 percent of cases, that of 0.1-0.3 diopters in 29.9 percent.
(10) These forms, along with the striking "eyeglass" configuration of incompletely separated cells that were also present, are the diagnostic features of this apparently rare variety.
(11) Conrad von Soest depicted an apostle in reading glasses in the Niederwildungen Altarpiece in 1403, and there are mentions of the use of eyeglasses dating back to antiquity.
(12) Appropriate eyeglasses may be matched with the curing unit used.
(13) My prescription eyeglasses were taken away from me and I was forced to sit in essential blindness."
(14) A 12-yr-old anisometropic patient had worn corrective eyeglasses (right eye, -0.50 +1.50 x 125; LE, -9.75 +2.50 x 60) for 7 yr, and then changed to contact lenses.
(15) Since eyewear may have a photoprotective effect, this study evaluated the use of prescription eyeglasses and sunglasses in patients with periorbital basal cell carcinoma compared with other facial sites.
(16) Reported herein are two different mathematical procedures for simulating transfer functions of the feedback path of an eyeglass-type hearing aid.
(17) As a consequence, incidence rates for blindness are higher for the black population than the white population.Statistics show that black children requiring eyeglasses are less likely to receive eyeglasses than similar age-matched white children.
(18) Before eyeglass wear best corrected acuity was reduced for both eyes with the left eye acuity significantly lower than the right.
(19) After surgery on the proximal nose, wearing eyeglasses can be difficult and uncomfortable.
(20) It is concluded that eyeglasses did not serve as an efficient discriminating feature in recognition memory, and it is recommended that positive eyewitness identification of people wearing spectacles be treated with particular caution.
Lens
Definition:
(n.) A piece of glass, or other transparent substance, ground with two opposite regular surfaces, either both curved, or one curved and the other plane, and commonly used, either singly or combined, in optical instruments, for changing the direction of rays of light, and thus magnifying objects, or otherwise modifying vision. In practice, the curved surfaces are usually spherical, though rarely cylindrical, or of some other figure.
Example Sentences:
(1) These results demonstrate that increased availability of galactose, a high-affinity substrate for the enzyme, leads to increased aldose reductase messenger RNA, which suggests a role for aldose reductase in sugar metabolism in the lens.
(2) Based on several previous studies, which demonstrated that sorbitol accumulation in human red blood cells (RBCs) was a function of ambient glucose concentrations, either in vitro or in vivo, our investigations were conducted to determine if RBC sorbitol accumulation would correlate with sorbitol accumulation in lens and nerve tissue of diabetic rats; the effect of sorbinil in reducing sorbitol levels in lens and nerve tissue of diabetic rats would be reflected by changes in RBC sorbitol; and sorbinil would reduce RBC sorbitol in diabetic man.
(3) The significance of the differences in these two patterns of actin is discussed in terms of differences in the accommodative ability and static lens shape in these two animals.
(4) The epithelium of Brunner's gland stained intensely with Ricinus communis agglutinin-I (RCA-I), succinylated-WGA (S-WGA) and wheat-germ agglutinin (WGA), moderately with Bandeirea simplicifolia agglutinin-I (BS-I), Concanavalia ensiformis agglutinin (Con A) peanut agglutinin (PNA) and Ulex europaeus agglutinin-I (UEA-I) and occasionally with Dolichos biflorus agglutinin (DBA), Lens culinaris agglutinin (LCA) and soybean agglutinin (SBA).
(5) That is, he believes, to look at massively difficult, interlocking problems through too narrow a lens.
(6) The advantages of the incision through the pars plana ciliaris are (1) easier approach to the vitreous cavity, (2) preservation of the crystalline lens and an intact iris, and (3) circumvention of the corneal and chamber angle complications sometimes associated with the transcorneal approach.
(7) The third patient was using an extended-wear soft contact lens for correction of residual myopia.
(8) The cellularity depends on the type of the lens and the material of the lens and on the clinical picture of the disease.
(9) Although lens haemagglutinins were detected in 6 out of 7 rabbits, in only 3 of the 6 animals did the titre reach a maximum of 1:640.
(10) Dioptric aniseikonia was calculated between 1 month and 24 months after surgery (with Gruber's and Huber's computer program) on the basis of most recently obtained values (bulb axis length, depth of the anterior chamber, lens thickness, necessary refraction), and compared with subjective measurements taken with the phase difference haploscope.
(11) We propose that a channel with these properties could contribute to maintenance of lens transparency and fluid balance.
(12) Although the lens did not alter stereopsis, it did produce severe color discrimination losses for normal and dichromatic subjects.
(13) The general efficacy of this intraocular lens compared with other anterior chamber lenses was not addressed in this study.
(14) However, the monkey lens low molecular weight proteins differ from the human low molecular weight proteins in charge as well as molecular weight determined by SDS-PAGE.
(15) Fifty-five myopic naval personnel with no previous contact lens experience were put through a three-week study using these contact lenses.
(16) A Stryker turning frame was used during surgical removal of a posterior displaced lens.
(17) The biocompatibility and fixation of a new silicone intraocular lens was evaluated in the cat eye.
(18) Both organisms have previously been found to be sequestered in the posterior lens capsule by histological and microbiological examination of excised capsular specimens.
(19) Previous experiments had demonstrated that the receptors for the lectins soybean agglutinin (SBA), wheat germ agglutinin, concanavalin A and Lens culinaris agglutinin all were relatively uniformly distributed on both myoblasts and myotubes, and that SBA receptors were capable of rapid redistribution on myotubes but not myoblasts at 4 degrees C (Sawyer & Akeson, 1983).
(20) The relative permittivity and conductivity of rabbit eye lens were measured in the frequency domain between 2 and 18 GHz at temperatures of 37 and 20 degrees C. An analysis of the data suggested that a significant proportion of the bulk water in nuclear and cortical lens tissue may behave differently to pure water.