(1) We have reported the development of 1.6 diopters of myopia in a group of patients exposed to reptitive oxygen breathing at two atmospheres absolute pressure.
(2) The change in refractive astigmatism was as high as 1.50DC (diopter cylinder).
(3) The averaged anesthetized alignment pertained to the whole group of 6.2 prism diopters of esotropia, which correlated poorly with the preoperative deviation.
(4) Astigmatism greater than +1.25 diopters (as high as +5.50 diopters) was most commonly associated with dacryoceles (eight of 12 eyes) and with hemangiomas (14 of 17 eyes).
(5) An average of 8.20 diopters (standard deviation SD = 2.40 D) of flattening was obtained in 20 human donor eyes.
(6) Hyperphoria of over 1 prism diopter was extremely rare.
(7) To determine the effect of optically induced blur on the visual field measured with high pass spatially filtered targets, 10 normal subjects had field examinations with 0 diopter + 1.00 diopter or + 2.00 diopter of overcorrection in the cyclopleged state.
(8) Of the adult aphakic cases, 80% were within 3 diopters of emmetropia at six months, with four cases showing an undercorrection.
(9) By appropriate multivariate statistical analyses, about 95 per cent of the variance in results of surgery (expressed as change in deviation from preoperative to the postoperative time in prism diopters per millimeter of surgical correction) could be accounted for.
(10) Our patient's corneal curvature steepened almost 3 diopters following lenticule removal.
(11) A new laser iridotomy-sphincterotomy contact lens, bearing a 103-diopter optical button decentered 2.5 mm, gives the smallest iris focal spot and highest iris energy density practicably obtainable with a single optical glass refracting surface placed upon a thin Goldmann-type contact lens.
(12) After all sutures were removed, results showed an average decrease in myopia of 13.24 diopters (D) (range 1.75 to 23.25) principally from corneal flattening and a small reduction in axial length.
(13) With three observers, we compared the accuracy and reproducibility (precision) of the Marco Keratometer Model 1 and EyeSys Corneal Analysis System Model I using four poly(methyl methacrylate) spheres (37.50, 42.51, 47.54, and 55.06 diopters [D]), three steel spheres (40.50, 42.50, and 44.75 D), and 20 normal human eyes (41.50 to 46.00 D).
(14) To compare the effects of these two strategies, eight rabbits underwent bilateral 5.00-diopter myopic ablations, performed with a contracting diaphragm in one eye and an expanding diaphragm in the other.
(15) Surgically induced astigmatism, as absolute change in cylinder (without regard to axis) at three months postoperatively averaged 0.46 diopter (D) for the 4.0 mm incision group, 0.57 D for the 5.2 mm incision group, and 0.52 D for the 7.0 mm incision group.
(16) The range of preoperative myopia was - 1.50 diopters to - 17.50 D (spherical equivalent).
(17) Thirty-eight percent had more than 5 diopters (D) of astigmatism in the graft.
(18) Of the patients who underwent unilateral superior rectus recession, only six developed a significant (14 prism diopters or more) DVD in the unoperated eye.
(19) Postoperative astigmatism ranged between 0 and 4 diopters, with an average of 1.7 diopters.
(20) At one day after surgery, the larger incision group had significantly higher (P less than .01) mean keratometric cylinder (2.28 diopters vs 1.28 diopters in the small incision group).
Speculum
Definition:
(pl. ) of Speculum
(n.) A mirror, or looking-glass; especially, a metal mirror, as in Greek and Roman archaeology.
(n.) A reflector of polished metal, especially one used in reflecting telescopes. See Speculum metal, below.
(n.) An instrument for dilating certain passages of the body, and throwing light within them, thus facilitating examination or surgical operations.
(n.) A bright and lustrous patch of color found on the wings of ducks and some other birds. It is usually situated on the distal portions of the secondary quills, and is much more brilliant in the adult male than in the female.
Example Sentences:
(1) Nasal endoscopy can find nasal and sinus pathology that might easily be missed with routine speculum and nasopharyngeal examination.
(2) The Gruber aural speculum, gave a completely, uninterrupted view of the choana.
(3) Investigation of secondary infertility in a woman with a history of second-trimester spontaneous abortion revealed two cervices on a speculum examination.
(4) To determine the usefulness of the Gram stain as a screening technique for maternal colonization with group B beta-streptococcus, we produced a Gram stain from a cervicovaginal swab taken at the time of sterile speculum examination in patients being evaluated for preterm rupture of membranes or preterm labor.
(5) A conductive sponge electrode inserted through the speculum served as the active TM electrode.
(6) Fraenkel's speculum (1872) combines fenestrated blades with a screw-set for self-retaining.
(7) Standard nasal speculums are readily available in most operating rooms and can also be used to protect skin and soft tissues during pin insertion.
(8) We have designed a self-retaining iris speculum for use in open-sky vitrectomy.
(9) Neither lid speculum nor physical restraint in the form of a papoose board was used.
(10) The aims of the study were to find the prevalence of cervical Chlamydia trachomatis infection in women attending for a speculum examination, to examine possible risk factors, and to see if we could develop a rational policy for testing for chlamydia in our deprived inner London practice.
(11) The results showed that it is possible to identify reliably the well-designed trouble-free cavity by the features of its skin lining and the ability to visualize the entire cavity through a size 4 Siegle speculum.
(12) A gauge mounted on the front end of the speculum is calibrated to measure the size of the opening at the tip of the speculum.
(13) Rexy had managed to get lodged so when looking toward the cervix using a speculum you could just see his head and front claws above this anatomical parapet.
(14) The rubber-foam tampons, cylindrical in shape (diameter 70 mm, height 70-90 mm), were introduced into the cranial part of the vagina, using an applicator and a vaginal speculum.
(15) The system comprises an attachment to the speculum, a self-retaining retractor, and a slim tapered brain spatula and pronged hook.
(16) This was achieved using humidified air at 38 degrees C at the wider end of the aural speculum.
(17) The simplest method of dealing with a frigore facial paralysis surgically seems to be by a minima neurolysis using a speculum and tackling it through the ear-drum as in otiospongiosis.
(18) The use of titanium alloys is recommended for making bone-joining members, retracting medical instruments, of the spatula and speculum types, some kinds of non-magnetic pincers and ultrasonic medical instruments.
(19) (4) "Blind" intubation through the nose renders the method possible in cases where it is impossible to use a speculum.
(20) Contraction of the orbicularis oculi muscle against the rigid speculum may have traumatized the lid, resulting in a levator aponeurosis disinsertion and subsequent ptosis.