(n.) Sharpness or acuteness, as of a needle, wit, etc.
Example Sentences:
(1) The high incidence of infant astigmatism has implications for critical periods in human visual development and for infant acuity.
(2) We have now started a prospective follow-up study in order to pursue the development of (a) p-ERG amplitudes and (b) funduscopic changes and visual acuity in these patients.
(3) At this threshold there was no effect on reducing the rate of visual acuity overreferrals, but ten children with abnormal binocular vision were detected who were not referred by visual acuity criteria.
(4) Degraded visual acuity had a significant effect on cadence, foot placement, and foot clearance, but visual surround conditions did not.
(5) On the initial visit, the best corrected acuity with spectacles was determined and a potential acuity meter reading was obtained; this test suggested potential for visual recovery in two of the three patients.
(6) Visual acuity was improved in 77%, was worse in 13%, and unchanged in 10% of eyes.
(7) The contra-indications for them are: 1. a better visual acuity with spectacles than with contact lenses, 2. advanced cases (4th degree of Amsler) whose fitting is impossible, 3. unilateral keratoconus, 4. associated diseases such as trachomatous pannus, allergic kerato-conjunctivitis.
(8) Near acuity with distance correction was J2 or more in 93.1% of the bifocals and in 17.4% of the monofocals (without correction: 79.3% and 41.4%, respectively).
(9) A visual acuity of 0.05 or better was achieved in 36% of the eyes treated with silicone oil versus 67% of the eyes treated with gas tamponade.
(10) No complications occurred, and visual acuity was good.
(11) Myopia ranged from -1.0 D to -9.0 D. Forty-two eyes (53%) achieved uncorrected visual acuity (VA) of 1.0 or better and 73 eyes (92%) better than 0.5.
(12) In remote terms (after four months) further improvement of visual functions was recorded, visual acuity increased by 0.3-0.6 in 8 of 15 patients.
(13) We examined 84 eyes with different lens opacities, the visual acuity was analysed in relation to the axial, cortical and capsular cataract.
(14) If there is any advantage to a particular strategy for selecting the distance monovision eye, it must be realized in vision performance areas other than visual acuity.
(15) 9 of the injured eyes had a reduction of visual acuity to 0.5 or less as a consequence of lens or central fundus changings.
(16) Our experiments try to verify the possibility of assessing visual acuity in children under Ethrane anesthesia.
(17) The final visual acuity was 0.4 or better in 83.3% of the eyes with transient CME.
(18) Postoperatively, visual acuity was improved and symptoms of erosion decreased in both patients.
(19) Acuity for the direction of drift for these stimuli is of the same order of precision as orientation acuity for static or drifting gratings, and exhibits a meridional anisotropy that favours the principal meridians.
(20) The CNVMs were treated in four patients; final visual acuity was poor in all eight patients.
Needle
Definition:
(n.) A small instrument of steel, sharply pointed at one end, with an eye to receive a thread, -- used in sewing.
(n.) See Magnetic needle, under Magnetic.
(n.) A slender rod or wire used in knitting; a knitting needle; also, a hooked instrument which carries the thread or twine, and by means of which knots or loops are formed in the process of netting, knitting, or crocheting.
(n.) One of the needle-shaped secondary leaves of pine trees. See Pinus.
(n.) Any slender, pointed object, like a needle, as a pointed crystal, a sharp pinnacle of rock, an obelisk, etc.
(v. t.) To form in the shape of a needle; as, to needle crystals.
(v. i.) To form needles; to crystallize in the form of needles.
Example Sentences:
(1) Needle acupuncture did, however, increase the pain threshold compared with the initial value (alpha = 0.1%).
(2) The fine needle aspiration cytology features of twelve peripherally located bronchioloalveolar cell carcinomas of the lung diagnosed by fine needle aspiration biopsy are described.
(3) Needle insertion close to the midline is the safest technique.
(4) The intra cellular free amino acid concentrations of skeletal muscle were determined in tissue specimens obtained before operation and on the third postoperative day using a percutaneous needle biopsy technique.
(5) The results showed the kind of needling sensation while acupuncture had close relation with the appearance of PSM and the acupuncture effect.
(6) Use 3-ml Luer-Lok syringes and 30-gauge needles and thread the needle carefully into the vessel while using slow and steady injection with light pressure.
(7) US guidance facilitated placement of a 22-gauge needle by means of a subxyphoid or transthoracic approach.
(8) These findings in a patient with acute leukaemia are strongly suspicious of fungal infection, and percutaneous fine-needle aspiration under ultrasound or computed tomography-guidance is indicated.
(9) Nuclear DNA distribution in fine-needle specimens from 112 breast carcinomas and 45 prostatic tumours was studied.
(10) Recent reports have indicated the usefulness of nuclear grooves (clefts or notches) as an additional criterion for the diagnosis of papillary thyroid carcinoma in fine needle aspirates; most of these studies were carried out on alcohol-fixed material stained with the Papanicolaou stain or with hematoxylin and eosin, which yield good nuclear details.
(11) The retreating rate constants deduced from the dissolution results were well coincident with the values directly determined by the needle penetration method, suggesting good applicability of the proposed equation.
(12) One to 6 needles were used on each occasion in a maximum of 3 treatments.
(13) Using a special electromyographic hypodermic needle, we injected botulinum A toxin into one of the vocal folds of two patients with severe spasmodic dysphonia.
(14) One hundred thirty-two of 397 consecutive percutaneous fine needle aspirations done at the University of Virginia between January, 1979, and December, 1984, for pulmonary lesions showed no evidence of cancer on cytological examination.
(15) The method can be successfully applied to richly cellular needle aspirates.
(16) During the surgery for the purpose of removal of the tumor, needle type-O2 sensors were inserted into femoral artery and in brain tumor to measure PaO2 and intratumoral O2 pressure.
(17) Consequently the puncture site becomes small (a balloon-catheter may be introduced through a 16 G catheter needle) allowing punctures proximal to lesions (e.g.
(18) The results of 1245 amniocenteses performed by the "free hand needle" technique and ultrasonic control are discussed.
(19) Various methods have so far been used to treat pneumothorax, including rest, needle exsufflation and blind drainage.
(20) This article demonstrates the importance of the use of immunocytochemical methods on fine-needle aspirates to diagnose metastases to the breast.