(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.
Audiometer
Definition:
(n.) An instrument by which the power of hearing can be gauged and recorded on a scale.
Example Sentences:
(1) Clinical measurements of the loudness discomfort level (LDL) are generally performed while the subject listens to a particular stimulus presented from an audiometer through headphones (AUD-HP).
(2) The result shows that the great majority of children recorded considerably higher discrimination scores when the tests were performed with their individual hearing aids than with the test lists presented through the audiometer and the TDH-49 earphone.
(3) In this study, white noise from a Madsen OB822 audiometer and presented via Sony MDR-V4 dynamic earphones, was used for masking.
(4) The test words in the Finnish speech discrimination test in combination with corresponding white noise were produced by equipment consisting of a high quality tape recorder, an audiometer, an amplifier and loud speakers.
(5) Proposals are made for values for the maximum outputs of audiometers.
(6) The measurements included the maximum output levels, the equivalent threshold force level (ETFL) decreases, the distortions over the whole frequency range (0.5-20 kHz) of the audiometer and the effect of different electrode positions.
(7) In the tracking method, the intensity of the stimulus from a self-recording audiometer is adjusted by the experimenter to bracket the acoustic reflex threshold as visually observed on the meter of an acoustic impedance measuring device.
(8) The frequency and intensity of the tone was matched by use of a multifrequency audiometer.
(9) Battery-operated, in-office, limited-frequency audiometers are available for under $350.
(10) Hearing thresholds before and after exposure were established with a computerized sweep frequency audiometer in the frequency range 0.8-8 kHz.
(11) Following insertion of the VT, middle ear air volume of these ears was estimated using an impedance audiometer, at 1, 3, and 6 months postoperatively, and every 3 months thereafter.
(12) Reproducibility with the EBC audiometer was better than with the AC audiometer, especially in the HF range.
(13) 97 normal subjects representing 6 age groups were tested with both conventional pure tone audiometry and high frequency audiometry (10-20 kHz) using a commercial high frequency audiometer.
(14) The audiometer delivers sound from a driver unit to the ear canal through a lossy tube and earpiece providing a source impedance essentially equal to the characteristic impedance of the tube.
(15) The measuring apparatus consisted mainly of a Békésy audiometer and an accelerometer, Brüel & Kjaer 4344.
(16) The results showed that there is a real bone-conduction effect with this audiometer throughout the high-frequency range with the different electrode positions.
(17) Recently, the 'electric bone-conduction' (EBC) audiometer (Audimax 500) has been used to measure high-frequency (HF) hearing.
(18) A micro-computer based system to simulate patient performance on pure-tone audiometry has been developed, which in conjunction with a dummy audiometer allows easy development of a student training facility.
(19) Several methods have been proposed for calibrating the bone-conduction section of an audiometer.
(20) In a factory involved in heavy industry, an investigation of noise levels was carried out; measurements were made of environmental noise, a questionnaire was given to the workers, and their hearing was tested with audiometer.