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Welcome. Visionequip offers incredible savings and finance options on all Pre-Owned Used Auto Refractors and Keratometers. Flexible Financing Options, including $100.00 per month for the first 6 months on any equipment lease with buyout option give you the ability to equip your practice and enhance cash flow. Call 888-783-7891 for details on this special ophthalmic equipment finance program.
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New DEMO AutoRefractor-Keratometer....Save up to 20%!!!
Canon RK-F1 Auto Refractor Keratometer
The Canon RK-F1 Full Auto Refractor-Keratometer simplifies the standard measurement procedure to an unprecedented degree-all operations in just one step. With a press of the Start button, the RK-F1 automatically completes the entire series of steps for both eyes: alignment, measurement, and printout. The motorized optical head automatically aligns, acquires the readings, and then automatically moves over to the opposite eye to perform the same function. The unit can also be operated manually to acquire readings..
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NEW DEMO Tomey AutoRefractor-Keratometer Save up to 20%
Tomey RC 5000 Auto Refractor Keratometer
The Tomey RC 5000 Autorefrector/keratometer provides Automatic Measurement in four easy steps:
1.Use power assist joystick for rough alignment.
2.Touch the center of the pupil on the display with your fingertip and the RC-5000 will automatically align and begin measurements.
3. Press the R/L icon on the display and the instrument will automatically move to and measure the other eye.
4.Printing is automatic.
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Tomey RT 7000 Advanced AutoRefractor-Keratometer- Topographer
Tomey RT 7000 Auto Refractor- Keratometer - Topographer
The Tomey RT 7000 Three Function in One Instrument
Refractometer, Keratometer and Topographer all-in-one unit. Patients are able to receive a comprehensive inspection without the hassle of moving from station to station.
With one touch the RT 7000 is able to quickly switch from Ref-Kerato mode to Corneal Topography mode as the light cone appears from the measuring head and the Ref-Keratometer is transformed to Topographer..
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NEW AutoRefractor-Keratometer 20% off through January 31, 2010
Shin Nippon AccuRefK Auto Refractor - Keratometer
The Shin Nippon AccuRefK is a familiar design with proven accuracy, durability in a small footprint. Features Clear 5.6 inch LCD color monitor
LCD color monitor produces superb colorful display of the icons for easier identification to select your desired choices for measurement. 2.3 mm Minimum Pupil Diameter & 3 step Target Light Adjuster. Allows you to measure much smaller pupils than conventional units and 3 step Target Light Adjuster ensures accurate results. Kerato-Peripheral Measurement 4 Plots of Cornea can be measured. An excellent value for the money.
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Rodenstock CX 1000 NEW AutoRefractor-Keratometer
Rodenstock CX 1000 NEW Auto Refractor Keratometer
The Rodenstock CX 1000 is a familiar design with proven accuracy, durability in a small footprint. Features Clear 5.6 inch LCD color monitor
LCD color monitor produces superb colorful display of the icons for easier identification to select your desired choices for measurement. 2.3 mm Minimum Pupil Diameter & 3 step Target Light Adjuster. Allows you to measure much smaller pupils than conventional units and 3 step Target Light Adjuster ensures accurate results. Kerato-Peripheral Measurement 4 Plots of Cornea can be measured.
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Canon RK-1 Pre-Owned Used AutoRefractor-Keratometer
Canon RK-1 Pre-Owned Used Auto Refractor
The Canon RK-1 autorefrector/keratometer performs two important functions. First, it scans your eye and gives us, with a high degree of accuracy, an estimation of your glasses prescription. It then provides measurements of the curvature of your cornea that we can use to more accurately fit you with the most appropriate contact lens.
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Canon RK-2 Pre-Owned Used AutoRefractor-Keratometer
The Canon RK-2 autorefrector/keratometer performs two important functions. First, it scans your eye and gives us, with a high degree of accuracy, an estimation of your glasses prescription. It then provides measurements of the curvature of your cornea that we can use to more accurately fit you with the most appropriate contact lens.
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Canon RK-5 Pre-Owned Used AutoRefractor-Keratometer
The Canon RK-5 Autorefractor Keratometer combines refraction and keratometery readings in one compact, efficient unit with wide measurement range. The RK-5 can be utilized to document lens opacity (retinal illumination), and PD. Corneal diameter and contact lens checking is easy to perform along with peripheral measurements This unit is connectable to Canon BJ or LBP printer.
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Humphrey Zeiss 599 Pre-Owned Used AutoRefractor-Keratometer
Humphrey 599 The 599 is the first combination refractor-keratometer to offer subjective refinement of sphere, cylinder, and axis as well as isolated acuity lines, children's targets, near testing, and low contrast sensitivity testing. Additionally the Glare Test eliminates the need for a BAT (Brightness Acuity Test) and also can assist early detection of cataracts
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Humphrey Zeiss 5015 Acuitus Pre-Owned Used AutoRefractor-Keratometer
The Humphrey 5015 Auto Refractor Keratometer with its expanded refracting capabilities, you and your staff will enjoy the ability refract your children and elderly patients. You will be able to refract one-day post operative IOL and refractive surgery patients. A flat color screen display produces clear and concise images.
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Nidek ARK-700A Pre-Owned Used AutoRefractor-Keratometer
The Marco Nidek ARK 700A A combination Refractor Keratometer. The operator can choose to read both the objective refraction and K readings at the same time or one at a time. The unit will store up to 20 readings and average the readings and time three or more are taken per eye. The left and right are easily distinguished for comparability. The instrument easily accommodates patients with intraocular lenses, and uses the single picture target. Auto printing are new features on the ARK-700A.
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Marco Nidek 730A Pre-Owned Used AutoRefractor-Keratometer
Marco has added the ARK-730A, offering several enhanced features, to its line of automated refractors/keratometers. The ARK-730A provides fully automatic alignment, tracking and focusing to ensure reliable and repeatable data for refractive measurements and keratometry. The ARK-730A also allows the operator to take peripheral keratometric measurements including sagittal radius and eccentricity values used in corneal evaluations for contact lens fitting and refractive surgery evaluations.
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Marco Nidek 760A Pre-Owned Used AutoRefractor-Keratometer
Marco NIDEK ARK-760A Autorefractor / Keratometer With Subjective Refraction Objective and Subjective Measurements, Auto Eye tracking, Auto-Shot and Auto-Print Functions, Cornea and Pupil Size Measurements, High Speed Measurement Function, Calculation & Printout of the Pupillary Distance (PD), Trial Lens Data Printout, Eye Shape Diagram Printout.
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Marco Nidek ARK 900 Pre-Owned Used AutoRefractor-Keratometer
Auto Refractor / Keratometer The Nidek ARK 900 A combination Refractor Keratometer. The operator can choose to read both the objective refraction and K readings at the same time or one at a time. The unit will store up to 20 readings and average the readings and time three or more are taken per eye. The left and right are easily distinguished for comparability. The instrument easily accommodates patients with intraocular lenses, and uses the single picture target. Auto printing are new features on the ARK-900.
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Nidek AR 2000 Auto Refractor Pre-Owned Used AutoRefractor
Auto Refractor onlyThe Nidek AR 2000 An AutoRefractor only. The operator can choose to read the objective refraction measurements one at a time. The unit will store up to 20 readings and average the readings and time three or more are taken per eye. The left and right are easily distinguished for comparability. The instrument easily accommodates patients with intraocular lenses, and uses the single picture target. Auto printing are new features on the AR 2000.
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Nikon Retinomax 2 Pre-Owned Used AutoRefractor-Keratometer
Features include: Portable full feature refractions, Measurements from any position, Retro illumination function, Battery operated. Weighing just under one kilogram, the main body with battery is over 17% lighter for the K-plus 3 and 11% lighter for the Retinomax 3 than the conventional Retinomax Series models. The Retinomax Series 3’s center of gravity is in the grip, making the Series 3 feel much more lighter and balanced.
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Reichert KR-460 Pre-Owned Used AutoRefractor-Keratometer
The KR460 incorporates sophisticated electronics, superior optics, and robust mechanics to bring you a highly accurate instrument. With the KR460, there's no joystick or chin rest to adjust. Utilizing our exclusive "hands-free" alignment technology, the KR460 provides consistent, fast, accurate readings. This patented system increases ease of use, reduces operator error, and optimizes patient throughput time.
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Topcon KR3000 Pre-Owned Used AutoRefractor-Keratometer
Topcon KR3000 Accomplish full refraction and keratometry measurements for the patient in one fast, simple operation with the Topcon KR3000. The video monitor displays both refraction and keratometry readings simultaneouslyfor immediate comparison. Patients enjoy relaxed, comfortable testing since the KR3000 employs near-infrared light during the measurement process. Touch-switch selection of three different testing modes: refraction, keratometry or both, fast, simple PD measurement. All KR-3000 test functions enjoy exceptional accuracy and reliability.
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Topcon KR7000 Pre-Owned Used AutoRefractor-Keratometer
Combined automatic refractor and keratometer functions in one compact instrument. The omni directional joy-stick and simplified alignment targets ensure ease of operation. Intra-Red light and auto fogging fixation target elimanate discomfort and promote patient compliance. Extensive keratometric reading plus all of the refraction features found in the RMA-7000 searies auto refractor make the KR-7000 one of the most sophisticated diagnostic instruments available.
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Topcon KR7000P Pre-Owned Used AutoRefractor-Keratometer w/ Topography
This system provides three times the diagnostics in one third the space at a fraction of the cost of individual instruments. Alleviates the burden of standard corneal topography units from the doctor or the highest trained technician and allows newly-trained technicians to obtain equal results. The unit offers excellent comprehensive guidelines to ensure accurate and reliable results.
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Topcon KR8000 Pre-Owned Used Auto Refractor
Topcon KR8000 AutoRefractor-Keratometer Keratometer Topcon KR8000 The innovative design of the KR-8000 enables accurate, reliable refraction and keratometric measurements within a pupil dilation as narrow as 2.0mm. This means easier and more precise diagnostic results when dealing with glaucoma, asymmetric pupils, or elderly patients. Totally reliable and totally accurate with Topcon's Rotary Prism Measuring System, our advanced rotary prism principle is able to obtain highly reliable data.
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Topcon KR8800 Pre-Owned Used AutoRefractor-Keratometer
The KR8800 features fast, easy and accurate measurements, a 20% wider measurement range, a color LCD screen, and a 2.0mm minimum pupil diameter. Fast and accurate refraction and keratometry readings. New color LCD screen. Rotary Prism measurement for enhanced accuracy. 2.0mm minimum pupil diameter. Simultaneous display of binocular readings. Scenic fixation chart. USB connection for fast data transfer. Auto fire mode for fast reliable data collection.
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Tomey RT 5000 Autorefractor Keratometer - Product Features Automatic Measurement Power Joystick Refractometry Keratometry Diameter Measurement of Cornea and Pupil Language Selection. efractometry Normal Mode: fogging is applied automatically for each measurement for more accurate results Quick Mode: Fogging is applied a needed for consecutive measurements IOL/CAT Mode: This mode is used to measure cataract or pseudophakic eyes. Keratometry -short consecutive measurements and time provide reliable data. -measurements at f 6.0mm (R=8.0mm) as wekk as at f 3.0mm give you enough information for contact lens fitting. -Base curves of contac lense are stored, categorized and suggested manufactures are automatically printed. Diameter Measurement of Cornea and pupil Measurement can be done easily by moving the two cursors on he display to the boundary of Cornea or Pupil. This is useful for deciding the diameter of contact lense and for other contact lens fitting practices.
Shin Nippon Accuref Autorefractor Keratometer-Quick Printer with Automatic Cutter Printing paper is automatically cut when it is released. Contact Lens Base Curve Measurement Base Curve of a hard contact lens can be measured using the contact lens holder. Near Pupil Distance Measurement When measurement is taken with this function, near pupil distance is automatically computed to indicate it on the screen and the printout. RC-232C Setting Function With this function, you can send the measurement data to an external computer through an interface. The data is sent using ASCII CODE. Output Terminal This terminal outputs an NTSC video terminal. If you connect an external monitor, you can observe the same image that appears on the internal monitor screen of ACCUREF-K 9001 simulataneously. Power Saving Function The switchover time can be selected on the menu screen.
A comparison of autorefractor performance. Pesudovs K, Weisinger HS. Department of Ophthalmology, Flinders Medical Centre, Flinders University, Bedford Park, South Australia, Australia. Comment in: Optom Vis Sci. 2005 Jan;82(1):9; author reply 9-10. PURPOSE: To compare the agreement between subjective refraction and autorefraction using two commercially available autorefractors. METHODS: Prospective data were collected for 190 subjects using either the Nidek ARK-700A (Fremont, CA) or the Topcon KR-8000 (Paramus, NJ) and subjective refraction (masked to autorefraction). Refractions were compared in terms of spherical equivalent using Bland-Altman limits of agreement and astigmatic vector difference using median and 95th percentile. RESULTS: The two groups were similar for age, gender, spherical equivalent, and astigmatic power. The differences in spherical equivalent between subjective and autorefraction were significantly different (mean +/- SD; Nidek, -0.03 +/- 0.36 D; Topcon, +0.11 +/- 0.34 D; analysis of variance, F = 7.84; p < 0.01). However, the 95% limits of agreement were similar: Nidek, -0.74 to +0.68 D; Topcon, -0.55 to +0.77 D. The median differences in astigmatic vector difference were also similar: Nidek, 0.27 D and Topcon, 0.25 D. However, the 95th percentile was 0.67 D for Nidek and 1.09 D for Topcon. There was a low frequency of large (>1.00 D) differences in spherical equivalent, 1.1% with each autorefractor. There were five cases with astigmatic vector difference >1 D, all with the Topcon KR-8000 (5.3%). CONCLUSIONS: Both autorefractors show excellent agreement with subjective refraction. Despite a statistically significant difference in mean spherical equivalent (0.14 D), near identical limits of agreement (0.10 D difference) suggest clinical equivalence. Conversely, for astigmatism, despite similar median scores, major outliers were more likely with the Topcon, reflected in a 0.42 D larger 95th percentile, which suggests a small advantage for the Nidek for avoiding large astigmatic errors. PMID: 15252356 [PubMed - indexed for MEDLINE]
Repeatability and validity of the PowerRefractor and the Nidek AR600-A in an adult population with healthy eyes. Allen PM, Radhakrishnan H, O'Leary DJ. Department of Optometry and Ophthalmic Dispensing, Anglia Polytechnic University, Cambridge, United Kingdom. p.m.allen@apu.ac.uk We assessed the repeatability and validity of the PowerRefractor and the Nidek AR-600A autorefractor. This is the first independent study conducted on adults to evaluate the performance of these instruments in a laboratory setting. Fifty subjects (23 males and 27 females) aged 16 to 61 years (mean, 37 +/- 12) participated in the study. The validity of the PowerRefractor and the Nidek autorefractor readings were determined by comparing them to subjective refraction. Measurements of refractive error were obtained from the two instruments on two separate occasions to assess their repeatability. The measured refractive error was converted into a dioptric power matrix for data analysis. No significant difference was found between the measurements obtained with the two instruments and the subjective refraction. The estimate of refractive error given by the two instruments was also found to be repeatable. In addition to measuring the refractive error, the PowerRefractor also offers the facility to measure eye position, pupil size, and dynamics of accommodation. We suggest some improvements to the PowerRefractor measurement technique to standardize its clinical use and to improve accuracy. PMID: 12637836 [PubMed - indexed for MEDLINE]
Findings from the Vision in Preschoolers (VIP) Study. Kulp MT; Vision in Preschoolers Study Group. Collaborators (15)Schmidt P, Baumritter A, Ciner E, Cyert L, Dobson V, Haas B, Kulp MT, Maguire M, Moore B, Orel-Bixler D, Peskin E, Quinn G, Redford M, Schultz J, Ying GS. Erratum in: Optom Vis Sci. 2009 Aug;86(8):1026. Kulp, Marjean Taylor [added]. The Vision in Preschoolers (VIP) Study Group conducted a multicenter, multidisciplinary, two-phase study to evaluate the performance of vision screening tests for identifying pre-school children with amblyopia, strabismus, significant refractive error, or unexplained reduced visual acuity (VA). The results of the VIP Study provide evidence-based guidelines for preschool vision screening. The best screening tests administered by eye care professionals were non-cycloplegic retinoscopy, Retinomax Autorefractor, SureSight Vision Screener, and linear, crowded Lea Symbols VA at 10 feet. The best screening tests administered by trained nurses and/or lay screeners were Retinomax, SureSight, and VIP single, crowded Lea Symbols VA screening test system at 5 feet. Eye care professionals can improve detection of strabismus by combining unilateral cover test with a refraction test and trained lay screeners can improve detection of strabismus by combining Stereo Smile II with SureSight. The best performing tests had high testability whether performed by trained eye care professionals, nurses, or lay screeners (>or=98%). Although very few children were unable to complete these tests, a child who was "unable" was much more likely to have a vision problem than a child who passed; therefore, children who are unable to complete one of these tests should be referred for further evaluation. When screening using the Retinomax, repeated testing to achieve the manufacturer's suggested confidence number is valuable and improves specificity. Federal initiatives to increase the number of pre-school children receiving vision screening or examination will increase the number of pre-school children identified with amblyopia, strabismus, and/or significant refractive error. Although there is general agreement regarding the importance of early detection of amblyopia, controversy exists regarding the importance of early detection of refractive error. Because of the high prevalence of significant refractive errors and lack of evidenced-based guidelines for correction of refractive error in pre-school children, future research is needed to evaluate the value of correcting refractive errors in preschoolers who do not have amblyopia and/or strabismus. PMID: 19417714 [PubMed - indexed for MEDLINE]
Objective accommodation measurements in pseudophakic subjects using an autorefractor and an aberrometer. Win-Hall DM, Glasser A. University of Houston, College of Optometry, Houston, Texas 77204, USA. PURPOSE: To compare objective measures of accommodation with the WR-5100K autorefractor and iTrace aberrometer to subjective push-down and defocus tests in normal phakic subjects and pseudophakic subjects with standard monofocal intraocular lenses (IOLs). SETTING: University of Houston, College of Optometry, Houston, Texas, USA. METHODS: The push-down test and defocus curves were used to stimulate and measure accommodation subjectively in pseudophakic subjects. For objective testing, a near target was pushed up and refraction measured objectively. For comparison, the same objective measurements were performed in phakic subjects. Calibration tests were performed with soft contact lenses in phakic subjects with varying refractive error and in pseudophakic subjects. RESULTS: Fifteen phakic subjects (mean age 28.9 years+/-5.52 [SD]) and 10 pseudophakic subjects (mean age 66.2+/-11.23 years) participated. Subjectively measured accommodative amplitude in the pseudophakic group was 3.28+/-1.11 diopters (D) in the right eye and 3.64+/-1.38 D in the left eye. Defocus curves in the pseudophakic group had a range of 2.00 D for distance-corrected visual acuity of 20/40 or better. Objective measurements in the pseudophakic group were 0.11+/-0.50 D with the autorefractor and 0.10+/-0.47 D with the aberrometer. Contact lens calibrations showed good agreement with the 1:1 line. CONCLUSIONS: The subjective tests overestimated accommodative amplitude relative to the objective measures. The autorefractor and aberrometer were accurate, reliable, and appropriate for objective accommodation measurements in pseudophakes. Objective accommodation measurements such as these can be used to evaluate the performance of accommodating IOLs. PMID: 19185244 [PubMed - indexed for MEDLINE]
Plusoptix Vision Screener: the accuracy and repeatability of refractive measurements using a new autorefractor. Dahlmann-Noor AH, Comyn O, Kostakis V, Misra A, Gupta N, Heath J, Brown J, Iron A, McGill S, Vrotsou K, Vivian AJ. Eye Treatment Centre, West Suffolk Hospital NHS Trust, Hardwick Lane, Bury St Edmunds IP33 2QZ, UK. BACKGROUND: The Plusoptix Vision Screener (PVS) is a new non-cycloplegic videoretinoscopy autorefractor. Refractive accuracy may affect its performance as a screening tool. AIMS: Study 1: To determine the intra- and interobserver variability of PVS measurements. Study 2: To compare PVS measurements with gold-standard manual cycloplegic retinoscopy (MCR). METHODS: Study 1: PVS refraction of 103 children with mean (SD) age 5.5 (0.6) years by two observers. Study 2: PVS and MCR refraction of 126 children with mean (SD) age 5.5 (1.5) years, including 43 children with manifest strabismus >/=5 PD, comparing mean spherical equivalent (MSE) and Jackson cross cylinders J(0) and J(45). RESULTS: Study 1: Repeatability coefficients (observer 1): MSE: 0.63 D, J(0): 0.24 D, J(45): 0.18 D; those of observer 2 were nearly identical. The mean difference (95% limits of agreement) between the two observers for MSE, J(0) and J(45) were, respectively, 0.03 (-0.62 to 0.68 D), -0.008 (-0.25 to 0.23 D) and 0.013 (-0.18 to 0.20) D. Study 2: MSE tended to be lower on PVS than MCR, with differences of up to 8.00 D. Less than 20% of values were within +/-0.50 D of each other. Agreement was better for J(0) and J(45). Strabismus was associated with an odds ratio of 3.7 (95% CI 1.3 to 10.5) of the PVS failing to obtain a reading. CONCLUSIONS: The PVS may underestimate children's refractive error. PMID: 19001013 [PubMed - indexed for MEDLINE]
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