Lancer votre recherche de document sur le web et trouver tous les livres correspondants
Menu



Top 20


20 Nouveautés


Liste

Résultats pour

Ridgevue

(Temps écoulé : 3.0955)
Liens Sponsorislés


Contrast
Sensitivity
1 Contrast Sensitivity Test - Ridgevue Vision
Auteur : Ridgevue Vision
Genre : Medical
This iPad-based letter contrast sensitivity test is similar in principle to the well-established Pelli-Robson Chart and Mars Letter Contrast Sensitivity Test. 
The letters have all been calibrated for the Retina Display.
The iPad test presents two letters per page and in 0.1 log unit steps. Thus scores should be equivalent to those obtained with the Pelli-Robson Chart. The test uses the same 10-letter set as the Bailey-Lovie Visual Acuity Chart.  
Letter contrast sensitivity testing is fast to administer and easy for patients to understand, due to its similarity to visual acuity charts. Letter-based tests have been shown to be more repeatable than printed tests using gratings and are widely used in large clinical trials supported by the US National Institutes of Health.
Unlike other tests, the test requires no external lighting and runs on the ubiquitous

Contrast
Sensitivity
2 Ridgevue Contrast Sensitivity Test - Ridgevue Vision
Auteur : Ridgevue Vision
Genre : Medical
This iPad-based letter contrast sensitivity test is similar in principle to the well-established Pelli-Robson Chart and Mars Letter Contrast Sensitivity Test. 
The letters have all been calibrated for the Retina Display on the iPad 3 and iPad 4. The contrast values are not valid for earlier versions.
This student version of the test has not been validated. The full, validated version, available from the Store, should be used for clinical trials, research, driver testing, disease evaluation, drug monitoring, etc.
Letter contrast sensitivity testing is fast to administer and easy for patients to understand, due to its similarity to visual acuity charts. Letter-based tests have been shown to be more repeatable than tests using gratings.
Unlike other tests, the test requires no external lighting and runs on the ubiquitous iPad without need for special software or

3 logMAR Visual Acuity Charts - Ridgevue Vision
Auteur : Ridgevue Vision
Genre : Medical
These iPad-based logMAR visual acuity charts are based on the Bailey-Lovie Visual Acuity Chart. The test uses the same 10-letter set as the Bailey-Lovie chart.  The ten letters appear in a random order and have been shown to have similar visibility. 
Unlike printed tests, these charts require no external lighting and runs on the ubiquitous iPad without need for special software or calibration. The test utilizes the high quality iPad screen to produce letters small enough to measure visual acuity at test distances as short as 6 feet or 2 meters.
The main charts have ten lines of letters. The supplemental charts have two larger letters but the charts are not ideal for the assessment of severely visually impaired patients. At a test distance of 5 feet (1.5 meters) the largest letters will correspond to 20/200 (6/60).  
Low contrast versions of the chart are
4 Liens Sponsorislés

Lensometry
5 Lensometry - Mark A. Bullimore
Auteur : Mark A. Bullimore
Genre : Education
This is intended for students and trainees in optometry, ophthalmology and opticianry.  Included are 8 instructional videos and many other pictures. The 20 pages should enable the reader to:
• Understand the basic components of the lensometer • Measure single vision and multifocal lenses • Estimate prism in prescriptions
The user can:  • Tap on the blue text to reveal glossary terms • Expand the videos to full screen • Highlight text to create notes and study cards  • Tap on the grey text to link to external websites

Geometric
6 Geometric Optics - Mark A. Bullimore
Auteur : Mark A. Bullimore
Genre : Medical
Geometric Optics is an interactive book, intended for students and trainees in optometry, ophthalmology, and opticianry. The 250 pages cover: Prisms; Vergence and the Geometric Behavior of Light; Thin Lenses; Spherical and Plane Refracting Surfaces; Thick Lenses; The Correction of Refractive Error and Model Eyes; Reflection and Mirrors; Magnification and Telescopes; Apertures, Stops, and Field of View; and Astigmatism.
The book contains over 80 instructional videos and animations, 300 color photographs and figures, and 90 worked examples.
All figures and videos can be expanded to full screen with a tap or pinch-out gesture. 
The text contains automatic links to over 170 glossary terms, automatically assembled into a set of study cards or flash cards. Text can be highlighted and annotated to create custom notes. These are automatically added to

Fundamentals
Binocular
7 Fundamentals of Binocular Vision - Avesh Raghunandan
Auteur : Avesh Raghunandan
Genre : Medical
This book describes the fundamentals of binocular vision. It is intended for students of optometry, ophthalmology and orthoptics.  The chapters are: Visual Direction The Horopter Spatial Distortions Induced by Image Magnification Fusion Binocular Rivalry Principles of Human Depth Perception: Monocular cues to absolute and relative distance Principles of Human Depth Perception: 
Binocular cues to absolute 
and relative distance Binocular 
Summation

Student
8 Student Letter Chart Pack Mini - Mark A. Bullimore
Auteur : Mark A. Bullimore
Genre : Medical
This book contains five vision tests
• logMAR Visual Acuity Chart
• Word Reading Chart
• HOTV Single Line Chart
• Tumbling E Chart
• Contrast Sensitivity Test
Unlike printed tests, these charts require no external lighting and display on the iPad without need for special software or calibration. The test utilizes the high quality iPad screen to produce print as small as 2 point
Scoring
The acuity tests can be performed at any distance. The Snellen fraction may be specified as test distance/lowest line read, e.g. 0.4/1.25 for 1.25 M print read at 40 cm. This would convert to a Snellen equivalent of 20/63. 
Important Notes
• The letters display best on the Retina Display.
• They are scaled for the iPad Mini. 
• For more information visit ridgevue.com

Applied
Concepts
Therapy
9 Applied Concepts in Vision Therapy - Leonard J. Press
Auteur : Leonard J. Press
Genre : Medical
Vision therapy is a clinical approach for correcting and ameliorating the effects of eye movement disorders, nonstrabismic binocular dysfunctions, focusing disorders, strabismus, amblyopia, nystagmus, and visual perceptual disorders related to information processing.

Versions
10 logMAR Visual Acuity Charts - Six Versions - Mark Bullimore
Auteur : Mark Bullimore
Genre : Medical
These iPad-based logMAR visual acuity charts are based on the Bailey-Lovie Visual Acuity Chart. The test uses the same 10-letter set as the Bailey-Lovie chart.  The ten letters appear in a random order and have been shown to have similar visibility.  Unlike printed tests, these charts require no external lighting and runs on the ubiquitous iPad without need for special software or calibration. The test utilizes the high quality iPad screen to produce letters small enough to measure visual acuity at test distances as short as 3 feet or 1 meters. The main charts have 14 lines of letters. The supplemental charts have two larger lines but the charts are not ideal for the assessment of severely visually impaired patients. At a test distance of 5 feet (1.5 meters) the largest letters will correspond to 20/200 (6/60).   The logMAR design of the chart may be leveraged to take mor

11 Single Letter Near Vision Test - Ridgevue Vision
Auteur : Ridgevue Vision
Genre : Medical
These iPad-based visual acuity charts are designed for pediatric and preschool near vision testing and contain four letters: H, O, T and V. Tests using these letters have been employed extensively in the Amblyopia Treatment Study and Vision in Preschoolers Study. The chart employs a logMAR design with each line 80% the size of the previous.
Unlike printed tests, these charts require no external lighting and runs on the iPad without need for special software or calibration. The high quality iPad screen displays letters small enough to measure visual acuity at test distances as short as 40 cm.

The test should be performed with the screen brightness set at halfway and Auto-Brightness OFF.  Room lights may be dimmed or left on, but care taken to avoid troublesome reflections.

There are no crowding or contour bars in this test

There are 13

12 HOTV Single Letter Visual Acuity Test - Ridgevue Vision
Auteur : Ridgevue Vision
Genre : Medical
These iPad-based single-letter visual acuity charts are designed for pediatric use and contain the four letters: H, O, T and V. Tests using these letters have been employed extensively in the Amblyopia Treatment Study and Vision in Preschoolers Study.
Unlike printed tests, these charts require no external lighting and runs on the iPad without need for special software or calibration. The high quality iPad screen displays letters small enough to measure visual acuity at test distances as short as 6 feet or 2 m.
The test should be performed with the screen brightness set at halfway and Auto-Brightness OFF.  Room lights may be dimmed or left on, but care taken to avoid troublesome reflections
There are 14 letter sizes from 100 feet (30 M) to 5 feet (1.5 M). Each letter is surrounded on all sides by contour bar. The distance between the letters and the bars is h

13 logMAR Visual Acuity Charts - Ridgevue Vision
Auteur : Ridgevue Vision
Genre : Medical
These iPad-based logMAR visual acuity charts are based on the Bailey-Lovie Visual Acuity Chart. The test uses the same 10-letter set as the Bailey-Lovie chart.  The ten letters appear in a random order and have been shown to have similar visibility. 
Unlike printed tests, these charts require no external lighting and runs on the ubiquitous iPad without need for special software or calibration. The test utilizes the high quality iPad screen to produce letters small enough to measure visual acuity at test distances as short as 6 feet or 2 meters.
The main charts have ten lines of letters. The supplemental charts have two larger letters but the charts are not ideal for the assessment of severely visually impaired patients. At a test distance of 5 feet (1.5 meters) the largest letters will correspond to 20/200 (6/60).  
Low contrast versions of the chart are

Reading
14 Ridgevue Word Reading Charts - Ridgevue Vision
Auteur : Ridgevue Vision
Genre : Medical
These iPad-based near vision charts are based on the logMAR principle. All charts have ten words per print size: two each of 4-letter, 5-letter, 6-letter, 7-letter and 8-letter words. The words are selected  from a list of the 5000 most common words in American English according to www.wordfrequency.info.
Unlike printed tests, these charts require no external lighting and display on the ubiquitous iPad without need for special software or calibration. The test utilizes the high quality iPad screen to produce print as small as 2 point—smaller than a patient can read at a typical reading distance.
The letter sizes are given in both point size and M units. The first page contains 12 lines with the word and line spacing proportional to letter size. The second page  contains larger print sizes. The third page is for routine clinical use and contains 8 lines with more s

Reverse
Contrast
15 Reverse Contrast Single Letter Vision Test - Ridgevue Vision
Auteur : Ridgevue Vision
Genre : Medical
These iPad-based  reserve contrast  visual acuity charts are designed for vision testing in special populations and contain four letters: H, O, T and V. Tests using these letters have been employed extensively in the Amblyopia Treatment Study and Vision in Preschoolers Study. The chart employs a logMAR design with each set of letters 80% the size of the previous. 
Unlike printed tests, these charts require no external lighting and runs on the iPad without need for special software or calibration. The high quality iPad screen displays letters small enough to measure visual acuity at test distances as short as 6 feet or 2 m.
The test should be performed with the screen brightness set at halfway and Auto-Brightness OFF.  Room lights may be dimmed or left on, but care taken to avoid troublesome reflections
There are no crowding or contou

Pediatric
16 Pediatric Single Letter Vision Test - Ridgevue Vision
Auteur : Ridgevue Vision
Genre : Medical
These iPad-based single-letter visual acuity charts are designed for pediatric use and contain the four letters: H, O, T and V. Tests using these letters have been employed extensively in the Amblyopia Treatment Study and Vision in Preschoolers Study.

Unlike printed tests, these charts require no external lighting and runs on the iPad without need for special software or calibration. The high quality iPad screen displays letters small enough to measure visual acuity at test distances as short as 6 feet or 2 m.
The test should be performed with the screen brightness set at halfway and Auto-Brightness OFF.  Room lights may be dimmed or left on, but care taken to avoid troublesome reflections
There are no crowding or contour bars in this version
There are 14 letter sizes from 100 feet (30 M) to 5 feet (1.5 M). The size progression follows the

Tumbling
17 Tumbling E Chart - Ridgevue Vision
Auteur : Ridgevue Vision
Genre : Medical
These Tumbling E visual acuity charts are based on the Bailey-Lovie and ETDRS design. The test uses the letter E at four orientations in a random order. The test is suitable for preschool and other populations 
Unlike printed tests, these charts require no external lighting and runs on the iPad without need for special software or calibration. The high quality iPad screen displays letters small enough to measure visual acuity at test distances as short as 6 feet or 2 m.
The test should be performed with the screen brightness set at halfway and Auto-Brightness OFF.  Room lights may be dimmed or left on, but care taken to avoid troublesome reflections
It is recommended that three of five letters need to be identified correctly for testing to progress to the next smallest size.
The charts are not ideal for the assessment of severely visually impaired

18 HOTV Single Line Visual Acuity Test - Ridgevue Vision
Auteur : Ridgevue Vision
Genre : Medical
These iPad-based visual acuity charts are designed for pediatric use and contain four letters: H, O, T and V. Tests using these letters have been employed extensively in the Amblyopia Treatment Study and Vision in Preschoolers Study.
Unlike printed tests, these charts require no external lighting and runs on the iPad without need for special software or calibration. The high quality iPad screen displays letters small enough to measure visual acuity at test distances as short as 6 feet or 2 m.
There are 11 pages each with a line of 5 letters. Each line is surrounded on all sides by a border, serving as a crowding contour. The distance between the letters and the surrounding border half the letter size.
It is recommended that three of four letters need to be identified correctly for testing to progress to the next smallest size.
The charts are not ideal for the asse

19 HOTV Visual Acuity Flip Charts - Ridgevue Vision
Auteur : Ridgevue Vision
Genre : Medical
These iPad-based visual acuity charts are designed for pediatric and preschool near vision testing and contain four letters: H, O, T and V. Tests using these letters have been employed extensively in the Amblyopia Treatment Study and Vision in Preschoolers Study. The chart employs a logMAR design with each line 80% the size of the previous.
Unlike printed tests, these charts require no external lighting and runs on the iPad without need for special software or calibration. The high quality iPad screen displays letters small enough to measure visual acuity at test distances as short as 40 cm.
The test should be performed with the screen brightness set at halfway and Auto-Brightness OFF.  Room lights may be dimmed or left on, but care taken to avoid troublesome reflections.
There are 13 pages that each have a line of 5 letters. Each line is surrounded on all s

Variable
Contrast
Sensitivity
20 Variable Size Letter Contrast Sensitivity Test - Mark A. Bullimore
Auteur : Mark A. Bullimore
Genre : Medical
This iPad-based letter contrast sensitivity test is similar in principle to the well-established Pelli-Robson Chart, the Mars Letter Contrast Sensitivity Test and Rabin’s Small Letter Contrast Sensitivity Test. 
Letter contrast sensitivity testing is fast to administer and easy for patients to understand, due to its similarity to visual acuity charts. Letter-based tests have been shown to be more repeatable than printed tests using gratings and are widely used in large clinical trials supported by the US National Institutes of Health.
Unlike other tests, the test requires no external lighting and runs on the iPad without need for special software or calibration. The test utilizes the high quality iPad screen to produce letters with contrasts as low as 0.5%, invisible to the average patient.
The test presents four lines of five letters on e

Reading
21 French Reading Charts - Mark A. Bullimore
Auteur : Mark A. Bullimore
Genre : Medical
These iPad-based near vision charts are based on the logMAR principle. All charts have ten words per print size: two each of 4-letter, 5-letter, 6-letter, 7-letter and 8-letter words. The words are selected  from a list of the 5000 most common French words in according to wikipedia.
Unlike printed tests, these charts require no external lighting and display on the ubiquitous iPad without need for special software or calibration. The test utilizes the high quality iPad screen to produce print as small as 2 point—smaller than a patient can read at a typical reading distance.
The letter sizes are given in both point size and M units. The first page contains 12 lines with the word and line spacing proportional to letter size. The second page  contains larger print sizes. The third page is for routine clinical use and contains 8 lines with more space between print size

Western
Regional
Conference
Commemorative
22 Western Regional Conference Commemorative Vision Tests - Mark A. Bullimore
Auteur : Mark A. Bullimore
Genre : Medical
This book contains five vision tests
logMAR Visual Acuity Chart
Word Reading Chart
HOTV Single Line Chart
Tumbling E Chart
Contrast Sensitivity Test
Unlike printed tests, these charts require no external lighting and display on the iPad without need for special software or calibration. The test utilizes the high quality iPad screen to produce print as small as 2 point
Scoring
The acuity tests can be performed at any distance. The Snellen fraction may be specified as test distance/lowest line read, e.g. 0.4/1.25 for 1.25 M print read at 40 cm. This would convert to a Snellen equivalent of 20/63. 
Important Notes
The letters display best on the Retina Display. They are scaled for the full size iPad.  For more information visit ridgevue.com

English
Spanish
Reading
23 English and Spanish Reading Charts - Mark Bullimore
Auteur : Mark Bullimore
Genre : Medical
Based on the logMAR principle, All charts have ten words per print size: two each of 4-letter, 5-letter, 6-letter, 7-letter and 8-letter words. The words are selected from a list of the 5000 most common words in American English according to www.wordfrequency.info and the 4000 most common Spanish words and expressions according to www.learningspanish-spain.com

Geometric
24 Geometric Optics - Mark Bullimore
Auteur : Mark Bullimore
Genre : Medical
Geometric Optics is an interactive book, intended for students and trainees in optometry, ophthalmology, and opticianry. The 250 pages cover: Prisms; Vergence and the Geometric Behavior of Light; Thin Lenses; Spherical and Plane Refracting Surfaces; Thick Lenses; The Correction of Refractive Error and Model Eyes; Reflection and Mirrors; Magnification and Telescopes; Apertures, Stops, and Field of View; and Astigmatism.

The book contains over 80 instructional videos and animations, 300 color photographs and figures, and 90 worked examples.

All figures and videos can be expanded to full screen with a tap or pinch-out gesture. 

The text contains automatic links to over 170 glossary terms, automatically assembled into a set of study cards or flash cards. Text can be highlighted and annotated to create custom notes. These are auto

English
Spanish
Reading
25 English and Spanish Reading Charts for the iPad Mini - Mark A. Bullimore
Auteur : Mark A. Bullimore
Genre : Medical
These near vision test charts are designed for the iPad Mini.

Based on the logMAR principle, All charts have ten words per print size: two each of 4-letter, 5-letter, 6-letter, 7-letter and 8-letter words. The words are selected from a list of the 5000 most common words in American English according to www.wordfrequency.info and the 4000 most common Spanish words and expressions according to www.learningspanish-spain.com.

Unlike printed tests, these charts require no external lighting and display on the ubiquitous iPad without need for special software or calibration. The test utilizes the high quality iPad screen to produce print as small as 2 point—smaller than a patient can read at a typical reading distance.

The letter sizes are given in both point size and M units. A first page contains 12 lines with the word and line spacing proportional to let

English
Reading
26 French and English Reading Charts for the iPad Mini - Mark A. Bullimore
Auteur : Mark A. Bullimore
Genre : Medical
These iPad-based near vision charts are based on the logMAR principle. All charts have ten words per print size: two each of 4-letter, 5-letter, 6-letter, 7-letter and 8-letter words. The words are selected  from lists of the 5000 most common English and French words.
Unlike printed tests, these charts require no external lighting and display on the ubiquitous iPad without need for special software or calibration. The test utilizes the high quality iPad screen to produce print as small as 2 point—smaller than a patient can read at a typical reading distance.
The letter sizes are given in both point size and M units. The first page contains 12 lines with the word and line spacing proportional to letter size. The second page  contains larger print sizes. The third page is for routine clinical use and contains 8 lines with more space between print sizes. The s

English
Reading
27 French and English Reading Charts - Mark A. Bullimore
Auteur : Mark A. Bullimore
Genre : Medical
These iPad-based near vision charts are based on the logMAR principle. All charts have ten words per print size: two each of 4-letter, 5-letter, 6-letter, 7-letter and 8-letter words. The words are selected  from lists of the 5000 most common English and French words.
Unlike printed tests, these charts require no external lighting and display on the ubiquitous iPad without need for special software or calibration. The test utilizes the high quality iPad screen to produce print as small as 2 point—smaller than a patient can read at a typical reading distance.
The letter sizes are given in both point size and M units. The first page contains 12 lines with the word and line spacing proportional to letter size. The second page  contains larger print sizes. The third page is for routine clinical use and contains 8 lines with more space between print sizes. The s

28 HOTV Visual Acuity Flip Charts - Mark A. Bullimore
Auteur : Mark A. Bullimore
Genre : Medical
These iPad-based visual acuity charts are designed for pediatric use and contain four letters: H, O, T and V. Tests using these letters have been employed extensively in the Amblyopia Treatment Study and Vision in Preschoolers Study.
Unlike printed tests, these charts require no external lighting and runs on the iPad without need for special software or calibration. The high quality iPad screen displays letters small enough to measure visual acuity at test distances as short as 6 feet or 2 m.
Test Procedure
The test should be performed with the screen brightness set at halfway and Auto-Brightness OFF.  Room lights may be dimmed or left on, but care taken to avoid troublesome reflections
There are 11 pages each with a line of 5 letters. Each line is surrounded on all sides by a border, serving as a crowding contour. The distance between the lette

Pediatric
Contrast
Sensitivity
29 Pediatric Contrast Sensitivity Test - Mark A. Bullimore
Auteur : Mark A. Bullimore
Genre : Medical
This iPad-based pediatric contrast sensitivity test is similar in principle to the well-established Pelli-Robson Chart,. It uses the HOTV symbols which have been used in major NIH-funded clinical studies including the Visual in Preschoolers Study and the Amblyopia Treatment Study.  
Letter contrast sensitivity testing is fast to administer and easy for patients to understand, due to its similarity to visual acuity charts. Letter-based tests have been shown to be more repeatable than printed tests using gratings.
Unlike printed charts, the test requires no external lighting and uses the iPad without need for special software or calibration. The test utilizes the high quality iPad screen to produce letters with contrasts as low as 0.5%, below that visible to the average patient. Validation of this format has been published in Optometry and Vi

Variable
Contrast
Sensitivity
30 Variable Size Letter Contrast Sensitivity Test - Mark A. Bullimore
Auteur : Mark A. Bullimore
Genre : Medical
This iPad-based letter contrast sensitivity test is similar in principle to the well-established Pelli-Robson Chart, the Mars Letter Contrast Sensitivity Test and Rabin’s Small Letter Contrast Sensitivity Test. 
Letter contrast sensitivity testing is fast to administer and easy for patients to understand, due to its similarity to visual acuity charts. Letter-based tests have been shown to be more repeatable than printed tests using gratings and are widely used in large clinical trials supported by the US National Institutes of Health.
Unlike other tests, the test requires no external lighting and runs on the iPad without need for special software or calibration. The test utilizes the high quality iPad screen to produce letters with contrasts as low as 0.5%, invisible to the average patient.
The test presents four lines of five letters on e

31 logMAR Visual Acuity Charts - Mark Bullimore
Auteur : Mark Bullimore
Genre : Medical
These iPad-based logMAR visual acuity charts are based on the Bailey-Lovie Visual Acuity Chart. The test uses the same 10-letter set as the Bailey-Lovie chart.  The ten letters appear in a random order and have been shown to have similar visibility. 
Unlike printed tests, these charts require no external lighting and runs on the ubiquitous iPad without need for special software or calibration. The test utilizes the high quality iPad screen to produce letters small enough to measure visual acuity at test distances as short as 40 cm.
Low contrast versions of the chart are also provided. The letters is 10% Weber contrast. In other words the luminance of letters is  90% of the background.  
The logMAR design of the chart may be leveraged to take more precise measurements. Credit may given for each individual letter read correctly (0.02 log units). On the

Primary
Eyecare
Procedures
32 Atlas of Primary Eyecare Procedures Volume 1 - Linda Casser
Auteur : Linda Casser
Genre : Medical
This clearly illustrated atlas offers straightforward, step-by-step descriptions of common eye procedures used regularly in primary eyecare practice. Covering the fundamentals of all major optometric techniques, procedures and tests used for diagnosis and treatment of ocular disorders. Over 35 instructional videos are included.
Chapters:
Drop Instillation and Punctal Occlusion: Adults; Drop Instillation and Punctal Occlusion: Young Children; Pledget Use for Drops; Sector Pupil Dilation; Ointment Application: Conjunctival Sac; Patient Instructions: Drop Instillation; Patient Instructions: Ointment Application to Lid Margins; Patient Instructions: Ointment Application to Conjunctival Sac; Overview Biomicroscopic Evaluation; Van Herick Angle Estimation; Tear Meniscus Evaluation; Corneal Evaluation; Anterior Chamber Evaluatio
Pas de Suggestions Relatives pour: Ridgevue