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Basics of Computer Vision Syndrome
Ajay Kumar Bhootra
CHAPTER 1:
Computer and Vision
VISION AND VISUAL SYSTEM
VISUAL DEMANDS FOR COMPUTER WORK
COMPUTER AND BODY POSTURE
COMPUTER AND BLINK RATE
CHAPTER 2:
Computer Vision Syndrome
VISUAL SYMPTOMS
OCULAR SYMPTOMS
ASTHENOPIC SYMPTOMS
LIGHT SENSITIVITY SYMPTOMS
MUSCULOSKELETAL SYMPTOMS
GENERAL SYMPTOMS
CHAPTER 3:
Laws of Computer Vision
CHAPTER 4:
Understanding Patient, Patient's Visual Environment and Visual System
HISTORY TAKING
VISUAL ACUITY TEST
High and Low Contrast Acuity
Visual Acuity with Current Correction
Pinhole Acuity
DOMINANT EYE TEST
OBJECTIVE ASSESSMENT OF EYE
Torchlight Examination
Retinoscopy
Auto refractometry
Keratometry
CHAPTER 5:
Correction of Refractive Error for CVS Patient
SYMPTOMS
RATIONALE
TYPES OF REFRACTIVE ERROR
Hypermetropia
Myopia
Astigmatism
Presbyopia
CYCLOPLEGIC REFRACTION
REFRACTIVE ERROR CORRECTION
Subjective Refraction
Refinements
Enhancements
CHAPTER 6:
Accommodative Function and Its Management
SYMPTOMS
RATIONALE
ACCOMMODATIVE FUNCTION
Accommodative Insufficiency
Accommodative Excess
Accommodative Infacility
CLINICAL EXAMINATION OF ACCOMMODATION FUNCTION
Amplitude of Accommodation
Accommodative Facility
Binocular Accommodative Range
Lag of Accommodation
TREATMENT
CHAPTER 7:
Binocular Vision and Its Management
SYMPTOMS
RATIONALE
CLINICAL EXAMINATION OF BINOCULAR VISION
Phoria
Fixation Disparity
Near Point of Convergence
Vergence Range
Vergence Facility
TREATMENT
CHAPTER 8:
Eye Movement Disorder and Its Management
SYMPTOMS
RATIONALE
Fixation
Saccades
Regression
CLINICAL EXAMINATION OF OCULAR MOTOR DYSFUNCTION
TREATMENT
CHAPTER 9:
Computer Use and Dry Eye
SYMPTOMS
RATIONALE
Decreased Blink Rate
Higher Viewing Angle
Larger Palpebral Aperture
Lower Workplace Humidity
DIAGNOSIS OF DRY EYES
Schirmer Test
Tear Meniscus Height
Tear Break up Time Test
Tear Thinning Time (TTT)
Management
1. Consider the Ergonomics of the Computer Workstation
2. Patient Counseling
3. Treatment of Ocular Conditions
CHAPTER 10:
Issues Related to Glare and Reflection
GLARE
Discomfort Glare
Disability Glare
Effects of Glare on Visual Performance of Computer Worker
Checking the Presence of Glare
Solutions to Discomfort Glare
REFLECTION
Reflection and Computer Display
Checking the Presence of Reflection
Management
ROLE OF ANTIREFLECTION SPECTACLE LENSES
CHAPTER 11:
Presbyopia and Computer Use
SYMPTOMS
RATIONALE
DIAGNOSIS OF PRESBYOPIA
Patient History
Refraction
Determine the Near Addition
1. Plus Lens to Clear Near Vision
2. Cross Grid Test
3. Near Duochrome Test
4. Balanced Range of Accommodation
5. Trial and Error Method
COMPUTER AND PRESBYOPIA
TREATING PRESBYOPIC PATIENTS FOR COMPUTER WORK WITH LENSES: TWO STEPS METHOD (FIG.11.3)
Single Vision Lenses
Bifocal Lenses
Trifocal Lenses
Progressive Addition Lenses
Occupational Enhanced Near Vision Lenses
CHAPTER 12:
Computer Workstation Arrangement
ISSUES RELATED TO BODY POSTURE
ISSUES RELATED TO FURNITURE AND FIXTURE
ISSUES RELATED TO HARDWARE AND ATTACHMENT (FLOWCHART 12.4)
Computer Monitor
Keyboard
Mouse
Copyholder
ISSUES RELATED TO COMPUTER DISPLAY
Resolution
Pixel Settings
Character Size
Screen Luminance
Contrast
Contrast Polarity
Screen Color
Refresh Rate
IDEAL SITTING POSTURE WHILE WORKING ON COMPUTER (FIG. 12.2)
IDEAL COMPUTER WORKSTATION
CHAPTER 13:
Sequential Management Considerations
INITIAL MANAGEMENT
SUBSEQUENT FOLLOW UPS
Added Lenses
Prism Lenses
Vision Therapy
Ocular Health
ERGONOMIC ISSUES
CHAPTER 14:
Building Up the Practice As CVS Specialist
GETTING STARTED
PLACE PLANNING TO SET UP THE PRACTICE
SETTING UP THE PRACTICE (FLOWCHART 14.4)
PROMOTIONS AND MARKETING
Internal Marketing
External Marketing
Owning a website
Networking with potential referral sources
Building long-term relations with the patients
Articles featuring practice and practitioner
Workshops, seminars and conferences
PRACTICE MANAGEMENT
STAND PROUD AND HAVE SELF-COMMITMENT
Bibliography
INDEX
TOC
Index
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