Myopia. Optics, Clinical Presentation and Management ( Eye and Vision Research Developments )

Publication series :Eye and Vision Research Developments

Author: Dieudonne Kaimbo Wa Kaimbo (Professor of Ophthalmology and Biophysics   University of Kinshasa   Democratic Republic of Congo)  

Publisher: Nova Science Publishers, Inc.‎

Publication year: 2014

E-ISBN: 9781631179051

P-ISBN(Hardback):  9781631175060

Subject: O4 Physics

Keyword: Optics & Lasers

Language: ENG

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Myopia. Optics, Clinical Presentation and Management

Chapter

Chapter III: Anatomy of the Eye

1. The Adnexa

Orbit

Orbital Osteology

The Orbital Apex

The Extraocular Muscles

Eyelids

The Conjunctiva

Lacrimal Apparatus

2. The Eye, the Eyeball or the Globe

Outer Coat

Anatomy of the Eyeball (McCaa, 1982)

3. Cornea and Sclera

The Cornea

Structure of the Cornea

Corneal Epithelium

Bowman Layer (Bowman’s Membrane)

Corneal Stroma

Dua’s Layer

Descemet’s Membrane

Corneal Endothelium

Blood Supply of the Cornea

Nerve Supply of the Cornea

Corneal Epithelium

Bowman's Membrane

Corneal Stroma

Corneal Endothelium

4. Aging

The Sclera

Scleral Anatomy (Mrejen and Spaide, 2013)

5. The Lens

Function of the Lens

Composition of the Lens

Lens and Zonule

The Crystalline Lens

Lens Capsule

Epithelial Cells (The Lens Epithelium)

The Zonule. Zonular Fibers.

Lens and Aging

The Iris and Pupil

Structure

6. The Choroid

Histology of the Choroid

Choriocapillaris

Choroidal Vascular Layers and Suprachoroid

Choroidal Blood Flow: Nourishment of the Retina

Choroid in High Myopia (Mrejen and Spaid, 2013)

Chorioretinal Atrophy in High Myopia

Biometric Choroidal Changes in Highly Myopic Eyes and Clinical Significance

Imaging the Highly Myopic Disk

Intrachoroidal Cavitation

7. The Ciliary Body

Chambers of the Eye

8. The Retina

Photoreceptor Cells

Retinal Pigment Epithelium

Sensory Retina

Photoreceptor Cell

Blood Supply of the Retina

Topographic Organization of the Retina

9. The Vitreous

The Vitreous Humor

The Visual Pathways

Visual Nerve

The Optic Nerve

Optic Disc (Opti Nerve Head)

Ethnic Variations in Normal Optic Nerve Head Parameters

Peripapillary Atrophy (Samarawickrama, 2012)

Influence of Aging on the Optic Nerve Head

Optic Nerve

Intraorbital Optic Nerve

Intracanalicular Optic Nerve

Intracranial Optic Nerve

Structure

References

Chapter IV: Geometrical Optics

Abstract

1. Definitions

Objects

The Stigmatic Image

The Ideal Image

Rays

2. Properties of Ideal Lenses

3. Infinite Conjugates and Focal Planes

4. Graphically Locating the Image

Ray Sketching

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Step 8

5. Locating Images by Vergence

6. Virtual Images and Virtual Objects

7. Refractive Index

8. Fermat’s Principle, Refraction, and Reflection

9. The Spherical Refracting Surface

10. The Paraxial Power of a Spherical Surface

11. The Thin Lens Approximation

12. Lens Shape and Fabrication

13. Thick Lenses

14. Reduced Vergence

15. Axial Magnification

16. A Focal Systems: Telescopes

Telescopes

17. The Nonstigmatic Image

18. Diffraction

19. Aberrations

20. Image Quality

21. Apertures

22. Cylindrical Lenses

23. Prisms

24. Clinical Examples

Reference

Chapter V: Physical Optics

Abstract

1. History

2. Wave Motion

3. Quantum Theory

4. Atomic Structure

5. Color

6. Intraocular Light Scattering

Definition

Normal Corneal Scattering

Corneal Stromal Edema

Corneal Epithelial Edema

Corneal Scars

Scattering in the Normal Lens

Cataract

Scattering in the Normal Vitreous

Retinal Scattering

Glare

Clinical Glare Testing

Glare Tester Characteristics

Quantification of Glare on Contrast Sensitivity

Surgical Methods

7. Diffraction Effects

Laser Interferometry

Haloes

Lens Haloes

Corneal Haloes

Pinhole Discs

8. Optical Coherence Tomography

9. Antireflection Coatings

10. Polarization Phenomena

Haidinger Brushes

Photoelasticity

Corneal Birefringence

11. Eye Colors

Iris

Scleral Whiteness

Fundus

12. Fluorescence

13. Densitometry of Scheimplug Photographs of the Lens

14. The Doppler Shift

References

Chapter VI: Biology of the Eye

Abstract

1. Axial Length as the Determinant of Refraction

2. Refractive Error Distribution

3. Optical Components of Refraction

Normal Distribution and Age/Gender Effects in Childhood

4. Refraction and Its Components during the Growth of the Eye

Rapid Infantile Phase of Ocular Growth

Slow Juvenile Phase of Ocular Growth

5. Heredity

References

Chapter VII: The Optics of Myopia

Abstract

1. The Angle Kappa

2. The Correction of Myopia

Image Minification

Lens Tilting

Convergence and Accommodation

Bifocal Spectacles for Myopia

Progressive Addition Lenses

3. Anisometropic Myopia

4. Visual Field Alterations

Contact Lenses

Refractive Surgery

References

Chapter VIII: Diagnosing Myopia

Abstract

1. Measuring Visual Acuity

Distance Visual Acuity

2. Near Distance

Near Vision Testing

Instrumentation and Technique

3. Refraction

3.1. Retinoscopy

3.2. Keratometry

3.3. Autorefraction (Automated Refractors)

3.4. Wavefront Analysis

Wavefront Analysis and Retinal Raytracing

3.5. Lensometry

3.6. Refinement, Subjective Refractometry

Binocular Balancing

Subjective Refraction

Cycloplegic Refraction

Procedure

Instrumentation

Monocular Subjective Refraction

The Jackson Cross-Cylinder test

Duochrome Test

Binocular Balance

Subjective Refraction: Fogging (Kaufman, 2006)

Optical Principles of the Method

Technique

Steps 1 to 4

Step 5

Step 6

Step 7

Step 8

Step 9

Step 10

Balance the Refraction

Possible Problems

Cycloplegic Refraction

Indications

Indications

Undesirable Effect

Cycloplegic Protocol

Current Cycloplegic Agents

Atropine Sulfate

Homatropine Hydrobromide

Scopolamine Hydrobromide

Cyclopentolate Hydrochloride (Cyclogyl)

Tropicamide (Mydriacyl)

Cross-Cylinder Technique for Subjective Refraction

References

Chapter IX: Myopia and Associations

1. Myopia and Myelinated Retinal Nerve Fibers

2. Myopia and Tilted Optic Disks (Witmer et al., 2010)

Definition of Tilted Optic Disk

3. Myopia and Major Age-Related Eye Diseases

4. Myopia and Age-Related Macular Degeneration (AMD)

5. Myopia and Diabetic Retinopathy (DR)

6. Myopia and Age-Related Cataract

7. Myopia and Primary Open-Angle Glaucoma (POAG)

Myopia and OAG (Marcus et al., 2011)

High Myopia and Glaucoma Susceptibility

High Myopia and Glaucoma

The Pathogenesis of the Epidemiological Association between Myopia and Glaucoma

8. Myopia and Visual Function

References

Chapter X: Pathologic Complications Associated with Increasing Myopia

Abstract

1. Fundus Changes, Myopic Retinopathy

Definition

2. Myopic Maculopathy

3. Choroidal Neovascularization

Clinical Findings in Myopic CNV (Silva, 2012)

4. Peripheral Retinal Complications

5. Retinal Detachment

6. Posterior Staphyloma

7. Myopic Macular Schisis

8. Myopic Traction Maculopathy (MTM) (Ouyang, 2012)

Clinical Features

Pathogenesis

Development

9. Myopic Macular Retinoschisis

Myopic Macular Retinoschisis and Progression

10. Macular Hole and Associated Retinal Detachment

11. Optic Disc Abnormalities

Peripapillary Atrophy

12. Choroidal Thickness Measurement in High Myopia

13. Choroidal Thickness and Visual Acuity in Highly Myopic Eyes

Epidemiologty of Pathologic and Myopic Choroidal Neovascularization (Wong et al., 2014)

Pathologic Myopia as a Cause of Blindness or Low Vision (Wong et al., 2014)

Risk Factors for Pathologic Myopia (Wong et al., 2014):

Pathologic Myopia and Pathogenesis

Myopic Maculopathy, Progression and Visual Acuity Loss

Myopic Maculopathy and OCT

Myopia-Related Fundus Changes

References

Chapter XI: Myopia and Management

Abstract

Goals (AAO, 2007)

Patient Outcome Criteria (AAO, 2007)

1. Eyeglasses

Difficulties and Complications of Eyeglass Wear

Correction of Myopia with Spectacle Lenses: Basic Optics

Full Versus Partial Correction of Myopia

Myopic Progression and Spectacles

Effects of Spectacle Prescription on Accommodation

Presbyopia

Effects of Spectacle Prescription on Binocularity

Spectacle Design Considerations

2. Contact Lenses

Relative Contraindications

Complications

Selection and Fitting

Patient Education and Contact Lens Care

Follow-Up Examination and Contact Lens Replacement

3. Refractive Surgery for Myopia

Keratorefractive Surgery

Intraocular Refractive Surgery

References

Chapter XII: Myopia and Progression

Abstract

Prevention of Myopia Progression

1. Optical Correction

Single Vision Lenses

Bifocals and Progressive Addition Lenses

SVLs vs MLs

2. Topical Cycloplegic Agents

3. Pressure-Lowering Eyedrops

4. Contact Lenses

5. Other Treatments

Methylxanthine

Orthokeratology

Traditional Chinese Interventional Treatments

Other Considerartion

Undercorrection

Prevention

References

Glossary

Author’s Contact Information

Index

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