KHURANA OPHTHALMOLOGY 4TH EDITION PDF
Comprehensive OPHTHALMOLOGY This page intentionally left blank Comprehensive OPHTHALMOLOGY Fourth Edition A K Khurana Professor, Regional. Comprehensive. OPHTHALMOLOGY. Fourth tio. Edi n. A K Khurana Fourth edition of the book has been thoroughly revised, updated, and published in an. Comprehensive Ophthalmology, 4th Edition: Medicine & Health A. K. Khurana (Author) Comprehensive Ophthalmology, 5th Edition.
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Download PDF Comprehensive Ophthalmology Fourth Edition by A K Khurana. Posted by Harapan Posted on with No comments · Click here to download . [PDF] New Perspectives on HTML, CSS, and XML, Comprehensive 4th Edition Dental Assisting: A Comprehensive Approach 4th Edition Brand New. ISBN ISBN * Comprehensive Ophthalmology 6th Edi. / Review of Ophthalmology 6th Ed.
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The importance of such views in improving the future editions of the book cannot be overemphasized. Feedbacks received shall be highly appreciated and duly acknowledged. Anatomy and Development of the Eye Physiology of Eye and Vision Optics and Refraction Diseases of the Conjunctiva Diseases of the Cornea Diseases of the Sclera Diseases of the Uveal Tract Diseases of the Lens Diseases of the Vitreous Diseases of the Retina Strabismus and Nystagmus Diseases of the Eyelids Diseases of the Lacrimal Apparatus Diseases of the Orbit Ocular Injuries Ocular Therapeutics, Lasers and Cryotherapy in Ophthalmology Systemic Ophthalmology Community Ophthalmology Clinical Methods in Ophthalmology Clinical Ophthalmic Cases Darkroom Procedures Ophthalmic Instruments and Operative Ophthalmology The detailed anatomy of different structures is described in the relevant chapters.
Although, generally referred to as a globe, the eyeball is not a sphere but an ablate spheroid.
The central point on the maximal convexities of the anterior and posterior curvatures of the eyeball is called the anterior and posterior pole, respectively. The equator of the eyeball lies at the mid plane between the two poles Fig.
Coats of the eyeball The eyeball comprises three coats: outer fibrous coat , middle vascular coat and inner nervous coat. Fibrous coat.
It is a dense strong wall which protects the intraocular contents. Cornea is set into sclera like a watch glass. Junction of the cornea and sclera is called limbus. Conjunctiva is firmly attached at the limbus. Vascular coat uveal tissue.
It supplies nutrition to the various structures of the eyeball. It consists of three parts which from anterior to posterior are : iris, ciliary body and choroid. Nervous coat retina. It is concerned with visual functions.
Segments and chambers of the eyeball Dimensions of an adult eyeball Anteroposterior diameter Horizontal diameter Vertical diameter Circumference Volume Weight z Formation of lens vesicle Formation of optic cup Changes in the associated mesoderm Development of various ocular structures Structures derived from the embryonic layers Important milestones in the development of the eye 24 mm Anterior segment.
It includes crystalline lens which is suspended from the ciliary body by zonules , and structures anterior to it, viz. Gross anatomy of the eyeball. It is bounded anteriorly by the back of cornea, and posteriorly by the iris and part of ciliary body.
The anterior chamber is about 2. It is shallower in hypermetropes and deeper in myopes, but is almost equal in the two eyes of the same individual. It contains about 0. Posterior chamber. It is a triangular space containing 0. It is bounded anteriorly by the posterior surface of iris and part of ciliary body, posteriorly by the crystalline lens and its zonules, and laterally by the ciliary body.
Posterior segment. It includes the structures posterior to lens, viz. Poles and equators of the eyeball.
Each eyeball is located in the anterior orbit, nearer to the roof and lateral wall than to the floor and medial wall.
Each eye is protected anteriorly by two shutters called the eyelids. The anterior part of the sclera and posterior surface of lids are lined by a thin membrane called conjunctiva.
For smooth functioning, the cornea and conjunctiva are to be kept moist by tears which are produced by lacrimal gland and drained by the lacrimal passages. Visceral mesoderm of maxillary process. Before going into the development of individual structures, it will be helpful to understand the formation of optic vesicle, lens placode, optic cup and changes in the surrounding mesenchyme, which play a major role in the development of the eye and its related structures.
The eyeball and its related structures are derived from the following primordia: z Optic vesicle,an outgrowth from prosencephalon a neuroectodermal structure , z Lens placode, a specialised area of surface ectoderm, and the surrounding surface ectoderm, z Mesenchyme surrounding the optic vesicle, and Fig.
Gross anatomy of the visual pathway.
Section of the orbital cavity to demonstrate eyeball and its accessory structures. Meanwhile the neural plate gets converted into prosencephalic vesicle. As the optic sulcus deepens, the walls of the prosencepholon overlying the sulcus bulge out to form the optic vesicle Figs.
The proximal part of the optic vesicle becomes constricted and elongated to form the optic stalk Figs. The surface ectoderm, overlying the optic vesicle becomes thickened to form the lens placode Fig.
It is soon separated from the surface ectoderm at 33rd day of gestation Fig. It appears from Fig. In fact conversion of the optic vesicle to the optic cup is due to differential growth of the walls of the vesicle. The margins of optic cup grow over the upper and lateral sides of the lens to enclose it.
However, such a growth does not take place over the inferior part of the lens, and therefore, the walls of the cup show deficiency in this part. Diseases of the Uveal Tract 8. Diseases of the Lens 9.
Glaucoma Diseases of the Vitreous Diseases of the Retina Neuro-Ophthalmology Strabismus and Nystagmus Diseases of the Eyelids Diseases of the Lacrimal Apparatus Diseases of the Orbit Ocular Injuries Ocular Therapeutics, Lasers and Cryotherapy in Ophthalmology Systemic Ophthalmology Community Ophthalmology Clinical Methods in Ophthalmology Clinical Ophthalmic Cases Darkroom Procedures Ophthalmic Instruments and Operative Ophthalmology 4.
Kirk N. Gelatt, Brian C.
Gilger, Thomas J. Kern Veterinary Ophthalmology: Two Volume Set 2 files Veterinary Ophthalmology, Fifth Edition is a fully updated version of the gold-standard reference for diseases and treatment of the animal eye in veterinary medicine.
AK Khurana Comprehensive Ophthalmology PDF Download [Direct Link]
With an internationally renowned list of contributing authors, the book has been revised and expanded to incorporate the most up-to-date research and information. New chapters cover ophthalmic genetics and DNA tests, microsurgery, photography, camelid ophthalmology, and rabbit ophthalmology, and existing chapters feature expanded coverage of noninvasive imaging techniques, feline ophthalmology, equine ophthalmology, and marine mammals and penguins.
The book retains its classic structure, with sections on basic vision sciences, the foundations of clinical ophthalmology, canine ophthalmology, and special ophthalmology, which encompasses specific coverage of most commonly treated species and chapters on neuro-ophthalmology and systemic diseases. A companion website offers the images from the book available for download in PowerPoint and the references linked to CrossRef.
Veterinary Ophthalmology remains the most comprehensive resource for authoritative information on veterinary ophthalmology worldwide and is a key reference for anyone interested in veterinary or comparative ophthalmology.
Williams Ophthalmology of Exotic Pets This quick reference handbook covers the diagnosis and treatment of eye disease in a range of exotic companion animal species, including rabbits, rodents, reptiles, birds, amphibians and fish.A companion website offers the images from the book available for download in PowerPoint and the references linked to CrossRef.
If you need help, the following are some posts that can greatly help you understand clinical methods.
Write a customer review. Diagnostic Ultrasound. Each chapter begins with a brief overview highlighting the topics covered, followed by relevant applied anatomy and physiology.
The detailed anatomy of different structures is described in the relevant chapters. Of incalculable assistance to me has been my wife Dr.
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