This book explains the underlying rationale for retinal and choroidal imaging in the context of systemic diseases. Various systemic diseases involve the eyes, and for some, the eyes could provide the first clue to their presence. Advances in posterior segment imaging have significantly improved our understanding of the pathophysiology and management of posterior segment diseases. However, imaging techniques like enhanced depth imaging, oximetry, adaptive optics, and retinal blood flowmetry have remained largely unexplored in connection with systemic diseases. Enhancing the available literature on the use of such imaging techniques for various systemic diseases, this handbook will help readers understand their pathomechanisms, supporting early diagnosis and more targeted therapeutic approaches. As such, it offers an essential resource for ophthalmologists, especially those with predominantly vitreo-retinal and uvea experience.

This text presents current information on retinal and choroidal manifestations of systemic diseases from leading experts in the field. Topics include retinal and choroidal manifestations of AIDS, pediatric diseases, toxicity of systemic drugs, diseases of the gastrointestinal tract, diffuse unilateral subacute neuroretinitis (DUSN), viral and fungal diseases, sarcoidosis, Behçet's disease, carotid artery and renal diseases, changes related to pregnancy, intraocular lymphoma, and more. Their knowledge and experience will assist ophthalmologists, retina specialists, uveitis and ocular oncology specialists, and general physicians approach a level of knowledge about retinal and choroidal manifestations of systemic diseases to benefit patients in everyday clinical practice.

Retinal and choroidal vasculatures are easily affected by various systemic diseases, and changes in the retina can easily be observed with various procedures such as direct and indirect ophthalmoscopy, scanning laser ophthalmoscopy, fluorescein fundus angiography, and indocyanin green fundus angiography. Vascular changes are the major, most prominent, and most important fundus changes. The above-mentioned procedures can reveal vascular changes clearly, but mainly reveal changes in the superficial layer of the retina. In addition, these procedures cannot show the three-dimensional architecture of the retina. Usually we can barely obtain the view of that three dimensional architecture. At the same time, pathological findings are well described, but most of them are based on histological and cytological methods. Thus, three-dimensional description of pathology is rare. Vascular corrosion cast scanning electron microscopy can provide a very useful three-dimensional view of the microvasculature and can demonstrate the fine structural architecture of the capillary network. However, the application of this method to the retinal and choroidal vasculature is very difficult, especially in small eyes. We succeeded in making good corrosion casts of retinal and choroidal vessels in the rat. Using this method during the past 10 years we have examined the retinal and choroidal vascular architecture of rats with various systemic diseases such as aging, hypertension, diabetes mellitus, and arteriosclerosis.

Choroidal Disorders provides an overview on various chorioretinal disorders with a special emphasis on choroidal imaging. As our understanding of the choroid has significantly improved with the development of advanced optical coherence tomography (OCT) and its role in posterior segment diseases is gaining new significance, this book focuses on the related improvements, diagnostic capabilities, management and prognosis of various chorioretinal disorders. It covers conventional techniques, such as ultrasonography and indocyanine green angiography as well as the most advanced techniques, including enhanced depth imaging OCT, swept source OCT, and OCT angiography. Concise overview of various chorioretinal disorders, with special emphasis on choroidal imaging Written for practitioners and researchers in sensory systems (vision), ophthalmologists, and retina specialists Covers the most advanced imaging techniques in choroidal disorders, such as enhanced depth imaging OCT, swept source OCT, and OCT angiography

Vascular changes that occur in the human retina and choroid have frequently been studied through the use of light microscopy. This technique has marked limitations, however, in that it shows changes only in limited localized sites, often with the effects of various systemic diseases indistinguishable. Newer techniques of corrosion cast scanning electron microscopy and transmission electron microscopy provide a much clearer three-dimensional view of retinal and choroidal vasculatures, the results of which will be useful for the interpretation of ocular fundus changes seen in individual systemic diseases. Retinal and choroidal vascular changes due to aging, arteriosclerosis, spontaneous hypertension, and diabetes mellitus in the rat have been investigated and are described in this book, which will be of interest to those in the fields of ophthalmology, anatomy, and pathology. This book is a leading source of information on the use of electron microscopy in a new field of interest. .

Many systemic disorders manifest themselves in the retina and choroid. This book gives coverage of common and uncommon disorders, offering practical information to the ophthalmologist and specialists in other fields.

The classic reference covering the diagnosis and treatment of all major ophthalmic diseases, as well as neurological and systemic diseases causing visual disturbance-extensively revised and updated Features State-of-the-art coverage of diagnostic techniques and therapeutic interventions for the full range of ophthalmic disorders Chapters dedicated to ophthalmic therapeutics, neuro-ophthalmology, ocular disorders associated with systemic diseases, immunologic diseases of the eye, pediatrics, genetics, preventive ophthalmology and lasers The latest clinical perspectives on such topics as: Treatments for age-related macular degeneration, including anti-VEGF therapies Intraocular steroid injections for retinal diseases Immunomodulatory drugs Treatment of corneal infections Medical and surgical treatments for glaucoma Detailed appendices on visual standards, practical factors in illumination, rehabilitation of the visually handicapped, and special services available to the blind Latest references