1. The 23rd edition of Parsons' Diseases of the Eye has several updates and additions compared to the 22nd edition, including:

   1. New chapters on Artificial Intelligence and Machine Learning in Ophthalmology, Teleophthalmology, and Global Burden of Eye Diseases.
   2. Revised and updated content on emerging topics such as gene therapy, immunology, and regenerative medicine in ophthalmology.
   3. Expanded information on the diagnosis and management of ocular surface disorders, such as dry eye disease and meibomian gland dysfunction.
   4. Updated and improved imaging techniques and their applications in ophthalmology, including Optical Coherence Tomography and Wide-field Imaging.
   5. The inclusion of recent clinical trials and their outcomes in various ophthalmic subspecialties, such as glaucoma, cataract, and retinal diseases.

   These updates and additions make the 23rd edition of Parsons' Diseases of the Eye a relevant and up-to-date resource for eye care professionals, providing the latest information on emerging topics and advancements in the field of ophthalmology.

1. "Parsons' Diseases of the Eye" is a reference book on ophthalmology written by Ramanjit Sihota and Radhika Tandon. The book covers various diseases and disorders of the eye, including their diagnosis and treatment. It also covers the anatomy and physiology of the eye in detail. The 23rd edition of the book was published in 2019. In addition to catering to the basic needs of postgraduate students and practitioners, it provides a comprehensive review of basic concepts and principles for the study of ophthalmology.

1. 1. Complexity: Some readers have found the book to be too dense and technical, making it challenging to follow for those without a strong background in ophthalmology.

   2. Lack of clarity: Some readers have found the writing style to be unclear or overly verbose, making it difficult to understand certain concepts.

   3. Limited focus: While the book covers a wide range of topics, some readers have felt that it focuses too heavily on certain areas of ophthalmology, such as surgery, and does not provide enough detail on other areas, such as pediatric ophthalmology.

   4. Outdated information: Some readers have noted that certain sections of the book may be outdated, particularly in areas where there have been significant advancements in recent years.

1. Parsons' Diseases of the Eye is a comprehensive textbook on the anatomy, physiology, and pathology of the eye. It is widely regarded as one of the most authoritative and practical ophthalmology textbooks available.

   The first edition was published in 1907 by Sir John Herbert Parsons, a British ophthalmologist, and since then, it has been revised and updated many times. The latest edition, the 23rd edition, was published in 2021 and is authored by Sihota and Tandon.

   The book is organized into 19 chapters, covering a range of topics including the anatomy and physiology of the eye, the diagnosis and management of various eye conditions, and the principles and techniques of eye surgery. The text is supported by numerous illustrations, photographs, and diagrams to aid understanding.

   The book also includes chapters on recent advances in ophthalmology, such as refractive surgery, retinal imaging, and gene therapy. It also includes a section on ocular emergencies and trauma.

   Overall, Parsons' Diseases of the Eye is an essential resource for ophthalmologists, optometrists, and other eye care professionals, providing a comprehensive overview of the eye and its disorders, as well as practical guidance on their diagnosis and management.

1. -Compliant with the new competency-based curriculum.

   -Inclusion of Learning Objectives at the beginning of each chapter.

   -Three new chapters titled Non-Traumatic Ophthalmic Emergencies, Dark Room Procedures, and Clinical investigations were added to help students get a clear understanding of these topics.

   -Additional topics: images on radiology and case studies on various ophthalmic procedures.

   -Latest information on astigmatism, dry eye, eye donation, eye banking, and various national programs has been provided.

   -Simplified flowcharts and new photographs covering a number of clinical conditions are added features.

   -Extensively revised and up-to-date with the new curriculum. 

     

     

Parsons' Diseases of the Eye is a renowned and comprehensive textbook on ophthalmology, covering topics such as the anatomy, physiology, and pathology of the eye, diagnosis and management of eye conditions, and eye surgery techniques. The book is supported by numerous illustrations and photographs to aid understanding, and it also includes chapters on recent advances in the field. Overall, the book is an essential resource for eye care professionals, providing practical guidance on the diagnosis and management of eye disorders.

Parsons' Diseases of the Eye is a highly respected and authoritative textbook on ophthalmology, providing a comprehensive overview of the anatomy, physiology, and pathology of the eye. It covers a wide range of topics including the diagnosis and management of various eye conditions, and the principles and techniques of eye surgery. The book is supported by numerous illustrations and photographs, aiding understanding and making it a valuable resource for ophthalmologists, optometrists, and other eye care professionals. The latest edition also includes updates on recent advances in the field, making it a relevant and up-to-date reference for those working in the field of ophthalmology. Overall, Parsons' Diseases of the Eye is an essential resource for anyone seeking a thorough understanding of the eye and its disorders.

It is an honour and pleasure to present yet another edition of 'parsons' Diseases of the Eye'. This classic textbook with its unique features provides a comprehensive compendium of information covering all the relevant aspects of ophthalmology for thorough knowledge of the subject. this 23rd edition has been updated keeping in view the changing disease spectrum, practics patterns and advancements in rechnology. We are happy that the MCI has provided an updated competency- based undergraduate curriculum which is to be rolled out in August 2019 and glad to provide the information that the contents of this book have been updated in compliance to fully cover all the aspects as prescribed. Additional information has been seamlessly integrated to provide a higher level of under-standing of ophthalmology for those with a higher level of interest such as medical students with special curiosity about the subject, postgraduate students to revise their own wish to refresh and update themselves. Core skills prescribed by the MCI are also adequately covered in the text and are supported by digital material. We hope you enjoy reading it and using the online resources to enrich yourselves as much as we did in preparing it for you.