Misplaced Pages

Ophthalmology

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.

Ophthalmology ( / ˌ ɒ f θ æ l ˈ m ɒ l ə dʒ i / , OFF -thal- MOL -ə-jee ) is a clinical and surgical specialty within medicine that deals with the diagnosis and treatment of eye disorders. A former term is oculism .

#633366

56-495: An ophthalmologist is a physician who undergoes subspecialty training in medical and surgical eye care. Following a medical degree , a doctor specialising in ophthalmology must pursue additional postgraduate residency training specific to that field. This may include a one-year integrated internship that involves more general medical training in other fields such as internal medicine or general surgery. Following residency, additional specialty training (or fellowship) may be sought in

112-461: A chapter of the papyrus called the Book of Hearts. Disorders such as depression and dementia are covered. The descriptions of these disorders suggest that Egyptians conceived of mental and physical diseases in much the same way. The papyrus contains chapters on contraception, diagnosis of pregnancy and other gynecological matters, intestinal disease and parasites, eye and skin problems, dentistry,

168-594: A general ophthalmologist in the Philippines, a candidate must have completed a doctor of medicine degree (MD) or its equivalent (e.g. MBBS), have completed an internship in Medicine, have passed the physician licensure exam, and have completed residency training at a hospital accredited by the Philippine Board of Ophthalmology (accrediting arm of PAO). Attainment of board certification in ophthalmology from

224-526: A large textbook, The Polished Book on Experimental Ophthalmology , divided into two parts, On the Theory of Ophthalmology and Simple and Compounded Ophthalmic Drugs . Avicenna wrote in his Canon "rescheth", which means "retiformis", and Gerard of Cremona translated this at approximately 1150 into the new term "retina". In the seventeenth and eighteenth centuries, hand lenses were used by Malpighi , microscopes by Leeuwenhoek , preparations for fixing

280-448: A particular aspect of eye pathology. Ophthalmologists prescribe medications to treat ailments, such as eye diseases, implement laser therapy, and perform surgery when needed. Ophthalmologists provide both primary and specialty eye care—medical and surgical. Most ophthalmologists participate in academic research on eye diseases at some point in their training and many include research as part of their career. Ophthalmology has always been at

336-556: A residency in ophthalmology. Ophthalmologists typically perform optical, medical and surgical eye care. In Australia and New Zealand , the FRACO or FRANZCO is the equivalent postgraduate specialist qualification. The structured training system takes place over five years of postgraduate training. Overseas-trained ophthalmologists are assessed using the pathway published on the RANZCO website. Those who have completed their formal training in

392-407: A section is devoted to eye diseases. Prior to Hippocrates , physicians largely based their anatomical conceptions of the eye on speculation, rather than empiricism . They recognized the sclera and transparent cornea running flushly as the outer coating of the eye, with an inner layer with pupil, and a fluid at the centre. It was believed, by Alcamaeon (fifth century BC) and others, that this fluid

448-461: A surgical procedure. An eye surgeon is responsible for selecting the appropriate surgical procedure for the patient and for taking the necessary safety precautions. Ophthalmology includes subspecialities that deal either with certain diseases or diseases of certain parts of the eye. Some of them are: Medical retina and vitreo-retinal surgery sometimes are combined and together they are called posterior segment subspecialisation The Greek roots of

504-403: Is a non-invasive medical imaging technique for mapping the anterior curvature of the cornea , the outer structure of the eye . Ultrasonography of the eyes may be performed by an ophthalmologist. Eye surgery , also known as ocular surgery, is surgery performed on the eye or its adnexa by an ophthalmologist. The eye is a fragile organ, and requires extreme care before, during, and after

560-450: Is a professional degree admitted to those who have passed coursework in the fields of medicine and/or surgery from an accredited medical school . Obtaining a degree in medicine allows for the recipient to continue on into specialty training with the end goal of securing a license to practice within their respective jurisdiction. Medical graduates may also pursue non-clinical careers including those in basic research and positions within

616-422: Is a medical technological platform used to assess ocular structures. The information is then used by physicians to assess staging of pathological processes and confirm clinical diagnoses. Subsequent OCT scans are used to assess the efficacy of managing diabetic retinopathy, age-related macular degeneration, and glaucoma. Optical coherence tomography angiography (OCTA) and Fluorescein angiography to visualize

SECTION 10

#1732765652634

672-617: Is also considered the founding father of the German Ophthalmological Society. Numerous ophthalmologists fled Germany after 1933 as the Nazis began to persecute those of Jewish descent. A representative leader was Joseph Igersheimer (1879–1965), best known for his discoveries with arsphenamine for the treatment of syphilis. He fled to Turkey in 1933. As one of eight emigrant directors in the Faculty of Medicine at

728-451: Is also evidence of a long tradition of empiricism . The papyrus contains a "treatise on the heart". It notes that the heart is the centre of the blood supply, with vessels attached for every member of the body. The ancient Egyptians seem to have known little about the kidneys and made the heart the meeting point of a number of vessels which carried all the fluids of the body—blood, tears, urine and semen. Mental disorders are detailed in

784-439: Is assessed by both highly qualified Pakistani and eminent international ophthalmic consultants. As a prerequisite to the final examinations, an intermediate module, an optics and refraction module, and a dissertation written on a research project carried out under supervision is also assessed. Moreover, a two-and-a-half-year residency program leads to an MCPS while a two-year training of DOMS is also being offered. For candidates in

840-573: Is now called Moorfields Eye Hospital . Clinical developments at Moorfields and the founding of the Institute of Ophthalmology (now part of the University College London ) by Sir Stewart Duke-Elder established the site as the largest eye hospital in the world and a nexus for ophthalmic research. In Berlin, ophthalmologist Albrecht von Graefe introduced iridectomy as a treatment for glaucoma and improved cataract surgery, he

896-598: Is required after completing an MBBS degree. The postgraduate degree in ophthalmology is called medical doctor in ophthalmology. Currently, this degree is provided by Tilganga Institute of Ophthalmology, Tilganga, Kathmandu, BPKLCO, Institute of Medicine, TU, Kathmandu, BP Koirala Institute of Health Sciences, Dharan, Kathmandu University, Dhulikhel, and National Academy of Medical Science, Kathmandu. A few Nepalese citizens also study this subject in Bangladesh, China, India, Pakistan, and other countries. All graduates have to pass

952-653: Is required before eligibility to work in consultant posts. Some trainees take extra time to obtain MSc , MD or PhD degrees and to undertake clinical fellowships in the UK, Australia, and the United States. In Pakistan , after MBBS, a four-year full-time residency program leads to an exit-level FCPS examination in ophthalmology, held under the auspices of the College of Physicians and Surgeons, Pakistan. The tough examination

1008-783: Is undertaken. The residency typically lasts five years, which culminates in fellowship of the Royal College of Surgeons of Canada (FRCSC). Subspecialty training is undertaken by approximately 30% of fellows (FRCSC) in a variety of fields from anterior segment , cornea , glaucoma , vision rehabilitation , uveitis , oculoplastics , medical and surgical retina, ocular oncology , Ocular pathology , or neuro-ophthalmology . Approximately 35 vacancies open per year for ophthalmology residency training in all of Canada. These numbers fluctuate per year, ranging from 30 to 37 spots. Of these, up to ten spots are at French-speaking universities in Quebec. At

1064-658: The College of Ophthalmology and Allied Vision Sciences , in Lahore and the Pakistan Institute of Community Ophthalmology in Peshawar. Subspecialty fellowships also are being offered in the fields of pediatric ophthalmology and vitreoretinal ophthalmology. King Edward Medical University , Al Shifa Trust Eye Hospital Rawalpindi, and Al- Ibrahim Eye Hospital Karachi also have started a degree program in this field. In

1120-581: The German Egyptologist and novelist, Georg Ebers , after whom it is named. In 1875, Ebers published a facsimile with an English-Latin vocabulary and introduction. It was not until 1890, however, that it was translated by H. Joachim. In the early 1900s, Dr. Carl H. von Klein, alongside his daughter Edith Zitelmann, created a direct-to-English translation of the Ebers Papyrus. Ebers retired from his chair of Egyptology at Leipzig on

1176-824: The Kahun Gynaecological Papyrus ( c.  1800 BCE ), the Edwin Smith Papyrus ( c.  1600 BCE ), the Hearst papyrus ( c.  1600 BCE ), the Brugsch Papyrus ( c.  1300 BCE ), and the London Medical Papyrus ( c.  1300 BCE ), the Ebers Papyrus is among the oldest preserved medical documents. The Brugsch and the London Medical papyri share some of the same information as

SECTION 20

#1732765652634

1232-581: The Royal College of Surgeons of Edinburgh grant MRCOphth/FRCOphth and MRCSEd/FRCSEd, (although membership is no longer a prerequisite for fellowship), the Royal College of Glasgow grants FRCS. Postgraduate work as a specialist registrar and one of these degrees is required for specialization in eye diseases . Such clinical work is within the NHS, with supplementary private work for some consultants. Only 2.3 ophthalmologists exist per 100,000 population in

1288-648: The Royal College of Surgeons of Ireland grants membership (MRCSI (Ophth)) and fellowship (FRCSI (Ophth)) qualifications in conjunction with the Irish College of Ophthalmologists. Total postgraduate training involves an intern year, a minimum of three years of basic surgical training, and a further 4.5 years of higher surgical training. Clinical training takes place within public, Health Service Executive -funded hospitals in Dublin , Sligo , Limerick , Galway , Waterford , and Cork . A minimum of 8.5 years of training

1344-460: The University of Istanbul , he built a modern clinic and trained students. In 1939, he went to the United States, becoming a professor at Tufts University . German ophthalmologist, Gerhard Meyer-Schwickerath is widely credited with developing the predecessor of laser coagulation, photocoagulation. In 1946, Igersheimer conducted the first experiments on light coagulation. In 1949, he performed

1400-801: The healthcare industry . A worldwide study conducted in 2011 indicated on average: 64 university exams, 130 series exams, and 174 assignments are completed over the course of 5.5 years. As a baseline, students need greater than an 85% in prerequisite courses to enrol for the aptitude test in these degree programs. The MBBS is also awarded at the graduate level, meaning the applicant already has an undergraduate degree prior to commencing their medical studies (graduate entry). (Post-secondary) (Post-baccalaureate) (Post-baccalaureate) (Post-baccalaureate) or Bachelor of Medicine or MB, BM, BMed Some countries, especially Eastern European and former Soviet republics (Russia, Ukraine, Armenia) offer post-secondary, undergraduate, 6-year medical programs, which confer

1456-680: The tear ducts . The Indian surgeon Sushruta wrote the Sushruta Samhita in Sanskrit in approximately the sixth century BC, which describes 76 ocular diseases (of these, 51 surgical) as well as several ophthalmological surgical instruments and techniques. His description of cataract surgery was compatible with the method of couching . He has been described as one of the first cataract surgeons. Medieval Islamic Arabic and Persian scientists (unlike their classical predecessors) considered it normal to combine theory and practice, including

1512-440: The Ebers Papyrus include: One of the more common remedies described in the papyrus is ochre , or medicinal clay . It is prescribed for intestinal and eye complaints. Yellow ochre is also described as a remedy for urological complaints. The use of animal and insect repellents derived from plants and other organisms found in nature is known from the time of the Ebers Papyrus. Several examples of such repellents can be found in

1568-533: The Ebers Papyrus. One side of another document, the Carlsberg papyrus VIII , is identical to the Ebers Papyrus, though the provenance of the former is unknown. The Ebers Papyrus is written in hieratic Egyptian writing and represents the most extensive and best-preserved record of ancient Egyptian medicine known. The scroll contains some 700 magical formulas and folk remedies. It contains many incantations meant to turn away disease-causing demons and there

1624-686: The German Egyptologist Georg Ebers . It is currently kept at the Leipzig University Library in Germany . The papyrus was written in Ancient Egypt in c.  1550 BCE , during the late Second Intermediate Period or early New Kingdom , but it is believed to have been copied from earlier Egyptian texts. The Ebers Papyrus is a 110-page scroll, which is about 20 meters long. Along with

1680-486: The Greek philosopher of the second century AD gave a detailed description of cataract surgery by the couching method. The Greek physician Galen (second century AD) remedied some mistaken descriptions, including about the curvature of the cornea and lens, the nature of the optic nerve, and the existence of a posterior chamber . Although this model was a roughly correct modern model of the eye, it contained errors. Still, it

1736-551: The Nepal Medical Council Licensing Exam to become a registered ophthalmologists in Nepal. The concurrent residency training is in the form of a PG student (resident) at a medical college, eye hospital, or institution according to the degree providing university's rules and regulations. Nepal Ophthalmic Society holds regular conferences and actively promotes continuing medical education. In Ireland ,

Ophthalmology - Misplaced Pages Continue

1792-567: The PBO is essential in acquiring privileges in most major health institutions. Graduates of residency programs can receive further training in ophthalmology subspecialties, such as neuro-ophthalmology, retina, etc. by completing a fellowship program that varies in length depending on each program's requirements. In the United Kingdom , three colleges grant postgraduate degrees in ophthalmology. The Royal College of Ophthalmologists (RCOphth) and

1848-591: The Philippines, Ophthalmology is considered a medical specialty that uses medicine and surgery to treat diseases of the eye. There is only one professional organization in the country that is duly recognized by the PMA and the PCS: the Philippine Academy of Ophthalmology (PAO). PAO and the state-standard Philippine Board of Ophthalmology (PBO) regulates ophthalmology residency programs and board certification. To become

1904-548: The UK and have the CCST or CCT, usually are deemed to be comparable. In Bangladesh to be an ophthalmologist the basic degree is an MBBS. Then they have to obtain a postgraduate degree or diploma in an ophthalmology specialty. In Bangladesh, these are diploma in ophthalmology, diploma in community ophthalmology, fellow or member of the College of Physicians and Surgeons in ophthalmology, and Master of Science in ophthalmology. In Canada , after medical school an ophthalmology residency

1960-676: The UK – fewer pro rata than in any nations in the European Union. Ophthalmologists typically complete four years of undergraduate studies, four years of medical school and four years of eye-specific training (residency). Some pursue additional training, known as a fellowship - typically one to two years. Ophthalmologists are physicians who specialize in the eye and related structures. They perform medical and surgical eye care and may also write prescriptions for corrective lenses. They often manage late stage eye disease, which typically involves surgery. Medical degree A medical degree

2016-399: The crafting of precise instruments, and therefore, found it natural to combine the study of the eye with the practical application of that knowledge. Hunayn ibn Ishaq , and others beginning with the medieval Arabic period, taught that the crystalline lens is in the exact center of the eye. This idea was propagated until the end of the 1500s. Ibn al-Nafis , an Arabic native of Damascus, wrote

2072-430: The end of the five years, the graduating ophthalmologist must pass the oral and written portions of the Royal College exam in either English or French. In India , after completing MBBS degree, postgraduate study in ophthalmology is required. The degrees are doctor of medicine, master of surgery, diploma in ophthalmic medicine and surgery, and diplomate of national board. The concurrent training and work experience are in

2128-527: The eye for study by Ruysch , and later the freezing of the eye by Petit . This allowed for detailed study of the eye and an advanced model. Some mistakes persisted, such as: why the pupil changed size (seen to be vessels of the iris filling with blood), the existence of the posterior chamber , and the nature of the retina. Unaware of their functions, Leeuwenhoek noted the existence of photoreceptors, however, they were not properly described until Gottfried Reinhold Treviranus in 1834. Jacques Daviel performed

2184-441: The eye, not one. One tube from each eye met within the skull. The Greek physician Rufus of Ephesus (first century AD) recognised a more modern concept of the eye, with conjunctiva , extending as a fourth epithelial layer over the eye. Rufus was the first to recognise a two-chambered eye, with one chamber from cornea to lens (filled with water), the other from lens to retina (filled with a substance resembling egg whites). Celsus

2240-496: The eyes or eyelids. The first ophthalmic surgeon in the UK was John Freke , appointed to the position by the governors of St. Bartholomew's Hospital in 1727. A major breakthrough came with the appointment of Baron de Wenzel (1724–90), a German who became the oculist to King George III of Great Britain in 1772. His skill at removing cataracts legitimized the field. The first dedicated ophthalmic hospital opened in 1805 in London; it

2296-586: The first documented planned primary cataract extraction on Sep. 18, 1750 in Cologne. Georg Joseph Beer (1763–1821) was an Austrian ophthalmologist and leader of the First Viennese School of Medicine. He introduced a flap operation for treatment of cataract (Beer's operation), as well as having popularized the instrument used to perform the surgery (Beer's knife). In North America, indigenous healers treated some eye diseases by rubbing or scraping

Ophthalmology - Misplaced Pages Continue

2352-457: The first successful treatment of a retinal detachment with a light beam (light coagulation) with a self-constructed device on the roof of the ophthalmic clinic at the University of Hamburg-Eppendorf . Polish ophthalmology dates to the thirteenth century. The Polish Ophthalmological Society was founded in 1911. A representative leader was Adam Zamenhof (1888–1940), who introduced certain diagnostic, surgical, and nonsurgical eye-care procedures. He

2408-607: The forefront of medical research with a long history of advancement and innovation in eye care. A brief list of some of the most common diseases treated by ophthalmologists: The most valued pharmaceutical companies worldwide whose leading products are in Ophthalmology are Regeneron (United States) for Macular degeneration (AMD) treatment and Bausch Health (Canada) for Front of eye. Following are examples of examination methods performed during an eye examination that enables diagnosis Optical coherence tomography (OCT)

2464-587: The form of a junior residency at a medical college, eye hospital, or institution under the supervision of experienced faculty. Further work experience in the form of fellowship, registrar, or senior resident refines the skills of these eye surgeons. All members of the India Ophthalmologist Society and various state-level ophthalmologist societies hold regular conferences and actively promote continuing medical education. In Nepal , to become an ophthalmologist, three years of postgraduate study

2520-440: The front and the back of the human eye. The resulting signal is called the electrooculogram. Primary applications are in ophthalmological diagnosis and in recording eye movements . Visual field testing to detect dysfunction in central and peripheral vision which may be caused by various medical conditions such as glaucoma , stroke , pituitary disease , brain tumours or other neurological deficits. Corneal topography

2576-578: The military, a stringent two-year graded course, with quarterly assessments, is held under Armed Forces Post Graduate Medical Institute in Rawalpindi. The M.S. in ophthalmology is also one of the specialty programs. In addition to programs for physicians, various diplomas and degrees for allied eyecare personnel are also being offered to produce competent optometrists, orthoptists, ophthalmic nurses, ophthalmic technologists, and ophthalmic technicians in this field. These programs are being offered, notably by

2632-554: The surgical treatment of abscesses and tumors, bone-setting, and burns. The "channel theory" was prevalent at the time of writing of the Ebers papyrus; it suggested that unimpeded flow of bodily fluids is a prerequisite for good health. The Ebers papyrus may be considered a precursor of ancient Greek humeral pathology and the subsequently established theory of humorism , providing a historical connection between ancient Egypt, ancient Greece, and medieval medicine. Examples of remedies in

2688-468: The text. In the time of Amenhotep I a calendar table was written on the verso side of the papyrus. Since 1906 we have a transcript by Kurt Sethe. Some rate this table to be "the most valuable chronological tool from Egypt that we are ever likely to possess". Like the Edwin Smith Papyrus , the Ebers Papyrus came into the possession of Edwin Smith in 1862. The source of the papyrus is unknown, but it

2744-421: The title Doctor of Medicine as their medical qualification. Ebers Papyrus The Ebers Papyrus , also known as Papyrus Ebers , is an Egyptian medical papyrus of herbal knowledge dating to c.  1550 BC (the late Second Intermediate Period or early New Kingdom ). Among the oldest and most important medical papyri of Ancient Egypt , it was purchased at Luxor in the winter of 1873–1874 by

2800-408: The vascular networks of the retina and choroid. Electroretinography (ERG) measures the electrical responses of various cell types in the retina , including the photoreceptors ( rods and cones ), inner retinal cells ( bipolar and amacrine cells), and the ganglion cells . Electrooculography ( EOG ) is a technique for measuring the corneo-retinal standing potential that exists between

2856-479: The word ophthalmology are ὀφθαλμός ( ophthalmos , "eye") and -λoγία (- logia , "study, discourse"), i.e., "the study of eyes". The discipline applies to all animal eyes, whether human or not, since the practice and procedures are quite similar with respect to disease processes, although there are differences in the anatomy or disease prevalence. In the Ebers Papyrus from ancient Egypt dating to 1550 BC,

SECTION 50

#1732765652634

2912-419: Was a polymath who made contributions to many fields of science and invented the ophthalmoscope in 1851. They both made theoretical calculations on image formation in optical systems and also had studied the optics of the eye. Ophthalmologists are physicians ( MD/DO in the U.S. or MBBS in the UK and elsewhere or DO /DOMS/DNB, who typically complete an undergraduate degree, general medical school, followed by

2968-673: Was executed by the German Nazis in 1940. Zofia Falkowska (1915–93) head of the Faculty and Clinic of Ophthalmology in Warsaw from 1963 to 1976, was the first to use lasers in her practice. The prominent physicists of the late nineteenth and early twentieth centuries included Ernst Abbe (1840–1905), a co-owner of at the Zeiss Jena factories in Germany, where he developed numerous optical instruments. Hermann von Helmholtz (1821–1894)

3024-453: Was not advanced upon again until after Vesalius . A ciliary body was then discovered and the sclera, retina, choroid, and cornea were seen to meet at the same point. The two chambers were seen to hold the same fluid, as well as the lens being attached to the choroid. Galen continued the notion of a central canal, but he dissected the optic nerve and saw that it was solid. He mistakenly counted seven optical muscles, one too many. He also knew of

3080-515: Was said to have been found between the legs of a mummy in the El-Assasif district of the Theban necropolis . The papyrus remained in the collection of Edwin Smith until at least 1869, when there appeared—in the catalog of an antiquities dealer—an advertisement for "a large medical papyrus in the possession of Edwin Smith, an American farmer of Luxor ." The papyrus was purchased in 1872 by

3136-438: Was the medium of vision and flowed from the eye to the brain by a tube. Aristotle advanced such ideas with empiricism. He dissected the eyes of animals, and discovering three layers (not two), found that the fluid was of a constant consistency with the lens forming (or congealing) after death, and the surrounding layers were seen to be juxtaposed. He and his contemporaries further put forth the existence of three tubes leading from

#633366