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1.
Ophthalmologie ; 121(7): 554-564, 2024 Jul.
Article in German | MEDLINE | ID: mdl-38801461

ABSTRACT

PURPOSE: In recent years artificial intelligence (AI), as a new segment of computer science, has also become increasingly more important in medicine. The aim of this project was to investigate whether the current version of ChatGPT (ChatGPT 4.0) is able to answer open questions that could be asked in the context of a German board examination in ophthalmology. METHODS: After excluding image-based questions, 10 questions from 15 different chapters/topics were selected from the textbook 1000 questions in ophthalmology (1000 Fragen Augenheilkunde 2nd edition, 2014). ChatGPT was instructed by means of a so-called prompt to assume the role of a board certified ophthalmologist and to concentrate on the essentials when answering. A human expert with considerable expertise in the respective topic, evaluated the answers regarding their correctness, relevance and internal coherence. Additionally, the overall performance was rated by school grades and assessed whether the answers would have been sufficient to pass the ophthalmology board examination. RESULTS: The ChatGPT would have passed the board examination in 12 out of 15 topics. The overall performance, however, was limited with only 53.3% completely correct answers. While the correctness of the results in the different topics was highly variable (uveitis and lens/cataract 100%; optics and refraction 20%), the answers always had a high thematic fit (70%) and internal coherence (71%). CONCLUSION: The fact that ChatGPT 4.0 would have passed the specialist examination in 12 out of 15 topics is remarkable considering the fact that this AI was not specifically trained for medical questions; however, there is a considerable performance variability between the topics, with some serious shortcomings that currently rule out its safe use in clinical practice.


Subject(s)
Educational Measurement , Ophthalmology , Specialty Boards , Ophthalmology/education , Educational Measurement/methods , Educational Measurement/standards , Germany , Humans , Clinical Competence/standards , Certification , Artificial Intelligence
3.
BMC Pediatr ; 19(1): 353, 2019 10 15.
Article in English | MEDLINE | ID: mdl-31615465

ABSTRACT

BACKGROUND: Incontinentia Pigmenti is a rare disease affecting multiple organs. Fifty of patients show affection of the eye with retinopathy and possible amaurosis being the worst outcome. Treatment has commonly been panretinal laser coagulation but intravitreal application of bevacizumab as VEGF-inhibitor has shown to effectively suppress retinal neovascularization. CASE PRESENTATION: A six-week-old female infant with Incontinentia Pigmenti developed a foudroyant necrotizing enterocolitis shortly after intravitreal injection of bevazicumab due to a retinopathy with impending tractional detachment of the left eye. Since the onset of abdominal symptoms occurred immediately after the intravitreal application, a link between the two events seemed likely. Sequential analyses of the VEGF serum concentrations showed a massive suppression of endogenous VEGF with only a very slow recovery over weeks. Such a severe systemic adverse event has not been reported after intravitreal treatment with bevacizumab in an infant. CONCLUSION: This case report shows a relevant systemic uptake of bevacizumab after intravitreal application as suppressed VEGF levels show. There seems to be a connection between suppressed VEGF levels and the onset of necrotizing enterocolitis. Therefore, treatment with bevacizumab should be carefully considered and further research is needed to assess this drug's safety profile.


Subject(s)
Angiogenesis Inhibitors/adverse effects , Bevacizumab/adverse effects , Enterocolitis, Necrotizing/chemically induced , Incontinentia Pigmenti/drug therapy , Angiogenesis Inhibitors/administration & dosage , Bevacizumab/administration & dosage , Female , Humans , Infant , Intravitreal Injections
4.
Ophthalmologe ; 116(4): 391-404, 2019 Apr.
Article in German | MEDLINE | ID: mdl-30888470

ABSTRACT

Amblyopia is a visual deficit that occurs during childhood and results in an abnormal development of the normal cortical visual pathway. It is defined as the reduction of best corrected visual acuity of one or rarely both eyes, which is not explained by structural abnormalities of the eye alone. During the sensitive period amblyopia is completely or partially reversible. The main causes of amblyopia are strabismus and refractive errors. Congenital cataracts are less common but if present may cause pronounced amblyopia. In Germany the prevalence of Amblyopia is approximately 5%, which is relatively high in relation to other countries, even though data are not completely comparable. As amblyopia can only be successfully treated during the first years of life, early detection of amblyogenic factors is important. Screening tests help in identifying children at risk of amblyopia, while only a thorough ophthalmological examination including cycloplegic refraction reliably detects all risk factors of amblyopia. Treatment consists of removal of the amblyogenic factors and stimulation of the amblyopic eye.


Subject(s)
Amblyopia , Refractive Errors , Strabismus , Child , Germany , Humans , Visual Acuity
5.
Ophthalmologe ; 116(4): 357-363, 2019 Apr.
Article in German | MEDLINE | ID: mdl-29589149

ABSTRACT

BACKGROUND: Globally, the majority of visually impaired persons live in low- and middle-income countries. One of the reasons is a lack of ophthalmologists in the respective countries. Migration of qualified personnel would be an additional strain on ophthalmological patient care. OBJECTIVE: This analysis aimed at evaluating the attitude of African residents in ophthalmology towards working in their home country or migrating abroad and comparing these findings with existing data also with respect to possible interventions. MATERIAL AND METHODS: In 2016 and 2017, participants of ophthalmological training courses for residents in Dar es Salaam (Tanzania) and Addis Ababa (Ethiopia) as well as residents from Moshi (Tanzania) were interviewed on possible migration with the help of a questionnaire. RESULTS: In total 60 questionnaires were analyzed. The main reasons for staying in the home country were: "want to support/serve community", "family" as well as "high demand of specialists". Prime motives for possible migration were: "better income", "better working structure/equipment" and "better education". CONCLUSION: Links between German and African eye hospitals as they are supported, for example by the working group International Ophthalmology of the German Ophthalmological Society (DOG) and the German Committee for the Prevention of Blindness (DKVB), can contribute to improve some of the main reasons of migration, such as insufficient education, working structures and equipment and thus help to prevent a brain drain.


Subject(s)
Emigration and Immigration , Ophthalmology , Attitude of Health Personnel , Ethiopia , Humans , Tanzania
6.
Ophthalmologe ; 114(9): 794-803, 2017 Sep.
Article in German | MEDLINE | ID: mdl-28849341

ABSTRACT

In 1999 the global initiative "Vision 2020 - The Right to Sight" was established by the World Health Organization (WHO), the International Agency for the Prevention of Blindness (IAPB) and several non-governmental organizations (NGOs) with the goal of reducing avoidable blindness. Based on this initiative, the working group "International Ophthalmology" of the German Ophthalmological Society (DOG), which was established in 1994, was converted into a DOG section with the same name in 2004 and represents one of the core components of the DOG; however, even before there were a number of established partnerships of German and African eye hospitals. The first cooperation of this kind was the partnership between the Department of Ophthalmology, Ludwig-Maximilians University Munich and the University of Nairobi, Kenya, which was founded in 1978. As a result of this cooperation, the Department of Ophthalmology in Nairobi has evolved into one of the major centers of ophthalmological training and ophthalmic care in East Africa. Since then a number of similar cooperation projects between several hospitals and numerous further projects (e. g. in Myanmar) have been implemented and some of these are presented in this manuscript.


Subject(s)
Blindness/prevention & control , Developing Countries , Global Health/trends , Hospitals, Special/trends , Ophthalmology/trends , Societies, Medical/trends , Forecasting , Germany , Humans , Organizations/trends , World Health Organization
7.
Klin Monbl Augenheilkd ; 232(3): 257-65, 2016 Mar.
Article in German | MEDLINE | ID: mdl-27011030

ABSTRACT

Optic disc drusen are an important differential diagnosis in the diagnostic evaluation of a prominent optic nerve head. Drusen of the optic disc occur in 0.34 to 2.4 % of human individuals and manifest themselves bilaterally in three of four cases. Drusen are found six times more often within histological sections than on funduscopic examination. It is known that optic disc drusen can occur in familial clusters without any other pathological ophthalmic findings. They can also be associated with retinitis pigmentosa, or with the Joubert or Alagille syndromes. Non-invasive diagnostic tools include fundus-autofluorescence (AF), optical coherence tomography (OCT) and ultrasound. Drusen of the optic nerve head are asymptomatic in most cases, though transient ischemia can lead to transient visual impairment. In particular, superficial drusen can lead to profound visual field defects in adulthood. Regular ophthalmological follow-up examinations with tonometry and perimetry are recommended for the early detection of visual field defects. Radial optic neurotomy (RON) seems to be a therapeutic option in patients with acute deterioration of the visual field.


Subject(s)
Optic Disk Drusen/diagnosis , Optic Disk Drusen/genetics , Retinal Diseases/diagnosis , Retinal Diseases/genetics , Retinal Diseases/therapy , Diagnosis, Differential , Eye Proteins/genetics , Genetic Markers/genetics , Genetic Predisposition to Disease/genetics , Humans , Optic Disk Drusen/therapy
8.
Ophthalmologe ; 113(1): 83-94, 2016 Jan.
Article in German | MEDLINE | ID: mdl-26631047

ABSTRACT

Medical eye care in developing countries is very different from the situation in industrialized nations. In order to prevent rising numbers of blind people worldwide due to increased life expectancy and population growth, the global initiative Vision 2020 "The Right to Sight" was established in 1999. Coordinated initiatives are important as most causes of blindness are either preventable or curable (e.g. cataract surgery); however, due to a lack of resources eye care in developing countries cannot implement all necessary preventive and therapeutic measures at present. The epidemiology of causes of blindness and the situation of ophthalmic care are discussed. Because of increased mobility of people and goods (e.g. air travel and trucking), imported eye diseases are of increasing importance. The difference between travel medicine, which deals with the medical situation of travelers and international ophthalmology (i.e. diseases in tropical countries) is discussed and illustrated on the basis of several important disease patterns.


Subject(s)
Eye Diseases/diagnosis , Eye Diseases/therapy , Global Health/trends , Ophthalmology/trends , Travel Medicine/trends , Travel/trends , Humans
9.
Ophthalmologe ; 113(1): 35-46, 2016 Jan.
Article in German | MEDLINE | ID: mdl-26649438

ABSTRACT

A number of "new" (emerging) infections that can also cause inflammatory eye changes are appearing and becoming increasingly important. In the past, diseases such as chikungunya, dengue fever or West Nile virus infections were endemic in tropical regions, but are now expanding worldwide and causing significant morbidity and even mortality. "Globalization" and human migration are important factors leading to the import of these infections. Climate changes are probably even more important. Increasing temperatures provide suitable conditions for new vectors, and may lead to autochthonous transmission of infectious pathogens. Diagnosis of these diseases requires not only careful assessment of medical and travel history, but also the application of specific laboratory diagnostic tests. A broad spectrum of ocular involvement has been reported, with frequent posterior segment involvement. Emerging infections should therefore be considered in the differential diagnosis of retinitis, chorioretinitis, retinal vasculitis and optic neuropathy in a patient living in or traveling back from an endemic area. Since these infections are often vector (insect) borne and effective treatments are almost uniformly lacking, prevention is at least as important as prompt diagnosis and initiation of supportive care. Here, we focus on Chikungunya, Dengue fever, Ebola fever, the West Nile virus and Rickettsioses, which frequently demonstrate ocular involvement.


Subject(s)
Communicable Diseases, Emerging/diagnosis , Endophthalmitis/diagnosis , Endophthalmitis/therapy , Eye Infections/diagnosis , Eye Infections/therapy , Travel/trends , Communicable Diseases, Emerging/epidemiology , Communicable Diseases, Emerging/therapy , Endophthalmitis/epidemiology , Eye Infections/epidemiology , Germany , Humans , Ophthalmology/trends , Tropical Climate , Tropical Medicine/trends
10.
Klin Monbl Augenheilkd ; 232(3): 266-74, 2015 Mar.
Article in German | MEDLINE | ID: mdl-25803555

ABSTRACT

BACKGROUND: The peripherin-2 (PRPH2) gene encodes a photoreceptor-specific transmembrane-protein called peripherin-2 which is critical for the formation and maintenance of rod and cone outer segments. Over 90 different disease-causing mutations in PRPH2 have been identified which cause a variety of forms of macular degeneration and also retinopathia pigmentosa. PATIENTS/MATERIAL AND METHODS: This study is a retrospective observational study of 3 patients ascertained over a 5 month period in the ophthalmogenetic consultation of the university ophthalmic clinic. So far, the patients were followed for 8 months at least. Data examined included clinical history, pedigree analysis, ophthalmological examination, fundus photography, autofluorescence imaging, optical coherence tomography, Arden colour test, Goldmann perimetry and detailed electrophysiological assessment. Blood samples were taken for DNA extraction and mutation analysis of PRPH2 and ABCA4, BEST1, C1QTNF5, CDH3, CNGB3, ELOVL4, FSCN2, PROM1, RDH12, RP1L1, RPGR, TIMP3 was performed. RESULTS: All patients had presented with clinically evident maculopathy and visual acuities in the range of 1/50 Metervisus to 0.8 p [dec.]. All had specific electroretinogrammes. All PRPH2 mutations were autosomal dominant. One family was heterozygous for a previously reported missense mutation in the PRPH2 gene c.514C>T, p.R172W. The other patient was heterozygous for a so far non-described PRPH2 deletion and frameshift mutation c.74_77delGGTT, p.W25SfsX12 leading most likely to a truncated, dysfunctional protein. All patients showed a significant, inter-individual phenotypical variability. CONCLUSION: The data add to the documented phenotypical variability of PRPH2 mutations and describe the c.74_77delGGTT, p.W25SfsX12 mutation within PRPH2 for the first time. FAF, OCT and electrophysiological exams are helpful tools for diagnosis and evaluation of macular disease due to PRPH2 mutations.


Subject(s)
Genetic Predisposition to Disease/genetics , Genetic Testing/methods , Macular Degeneration/diagnosis , Macular Degeneration/genetics , Peripherins/genetics , Adult , Female , Genetic Markers/genetics , Genotype , Humans , Male , Middle Aged , Mutation/genetics , Polymorphism, Single Nucleotide/genetics , Statistics as Topic
11.
Klin Monbl Augenheilkd ; 232(3): 275-80, 2015 Mar.
Article in German | MEDLINE | ID: mdl-25803556

ABSTRACT

Knowledge about hereditary eye diseases has been substantially increased by means of genetic testing during the last decade. This has resulted in a new classification of a number of disease patterns, which are characterised by non-progressive restrictive disorders of the oculomotor system, formerly classified as "congenital fibrosis syndromes". Based on the results of genetic testing, these ocular motility disorders are now referred to as "congenital cranial dysinnervation disorders" (CCDDs). They are caused by an impaired innervation of extraocular muscles because of a dysgenesis of the nuclei of the affected cranial nerves in the brainstem and pons and not by primary fibrosis of the extraocular muscles. In this review, congenital fibrosis of the extraocular muscles (CFEOM), Duane syndrome, horizontal gaze palsy with progressive scoliosis, congenital ptosis and Moebius syndrome are presented and basic principles of intracellular transport mechanisms and kinesins are discussed.


Subject(s)
Genetic Predisposition to Disease/genetics , Genetic Testing/methods , Models, Genetic , Molecular Diagnostic Techniques/methods , Eye Diseases, Hereditary/diagnosis , Eye Diseases, Hereditary/genetics , Fibrosis , Genetic Markers/genetics , Humans , Ophthalmoplegia , Polymorphism, Single Nucleotide/genetics
12.
Ophthalmologe ; 112(3): 255-60, 2015 Mar.
Article in German | MEDLINE | ID: mdl-25378130

ABSTRACT

BACKGROUND: In industrialized nations a curative therapy of retinoblastoma can be achieved in a large number of patients due to timely diagnosis and therapy. In developing countries the survival rates are much lower and very little data have been published especially from Africa. OBJECTIVES: This study was performed to investigate the survival and prognostic factors of retinoblastoma patients admitted to Kenyatta National Hospital, the national referral hospital in Kenya. MATERIAL AND METHODS: In this study all records of patients admitted with retinoblastoma from January 2000 to December 2004 were reviewed. Demographic data, clinical presentation, intraoperative findings and histology reports were recorded and the patients or their relatives were contacted during follow-up to investigate the outcome and survival. RESULTS: Files of 160 patients (86 males and 74 females) were retrieved for this study. Data on 3-year survival could be acquired from 105 patients and the cumulative 3-year survival rate was 26.6 %. Factors significantly influencing survival were age at presentation less than 12 months, early disease at presentation (leukocoria only), no extraocular growth and total delay of management ≤ 5 months. Proptosis and tumor recurrence were associated with a 3-year mortality of 100 %. CONCLUSION: The main reasons for poor outcome were late presentation and recurrent disease after initial treatment elsewhere, extraocular growth and delay between initial presentation and treatment. Awareness of the public and of healthcare workers should be increased in order to reduce the time delay until diagnosis and treatment.


Subject(s)
Delayed Diagnosis/mortality , Neoplasm Recurrence, Local/mortality , Retinal Neoplasms/mortality , Retinal Neoplasms/therapy , Retinoblastoma/mortality , Retinoblastoma/therapy , Adolescent , Adult , Age Distribution , Aged , Aged, 80 and over , Child , Child, Preschool , Female , Humans , Infant , Infant, Newborn , Kenya/epidemiology , Male , Middle Aged , Neoplasm Recurrence, Local/prevention & control , Prevalence , Prognosis , Retinal Neoplasms/diagnosis , Retinoblastoma/diagnosis , Risk Factors , Survival Rate , Young Adult
13.
Ophthalmologe ; 112(5): 429-34, 2015 May.
Article in German | MEDLINE | ID: mdl-25316300

ABSTRACT

BACKGROUND: The shortage of ophthalmologists is a major obstacle in the struggle of fighting preventable blindness in sub-Saharan Africa. However, to date reasons affecting migration of ophthalmologists have not been completely understood. OBJECTIVES: Evaluation of reasons reported by ophthalmologists for staying in their current work setting/country, of potential reasons for migration as well as of effects of German-African partnerships. MATERIAL AND METHODS: In the years 2009-2011 and 2013 participants of continuous medical education courses in Ethiopia, Cameroon and Kenya were interviewed using a standardized questionnaire. RESULTS: A total of 106 ophthalmologists participated in this survey. In the years 2009/2010 participants were mainly board certified ophthalmologists, while the 2011/2013 surveys were answered mainly by residents. The main reasons for staying in their current region/country were good working conditions, commitment to help/patriotism, possibility of further training, good income and familial ties. Professional development elsewhere and better income abroad were named as the main reasons for considering migration followed by better technical equipment elsewhere and insecurity in the home country. CONCLUSION: Good working conditions and the possibility of further training were named as the top reasons for staying in the current region/country apart from commitment to help and familial ties. Therefore, international cooperation programs aiming at improving training of ophthalmologists and establishing an ophthalmic infrastructure may have a role in promoting ophthalmic care in Africa.


Subject(s)
Attitude of Health Personnel , Career Mobility , Emigration and Immigration/statistics & numerical data , Job Satisfaction , Ophthalmology , Workload/statistics & numerical data , Adult , Africa South of the Sahara/epidemiology , Aged , Female , Humans , Male , Middle Aged , Ophthalmology/statistics & numerical data , Physicians/psychology , Physicians/statistics & numerical data , Surveys and Questionnaires , Work Schedule Tolerance/psychology , Workforce
17.
Ophthalmologe ; 109(8): 782-7, 2012 Aug.
Article in German | MEDLINE | ID: mdl-22733287

ABSTRACT

PURPOSE: The study was designed to prospectively evaluate the bacterial contamination of needles used for intravitreal injection during surgery. MATERIAL AND METHODS: Between December 2007 and December 2010, 549 eyes of 413 patients were treated with intravitreal injections of 1.25 mg bevacizumab. Of the patients 322 received a single injection and 91 multiple injections. Preoperatively the periorbital skin of all patients was treated with 10% povidone iodine (PVI) and the conjunctival sac was irrigated with 1% PVI. No pre-injection antibiotics were administered. Immediately after the injection the needles were rinsed 3 times in thioglycolate broth which was then cultured at 37°C for 5 days. As a negative control 73 sterile unused needles were treated in the same way. RESULTS: Out of the 549 needle points tested 8 (1,45%) were found to be contaminated after intravitreal injections. The isolated bacteria were coagulase negative Staphylococcus (n = 7), Propionibacterium acnes (n = 1) and Klebsiella pneumoniae (n = 1) (co-contamination in one case). CONCLUSION: Contamination of needles is minimal after prophylactic povidone iodine irrigation before intravitreal injections. Therefore, this prophylaxis technique is recommended before intravitreal injections in order to prevent postoperative infections.


Subject(s)
Bacteria/isolation & purification , Conjunctiva/microbiology , Equipment Contamination/statistics & numerical data , Intravitreal Injections/statistics & numerical data , Needles/microbiology , Needles/statistics & numerical data , Adult , Female , Humans , Male , Middle Aged , Paraguay/epidemiology , Young Adult
18.
Ophthalmologe ; 107(10): 947-50, 2010 Oct.
Article in German | MEDLINE | ID: mdl-20376456

ABSTRACT

A 63-year-old woman presented with a 9-month history of painful amaurosis of the left eye caused by hemophthalmos. She was already undergoing chemotherapy for histopathologically proven liver metastases caused by an assumed melanoma. The location of the primary tumor was unknown. Whole-body FDG-PET/CT staging identified a lesion with characteristically malignant uptake in the region of the left eye as the primary tumor. After enucleation, a primary uveal melanoma was verified that expressed the serological marker melanoma inhibitory activity (MIA). FDG-PET/CT was able to successfully align hepatic metastases due to CUP with local ophthalmologic diagnostic findings and led to a correct diagnosis.


Subject(s)
Blindness/etiology , Eye Neoplasms/complications , Eye Neoplasms/surgery , Liver Neoplasms/complications , Liver Neoplasms/secondary , Neoplasms, Unknown Primary , Pain/prevention & control , Blindness/diagnosis , Eye Enucleation , Female , Humans , Liver Neoplasms/surgery , Middle Aged , Neoplasms, Unknown Primary/complications , Neoplasms, Unknown Primary/pathology , Neoplasms, Unknown Primary/surgery , Pain/etiology
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