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Archivos de La Sociedad Espanola de... Apr 2020
Topics: Equipment Design; History, 19th Century; Ireland; Ophthalmology; Ophthalmoscopes
PubMed: 31899058
DOI: 10.1016/j.oftal.2019.12.003 -
Archivos de La Sociedad Espanola de... Mar 2019
Topics: Equipment Design; History, 20th Century; Ophthalmoscopes
PubMed: 30268428
DOI: 10.1016/j.oftal.2018.06.020 -
Orvosi Hetilap Aug 1951
Topics: Humans; Ophthalmoscopes; Ophthalmoscopy
PubMed: 14875303
DOI: No ID Found -
American Journal of Ophthalmology Jul 1966
Topics: Humans; Ophthalmoscopes
PubMed: 5937153
DOI: 10.1016/0002-9394(66)91701-6 -
The American Journal of Gastroenterology Dec 2002
Topics: Equipment Design; History, 19th Century; History, 20th Century; Ophthalmoscopes
PubMed: 12492210
DOI: 10.1111/j.1572-0241.2002.07130.x -
Archives of Ophthalmology (Chicago,... Aug 2003
Topics: Germany; History, 15th Century; History, 16th Century; History, 19th Century; Ophthalmology; Ophthalmoscopes; Ophthalmoscopy
PubMed: 12912707
DOI: 10.1001/archopht.121.8.1208 -
Optics Letters Sep 2020Non-confocal adaptive optics scanning laser ophthalmoscopy (AOSLO) has enhanced the study of human retinal photoreceptors by providing complementary information to...
Non-confocal adaptive optics scanning laser ophthalmoscopy (AOSLO) has enhanced the study of human retinal photoreceptors by providing complementary information to standard confocal AOSLO images. Previously we developed the first confocal handheld AOSLO (HAOSLO) capable of in vivo cone photoreceptor imaging in supine and non-cooperative patients. Here, we introduce the first multimodal (M-)HAOSLO for confocal and non-confocal split-detection (SD) imaging to allow for more comprehensive patient data collection. Aside from its unprecedented miniature size and weight, M-HAOSLO is also the first system to perform sensorless wavefront-corrected SD imaging of cone photoreceptors.
Topics: Adult; Equipment Design; Humans; Image Processing, Computer-Assisted; Lasers; Ophthalmoscopes
PubMed: 32870897
DOI: 10.1364/OL.402392 -
Archivos de La Sociedad Espanola de... Dec 2018
Topics: Equipment Design; History, 19th Century; History, 20th Century; Humans; London; Ophthalmoscopes
PubMed: 30115495
DOI: 10.1016/j.oftal.2018.06.014 -
Medical Education Online Dec 2023To evaluate the effectiveness of smartphone ophthalmoscope (SO) in teaching ophthalmoscopy, compared with direct ophthalmoscope (DO). In this cross-over study, 45... (Randomized Controlled Trial)
Randomized Controlled Trial
To evaluate the effectiveness of smartphone ophthalmoscope (SO) in teaching ophthalmoscopy, compared with direct ophthalmoscope (DO). In this cross-over study, 45 final-year medical students attending sessions at a single institution were randomly allocated to two groups (A and B). Both groups attended two training sessions. In the first session, Group A students were taught ophthalmoscopy using DO and Group B students using SO. In the second session, the training sessions were crossed over. A series of eye models with 10 letters placed on the inner surface were designed to assess the students' skill on ophthalmoscopy. Students performed ophthalmoscopy on the eye models, recorded their findings, and completed a questionnaire of feedback on DO and SO. The main outcome measure was the score of ophthalmoscopy, assessed by the student correctly recording each letter (score 1 for each letter). For Group A, the mean score of ophthalmoscopy on the eye model using DO and SO was 3.9±2.4 and 8.2±2.2, respectively. For Group B, the mean score of ophthalmoscopy on the eye model using SO and DO 8.7±1.8 and 5.7±3.5 . Students scored significantly higher in ophthalmoscopy when using SO than DO (<0.001). They expressed better visualization of the fundus using SO than DO (4.49±0.65 vs 4.13±0.81, =0.004). Students' performance of ophthalmoscopy was better when SO was used compared with DO. The use of SO as an adjunctive tool is recommended to improve the effectiveness of teaching ophthalmoscopy.
Topics: Humans; Smartphone; Cross-Over Studies; Ophthalmology; Ophthalmoscopy; Ophthalmoscopes; Students, Medical; Teaching
PubMed: 36762913
DOI: 10.1080/10872981.2023.2176201 -
European Neurology 2009The origins of Helmholtz's invention of the ophthalmoscope are found in the ancient observation that the back of the eye appeared black. In 1703, Jean Méry reported...
The origins of Helmholtz's invention of the ophthalmoscope are found in the ancient observation that the back of the eye appeared black. In 1703, Jean Méry reported that the luminosity of the cat's eye could be seen when the animal was held under water, and Mariotte observed that a dog's eye was luminous but erroneously thought this was because its choroid was white. Prévost made a breakthrough when he deduced it was incident light and not light coming out of the eye. Purkinje and von Brucke used lenses to attempt to see the fundus and almost succeeded. However, it was Helmholtz who created the first useable ophthalmoscope, whose development and clinical application are traced in this paper. One of the greatest physical scientists in many spheres of learning, his biography is briefly sketched.
Topics: Equipment Design; Eye; Fundus Oculi; Germany; History, 19th Century; Humans; Ophthalmoscopes; Ophthalmoscopy
PubMed: 19182487
DOI: 10.1159/000198418