A mathematical description of nerve fiber bundle trajectories
... The model as presented in this study was built in a novel coordinate system, described in the Methods and Appendix sections. The choice of a coordinate system is essentially arbitrary as long as proper transformations are performed going from one system to the other (Boyer, 1949). Usually, a system ...
... The model as presented in this study was built in a novel coordinate system, described in the Methods and Appendix sections. The choice of a coordinate system is essentially arbitrary as long as proper transformations are performed going from one system to the other (Boyer, 1949). Usually, a system ...
Reprint - Victor Chong
... Bruch’s membrane, and choroidal vessels in normal control subjects. In SFD, immunolabeling of TIMP-3 also was present in the sub-RPE deposit and in the inner portion of the ciliary body deposit. TIMP-3 immunoreactivity was more extensive in the SFD eye. The pattern of elastin immunoreactivity was re ...
... Bruch’s membrane, and choroidal vessels in normal control subjects. In SFD, immunolabeling of TIMP-3 also was present in the sub-RPE deposit and in the inner portion of the ciliary body deposit. TIMP-3 immunoreactivity was more extensive in the SFD eye. The pattern of elastin immunoreactivity was re ...
refraction systems autorefractors
... video output terminal. Auto-start function initiates measurements automatically when alignment is achieved. Equipped w/an automatic power save turn off. Kerato-peripheral, IOL and PD measurements. ...
... video output terminal. Auto-start function initiates measurements automatically when alignment is achieved. Equipped w/an automatic power save turn off. Kerato-peripheral, IOL and PD measurements. ...
Optic Nerve Head and Retinal Nerve Fiber Layer Imaging in
... At present, clinically visible RNFL defects are considered as the sensitive indicator for early diagnosis of glaucoma. Experimental studies have shown, that localized RNFL defects can ophthalmoscopically be detected if more than 50% of the thickness of the retinal nerve fiber layer is lost.1,2 The g ...
... At present, clinically visible RNFL defects are considered as the sensitive indicator for early diagnosis of glaucoma. Experimental studies have shown, that localized RNFL defects can ophthalmoscopically be detected if more than 50% of the thickness of the retinal nerve fiber layer is lost.1,2 The g ...
Kimberly Nolan - American Academy of Optometry
... (breast cancer treatment), canthaxanthin (carotenoid used to ...
... (breast cancer treatment), canthaxanthin (carotenoid used to ...
The Aging Eye
... – Post operative -High-level of pressure in the eye, corneal swelling, retinal inflammation, dislocation of the IOL, retinal detachment, infection – Posterior capsule opacifications (PCO) – migration of lens remnants to the visual axis of the capsule – less common with improved technique – treat wit ...
... – Post operative -High-level of pressure in the eye, corneal swelling, retinal inflammation, dislocation of the IOL, retinal detachment, infection – Posterior capsule opacifications (PCO) – migration of lens remnants to the visual axis of the capsule – less common with improved technique – treat wit ...
Review Questions - Lynn`s Lecture Help
... called cotton wool spots) Cotton Wool Spots – fluffy looking white deposits resembling small tufts of cotton within the retinal nerve fiber layer that represent small patched of retina that have lost their blood supply from vessel obstruction Nevus – mole small and flat usually pigmented area, benig ...
... called cotton wool spots) Cotton Wool Spots – fluffy looking white deposits resembling small tufts of cotton within the retinal nerve fiber layer that represent small patched of retina that have lost their blood supply from vessel obstruction Nevus – mole small and flat usually pigmented area, benig ...
Shaken Baby Syndrome
... shearing tractional forces on the retina, in particular the macula, causing it to split its layers, forming a cystic cavity that may be partially or completely filled with blood. It also is important to avoid the common error in identifying these blood collections as "preretinal" or "subhyaloid" (be ...
... shearing tractional forces on the retina, in particular the macula, causing it to split its layers, forming a cystic cavity that may be partially or completely filled with blood. It also is important to avoid the common error in identifying these blood collections as "preretinal" or "subhyaloid" (be ...
Proliferative sickle cell retinopathy
... promising results, but there are not currently any large clinical-based studies examining this treatment option. The decision to treat or monitor retinal neovascularization associated with sickle cell retinopathy remains a point of controversy. Lesions are generally peripheral and most patients reta ...
... promising results, but there are not currently any large clinical-based studies examining this treatment option. The decision to treat or monitor retinal neovascularization associated with sickle cell retinopathy remains a point of controversy. Lesions are generally peripheral and most patients reta ...
Chapter 8 PHOTOGRAPHIC PROCEDURES 8.1 INTRODUCTION
... photographs. Second, they may be used as an aid to interpreting the slit lamp and Neitz photographs, much as color photographs are useful adjuncts to fluorescein angiograms. Finally, they are used to grade iris pigmentation (color). 8.2.3.1 Red reflex photographs. To best document lens opacities, th ...
... photographs. Second, they may be used as an aid to interpreting the slit lamp and Neitz photographs, much as color photographs are useful adjuncts to fluorescein angiograms. Finally, they are used to grade iris pigmentation (color). 8.2.3.1 Red reflex photographs. To best document lens opacities, th ...
File - rmhEDucation
... To be confident that the detachment is retina and not vitreous: try to get the optic nerve in the image so that retinal attachment points can be visualised. When detached, the retina is seen as a hyperechoic mobile line bulging into the vitreous with lucent areas superiorly and inferiorly. Anteriorl ...
... To be confident that the detachment is retina and not vitreous: try to get the optic nerve in the image so that retinal attachment points can be visualised. When detached, the retina is seen as a hyperechoic mobile line bulging into the vitreous with lucent areas superiorly and inferiorly. Anteriorl ...
The Eye Examination 1 - Stony Brook University School of Medicine
... movements, and direct ophthalmoscopy through undilated pupils constitute a minimal examination. Pupillary dilation for ophthalmoscopy is required in cases of unexplained visual loss or when fundus pathology is suspected (eg, diabetes mellitus). Distance visual acuity mea ...
... movements, and direct ophthalmoscopy through undilated pupils constitute a minimal examination. Pupillary dilation for ophthalmoscopy is required in cases of unexplained visual loss or when fundus pathology is suspected (eg, diabetes mellitus). Distance visual acuity mea ...
Treatment and Management of Posterior Segment Trauma
... • The risk of acute retinal detachment is low. • Recommendation is nonsurgical management for the initial treatment of these patients, with continued observation for complications that may later occur. – Such as RD ...
... • The risk of acute retinal detachment is low. • Recommendation is nonsurgical management for the initial treatment of these patients, with continued observation for complications that may later occur. – Such as RD ...
We have no budget for this eye screening.
... helps us in interpreting results from all the other stations if the student helper did not record clearly. A good eye screening recording form is important to allow proper recordings of student helpers’ findings, and to let the other helpers better interpret the conditions of the participants. Punct ...
... helps us in interpreting results from all the other stations if the student helper did not record clearly. A good eye screening recording form is important to allow proper recordings of student helpers’ findings, and to let the other helpers better interpret the conditions of the participants. Punct ...
Bilateral Eviscerations-Retinopathy of Prematurity
... Lens-calcified and ossified with wrinkled capsule Gliosis, calcification, ossification ...
... Lens-calcified and ossified with wrinkled capsule Gliosis, calcification, ossification ...
Central retinal vein occlusion as an uncommon complication of
... A 23-year-old black woman was referred to our hospital because of acute blurred vision in the right eye. Her medical history was unremarkable and she was not on any medication. There was no history of eye trauma. She had been consulting her general practitioner for four months because of dyspnoea an ...
... A 23-year-old black woman was referred to our hospital because of acute blurred vision in the right eye. Her medical history was unremarkable and she was not on any medication. There was no history of eye trauma. She had been consulting her general practitioner for four months because of dyspnoea an ...
What You Can See In the Eye of a Minipig
... To perform the examination, Tropicamide 1% (e.g.Mydriacyl®) is applied to the eyes prior to the examination. This will usually provide satisfactory dilatation of the pupils within 20 minutes after application. Mydriasis will be maintained for approximately an hour. Minipigs up to an age of 6 months ...
... To perform the examination, Tropicamide 1% (e.g.Mydriacyl®) is applied to the eyes prior to the examination. This will usually provide satisfactory dilatation of the pupils within 20 minutes after application. Mydriasis will be maintained for approximately an hour. Minipigs up to an age of 6 months ...
Literature search on the Internet
... conservative treatment. Size of the tumour: Small melanomas (2-3mm thick) are usually observed periodically for evidence of growth and other signs of malignancy. Medium (35 mm thick) and large (5-10mm thick) may be observed, irradiated, locally resected or enucleated depending on other factors. Extr ...
... conservative treatment. Size of the tumour: Small melanomas (2-3mm thick) are usually observed periodically for evidence of growth and other signs of malignancy. Medium (35 mm thick) and large (5-10mm thick) may be observed, irradiated, locally resected or enucleated depending on other factors. Extr ...
entra-ocular hydatid cyst - British Journal of Ophthalmology
... have been considered by Duke-Elder (1940) and Sverdlick (1961) to be lacking authenticity. Scholtz (1906) could not carry out any histopathological or cytological studies to confirm his clinical diagnosis since the disease had occurred in the only eye in his case. The present case adds one more to t ...
... have been considered by Duke-Elder (1940) and Sverdlick (1961) to be lacking authenticity. Scholtz (1906) could not carry out any histopathological or cytological studies to confirm his clinical diagnosis since the disease had occurred in the only eye in his case. The present case adds one more to t ...
Supplementary Material
... Laser parameters included a 75-μm spot size, 0.1 second duration, and power ranging from 400 to 650 mW. The power was initially set at 500 mW. If no hemorrhage occurred at a given spot, a second spot was placed adjacent to it using a laser intensity of 650 mW (except for the spot just temporal to th ...
... Laser parameters included a 75-μm spot size, 0.1 second duration, and power ranging from 400 to 650 mW. The power was initially set at 500 mW. If no hemorrhage occurred at a given spot, a second spot was placed adjacent to it using a laser intensity of 650 mW (except for the spot just temporal to th ...
Retinal Structure in Birds of Prey
... relatively high and low backscattering are visible farther down into the retina that correspond to the inner plexiform layer (IP), the inner nuclear layer (IN), the outer plexiform layer (OP), and the outer nuclear layer (ON). The external limiting membrane (ELM) is visualized as a thin, bright line ...
... relatively high and low backscattering are visible farther down into the retina that correspond to the inner plexiform layer (IP), the inner nuclear layer (IN), the outer plexiform layer (OP), and the outer nuclear layer (ON). The external limiting membrane (ELM) is visualized as a thin, bright line ...
Nonpenetrating Deep Sclerectomy
... and 20/50 OS, and her IOP measured 17 mm Hg OD and 60 mm Hg OS. A dilated fundus examination revealed correspondingly asymmetric cup-to-disc ratios of 0.3 OD and 0.9 OS. The full spectrum of ocular hypotensive medications reduced the IOP in her left eye to 46 mm Hg in the clinic, and she was permitt ...
... and 20/50 OS, and her IOP measured 17 mm Hg OD and 60 mm Hg OS. A dilated fundus examination revealed correspondingly asymmetric cup-to-disc ratios of 0.3 OD and 0.9 OS. The full spectrum of ocular hypotensive medications reduced the IOP in her left eye to 46 mm Hg in the clinic, and she was permitt ...
Optical Coherence Tomography and Advanced Fundus Imaging
... in which the position of the reference mirror is changed and reflected intensity signals are detected from the sample at different depths, sequentially, based on “time of flight” / echo time delay. Since the signals gathered are time-encoded, the system is referred to as a time domain. Newer systems ...
... in which the position of the reference mirror is changed and reflected intensity signals are detected from the sample at different depths, sequentially, based on “time of flight” / echo time delay. Since the signals gathered are time-encoded, the system is referred to as a time domain. Newer systems ...
Retinal Detachment - Retina Eye Specialists
... Optical Coherence Tomography (OCT) is a high definition image of the retina taken by a scanning ophthalmoscope with a resolution of 5 microns. These scans are used to document any macular involvement of the retinal detachment and how much fluid is under the retina. The doctor will use OCT images to ...
... Optical Coherence Tomography (OCT) is a high definition image of the retina taken by a scanning ophthalmoscope with a resolution of 5 microns. These scans are used to document any macular involvement of the retinal detachment and how much fluid is under the retina. The doctor will use OCT images to ...
B2B Ophthalmology Toren Mar 29 2011
... Determine whether the loss of vision is acute or chronic (at times, the loss of monocular vision is noted incidentally when the other eye is covered so that a chronic loss presents acutely). ...
... Determine whether the loss of vision is acute or chronic (at times, the loss of monocular vision is noted incidentally when the other eye is covered so that a chronic loss presents acutely). ...
Fundus photography
Fundus Photography involves capturing a photograph of the back of the eye i.e. fundus. Specialized fundus cameras that consist of an intricate microscope attached to a flashed enabled camera are used in fundus photography. The main structures that can be visualized on a fundus photo are the central and peripheral retina, optic disc and macula. Fundus photography can be performed with colored filters, or with specialized dyes including fluorescein and indocyanine green.The models and technology of fundus photography has advanced and evolved rapidly over the last century. Since the equipments are sophisticated and challenging to manufacture to clinical standards, only a few manufacturers/brands are available in the market: Topcon, Zeiss, Canon, Nidek, Kowa, CSO and CenterVue are some example of fundus camera manufacturers.