flashes and floaters - Eye Doctors Portland
... The small specks or “bugs” that you may occasionally see moving across your vision are called floaters. They are most visible when you are looking at a plain background such as a white wall or the bright blue sky. Floaters are actually tiny clumps of gel or debris within the vitreous, which is the c ...
... The small specks or “bugs” that you may occasionally see moving across your vision are called floaters. They are most visible when you are looking at a plain background such as a white wall or the bright blue sky. Floaters are actually tiny clumps of gel or debris within the vitreous, which is the c ...
standardized procedures for the measurements of visual acuity and
... In 1861 Donders defined visual efficiency as “the ratio between a subject’s performance and a standard performance” in distinguishing details of a specified test stimulus. The measure concept of visual acuity presupposes the presentation of some visual stimuli targets to the patient and the conseque ...
... In 1861 Donders defined visual efficiency as “the ratio between a subject’s performance and a standard performance” in distinguishing details of a specified test stimulus. The measure concept of visual acuity presupposes the presentation of some visual stimuli targets to the patient and the conseque ...
Stromal Rejection after Deep Anterior Lamellar Keratoplasty (DALK
... 160 eyes of 80 patients with refractive errors were included in this study. Niroula et al [2] reported that distribution of myopia was found to be higher (4.05%) than the hyperopia (1.24%) and astigmatism (1.14%). Niroula et al [2] in the present study, myopia was in 24 (60%), hypermetropia in 2 (5% ...
... 160 eyes of 80 patients with refractive errors were included in this study. Niroula et al [2] reported that distribution of myopia was found to be higher (4.05%) than the hyperopia (1.24%) and astigmatism (1.14%). Niroula et al [2] in the present study, myopia was in 24 (60%), hypermetropia in 2 (5% ...
A SYNDROME OF EXTENSIVE PERIPAPILLARY MYELINATED
... Myelinated nerve fibers appear as white to gray-white areas of retina, obscuring underlying retinal detail. In most cases, they radiate peripherally from the optic disc, most commonly superior and inferior temporally, but can appear isolated in the posterior pole1. Ellis et al. divided myelination i ...
... Myelinated nerve fibers appear as white to gray-white areas of retina, obscuring underlying retinal detail. In most cases, they radiate peripherally from the optic disc, most commonly superior and inferior temporally, but can appear isolated in the posterior pole1. Ellis et al. divided myelination i ...
Another amazing Congress - the Royal College of Ophthalmologists
... Taking retinal images for autofluorescence require the same technique as retinal photography, however one needs to be familiar with the imaging kit to ensure autofluorescence mode is selected for image capture. After positioning the patient on the camera and with the eye aligned for uniform illumina ...
... Taking retinal images for autofluorescence require the same technique as retinal photography, however one needs to be familiar with the imaging kit to ensure autofluorescence mode is selected for image capture. After positioning the patient on the camera and with the eye aligned for uniform illumina ...
Frans C. Stades - American College of Veterinary Ophthalmologists
... • Panel (regional e.g. Germany) meetings (at least 2 times/year), or a chief panellist (an ECVO-diplomate appointed by the National Panel) available for the evaluation of appeal cases. An owner has the right to appeal the results of an eye examination and the procedure is as follows: • Any appeal: i ...
... • Panel (regional e.g. Germany) meetings (at least 2 times/year), or a chief panellist (an ECVO-diplomate appointed by the National Panel) available for the evaluation of appeal cases. An owner has the right to appeal the results of an eye examination and the procedure is as follows: • Any appeal: i ...
Retinal damage in macaque after white light exposures lasting ten
... al,9 that is, anesthetized macaque monkeys and exposures restricted to small patches of retina. In addition to funduscopy, we introduced retinal densitometry as a new technique for assessing damage. This technique has the advantage of being both quantitative and noninvasive. Also, direct information ...
... al,9 that is, anesthetized macaque monkeys and exposures restricted to small patches of retina. In addition to funduscopy, we introduced retinal densitometry as a new technique for assessing damage. This technique has the advantage of being both quantitative and noninvasive. Also, direct information ...
Iatrogenic Carotid Cavernous Sinus Syndrome
... the CCF by ligating the common carotid artery. CCF's can be divided into 3 types: spontaneous (25%), traumatic (75%)' and iatrogenic. The fully developed CCF syndrome includes: ocular bruit (75%), pulsating exophthalmos (69%), diplopia (24%), conjunctival chemosis (36%), orbital pain (16%), and, les ...
... the CCF by ligating the common carotid artery. CCF's can be divided into 3 types: spontaneous (25%), traumatic (75%)' and iatrogenic. The fully developed CCF syndrome includes: ocular bruit (75%), pulsating exophthalmos (69%), diplopia (24%), conjunctival chemosis (36%), orbital pain (16%), and, les ...
Retinal image quality in the rodent eye
... 1965). If optical spread were significantly enlarging the retinal images of spots, then the measured receptive fields should have been larger than the true physiological receptive fields. However, the situation might not be quite so simple. When one views the rat fundus with an ophthalmoscope, the i ...
... 1965). If optical spread were significantly enlarging the retinal images of spots, then the measured receptive fields should have been larger than the true physiological receptive fields. However, the situation might not be quite so simple. When one views the rat fundus with an ophthalmoscope, the i ...
The effect of combined daunorubicin and triamcinolone
... complication of retinal surgery. This condition is characterized by cellular proliferation on the anterior and posterior surfaces of the retina and along formed vitreous, resulting in the formation of strands and membranes as well asfixedretinal folding.12 Mechanical removal of these membranes allow ...
... complication of retinal surgery. This condition is characterized by cellular proliferation on the anterior and posterior surfaces of the retina and along formed vitreous, resulting in the formation of strands and membranes as well asfixedretinal folding.12 Mechanical removal of these membranes allow ...
our history - Emory Eye Center
... In 1940, Dr. Clay and Phinizy Sr.’s son, Phinizy Calhoun Jr., organized an ophthalmic pathology laboratory, one of only a handful of laboratories of its kind in the country. The junior Calhoun went on to serve as department chairman from 1946 until 1978. During his tenure, he helped open an eye bank ...
... In 1940, Dr. Clay and Phinizy Sr.’s son, Phinizy Calhoun Jr., organized an ophthalmic pathology laboratory, one of only a handful of laboratories of its kind in the country. The junior Calhoun went on to serve as department chairman from 1946 until 1978. During his tenure, he helped open an eye bank ...
Part 2 MRCSI (Ophth) Clinical Examination regulations and
... Two examiners will be present at each station, including two ophthalmologists in stations 13, an ophthalmologist and a neurologist/physician in station 4, and an ophthalmologist and an ophthalmic pathologist in station 5. The candidate will be asked to assess between two and six clinical cases a ...
... Two examiners will be present at each station, including two ophthalmologists in stations 13, an ophthalmologist and a neurologist/physician in station 4, and an ophthalmologist and an ophthalmic pathologist in station 5. The candidate will be asked to assess between two and six clinical cases a ...
Part 2 MRCSI (Ophth) Clinical Examination regulations and
... Two examiners will be present at each station, including two ophthalmologists in stations 13, an ophthalmologist and a neurologist/physician in station 4, and an ophthalmologist and an ophthalmic pathologist in station 5. The candidate will be asked to assess between two and six clinical cases a ...
... Two examiners will be present at each station, including two ophthalmologists in stations 13, an ophthalmologist and a neurologist/physician in station 4, and an ophthalmologist and an ophthalmic pathologist in station 5. The candidate will be asked to assess between two and six clinical cases a ...
Blue laser autofluorescence
... be highly effective in the diagnosis of wet AMD. In order to understand why this is so, one must first understand the nature of the disease process. Wet AMD is characterised by choroidal neocascularisation (CNV), which develops between Bruch’s membrane, RPE and the photoreceptor layer. In studies, i ...
... be highly effective in the diagnosis of wet AMD. In order to understand why this is so, one must first understand the nature of the disease process. Wet AMD is characterised by choroidal neocascularisation (CNV), which develops between Bruch’s membrane, RPE and the photoreceptor layer. In studies, i ...
Hereditary eye disease in dogs - British Veterinary Association
... 9: Anterior segment – gross globe – the iris root processes that comprise the pectinate ligament span the entrance to the ciliary cleft. The iris, from which the processes arise, is on the left and the posterior cornea, where the processes insert, is on the right. 10: Acute closed angle glaucoma. 11 ...
... 9: Anterior segment – gross globe – the iris root processes that comprise the pectinate ligament span the entrance to the ciliary cleft. The iris, from which the processes arise, is on the left and the posterior cornea, where the processes insert, is on the right. 10: Acute closed angle glaucoma. 11 ...
Vision
... result in gradual progressive atrophy of optic nerve cells. The development of chronic elevated intraocular pressure is generally painless, and the gradual loss of peripheral visual field can progress significantly before symptoms are noticed. Glaucoma may also affect a number of subtler visual func ...
... result in gradual progressive atrophy of optic nerve cells. The development of chronic elevated intraocular pressure is generally painless, and the gradual loss of peripheral visual field can progress significantly before symptoms are noticed. Glaucoma may also affect a number of subtler visual func ...
Inflammatory priming predisposes mice to age
... acquired factors (1). Long-lived nondividing cells, such as neurons, have markedly reduced tolerance to damage (2), and thus exhibit the most pronounced age-related changes. Neuronal cells in the retina are an especially attractive model system to study this phenomenon, owing to their accessibility ...
... acquired factors (1). Long-lived nondividing cells, such as neurons, have markedly reduced tolerance to damage (2), and thus exhibit the most pronounced age-related changes. Neuronal cells in the retina are an especially attractive model system to study this phenomenon, owing to their accessibility ...
acute posterior multifocal placoid pigment epitheliopathy following
... rheumatologic conditions [10], raised the need for specific investigations in order to elucidate the diagnosis, to identify associated pathological conditions and to lead towards appropriate therapy management. Moreover, Darugar et al. published a case of sarcoidosis with APMPPE as initial manifesta ...
... rheumatologic conditions [10], raised the need for specific investigations in order to elucidate the diagnosis, to identify associated pathological conditions and to lead towards appropriate therapy management. Moreover, Darugar et al. published a case of sarcoidosis with APMPPE as initial manifesta ...
Macular Pigment Density in patients with Diabetes compared with
... with dense cataracts by measuring MPOD before and after cataract surgery6. Yuzuru et al found out that Cataract, especially its nuclear component, affects MPOD measured by autofluorescence spectrometry7. Allessandro et al found out that there was no age related decline in macular pigment density8. N ...
... with dense cataracts by measuring MPOD before and after cataract surgery6. Yuzuru et al found out that Cataract, especially its nuclear component, affects MPOD measured by autofluorescence spectrometry7. Allessandro et al found out that there was no age related decline in macular pigment density8. N ...
Growth of Fish Retinas1
... SYNOPSIS. This review discusses development and growth of the retina. A geometric model of retinal differentiation is proposed in which four phases are recognized; the first three are common to all vertebrate embryos. The last, post-embryonic growth phase has two alternate routes, one followed by bi ...
... SYNOPSIS. This review discusses development and growth of the retina. A geometric model of retinal differentiation is proposed in which four phases are recognized; the first three are common to all vertebrate embryos. The last, post-embryonic growth phase has two alternate routes, one followed by bi ...
Optical Coherence Tomography and Advanced Fundus Imaging
... tissues or between probe, coupling medium and tissues, OCT does not require any contact with the eye (thus avoiding the potential for tissue compression and/or distortion) and it allows measurement of structures and distances on the sub- 10 micron scale, versus the 100micron scale of all but the hig ...
... tissues or between probe, coupling medium and tissues, OCT does not require any contact with the eye (thus avoiding the potential for tissue compression and/or distortion) and it allows measurement of structures and distances on the sub- 10 micron scale, versus the 100micron scale of all but the hig ...
PEARS Service Specification (rev Nov 2013)
... Participating ophthalmic practitioners must complete the Cardiff (WOPEC)/LOCSU PEARS Distance Learning modules (Part 1) and the associated Practical Skills Demonstration (Part 2). Part 1 must be completed before Part 2. An ophthalmic practitioner who has a relevant higher qualification and experienc ...
... Participating ophthalmic practitioners must complete the Cardiff (WOPEC)/LOCSU PEARS Distance Learning modules (Part 1) and the associated Practical Skills Demonstration (Part 2). Part 1 must be completed before Part 2. An ophthalmic practitioner who has a relevant higher qualification and experienc ...
New Methods of Diagnosis and Treatment of Ophthalmic Artery
... loss, studies of choroidal perfusion and cerebral angiography were obtained. Binocular Fundus Reflectometry was used in all patients to evaluate choroidal perfusion. OPG and ODM were also evaluated in each patient. Cerebral angiography was used with special attention to orbital filling details with ...
... loss, studies of choroidal perfusion and cerebral angiography were obtained. Binocular Fundus Reflectometry was used in all patients to evaluate choroidal perfusion. OPG and ODM were also evaluated in each patient. Cerebral angiography was used with special attention to orbital filling details with ...
12.0 OPHTHALMOLOGY
... extraocular muscles in either or both eyes. An extraocular muscle tendon may be shortened (resection) to strengthen its action, or the insertion of the muscle moved posteriorly on the globe (recession) to weaken its action. Suspending the tendon on hangback sutures is an alternative to traditional r ...
... extraocular muscles in either or both eyes. An extraocular muscle tendon may be shortened (resection) to strengthen its action, or the insertion of the muscle moved posteriorly on the globe (recession) to weaken its action. Suspending the tendon on hangback sutures is an alternative to traditional r ...
Analysis and interpretation of the mutations was - HAL
... daughter) in a recent review without a clinical description.3 All mutations were ...
... daughter) in a recent review without a clinical description.3 All mutations were ...
Retinitis pigmentosa
Retinitis pigmentosa (RP) is an inherited, degenerative eye disease that causes severe vision impairment due to the progressive degeneration of the rod photoreceptor cells in the retina. This form of retinal dystrophy manifests initial symptoms independent of age; thus, RP diagnosis occurs anywhere from early infancy to late adulthood. Patients in the early stages of RP first notice compromised peripheral and dim light vision due to the decline of the rod photoreceptors. The progressive rod degeneration is later followed by abnormalities in the adjacent retinal pigment epithelium (RPE) and the deterioration of cone photoreceptor cells. As peripheral vision becomes increasingly compromised, patients experience progressive ""tunnel vision"" and eventual blindness. Affected individuals may additionally experience defective light-dark adaptations, nyctalopia (night blindness), and the accumulation of bone spicules in the fundus (eye).