Central retinal vein occlusion associated with sildenafil citrate (Viagra)
... associated with vein occlusions, especially in the young and Middle Ages (8,9). Some studies mentioned that there was no significant changes observed in mean blood pressure, IOP and perfusion pressure after Sildenafil treatment when compared to placebo (10). Where as other studies reported a signifi ...
... associated with vein occlusions, especially in the young and Middle Ages (8,9). Some studies mentioned that there was no significant changes observed in mean blood pressure, IOP and perfusion pressure after Sildenafil treatment when compared to placebo (10). Where as other studies reported a signifi ...
The Foundation Fighting Blindness USA has
... retinas. Some complications include: inflammation of different parts of the eye, macular edema (swelling of central retina), and more difficult management of an existing epiretinal membrane (scar tissue). 3.How does one reduce their risk of complications? The surgery should be performed by someone e ...
... retinas. Some complications include: inflammation of different parts of the eye, macular edema (swelling of central retina), and more difficult management of an existing epiretinal membrane (scar tissue). 3.How does one reduce their risk of complications? The surgery should be performed by someone e ...
Blue laser autofluorescence
... if FAF findings obtained with cSLO are always comparable with those obtained with the fundus camera based system. For example, the use of different excitation wavelengths and emission filters between both systems may have an impact on the autofluorescence intensity distribution in pathologic conditi ...
... if FAF findings obtained with cSLO are always comparable with those obtained with the fundus camera based system. For example, the use of different excitation wavelengths and emission filters between both systems may have an impact on the autofluorescence intensity distribution in pathologic conditi ...
Visual Loss of Uncertain Origin: Diagnostic Strategies
... possibility of optic neuritis. This mistake can be corrected by everting the upper lid, exposing the (sometimes giant) follicles. In addition, the visual problems caused by marginal blepharitis and/or chalazions are frequently underestimated, though they can produce significant changes in corneal as ...
... possibility of optic neuritis. This mistake can be corrected by everting the upper lid, exposing the (sometimes giant) follicles. In addition, the visual problems caused by marginal blepharitis and/or chalazions are frequently underestimated, though they can produce significant changes in corneal as ...
Macular Degeneration
... ◦ Cells in the retinal pigment epithelium (RPE) deteriorate with age and lose pigment, making it less efficient in removing outer segment waste. Drusens, (yellow fat-like deposits) begin to appear under cones and rods. ...
... ◦ Cells in the retinal pigment epithelium (RPE) deteriorate with age and lose pigment, making it less efficient in removing outer segment waste. Drusens, (yellow fat-like deposits) begin to appear under cones and rods. ...
Eyes - The George Veterinary Group
... (see picture 1) but in cases of conjunctivitis it can become reddened and quite inflamed (see picture 2). This may be due to trauma or infection. Occasionally, we see nasty tumours on the conjunctiva and just like wounds or tumours on the eyelids, these can affect normal closure of the eye and requi ...
... (see picture 1) but in cases of conjunctivitis it can become reddened and quite inflamed (see picture 2). This may be due to trauma or infection. Occasionally, we see nasty tumours on the conjunctiva and just like wounds or tumours on the eyelids, these can affect normal closure of the eye and requi ...
Epiretinal Membranes (ERMs), also commonly
... tomography (OCT). In such cases, patients typically have normal or near-normal vision. However, ERMs can slowly progress, leading to a vague visual distortion that can be perceived better by closing the non- or less-affected eye. Patients may notice metamorphopsia, a symptom that causes visual dis ...
... tomography (OCT). In such cases, patients typically have normal or near-normal vision. However, ERMs can slowly progress, leading to a vague visual distortion that can be perceived better by closing the non- or less-affected eye. Patients may notice metamorphopsia, a symptom that causes visual dis ...
- Investors
... Glaucoma is a progressive optic neuropathy that leads to irreversible damage to retinal ganglion cells. The damage may lead to diminished visual function and blindness, especially when not adequately treated. Globally, glaucoma is one of the leading causes of blindness. Since there is no known cure ...
... Glaucoma is a progressive optic neuropathy that leads to irreversible damage to retinal ganglion cells. The damage may lead to diminished visual function and blindness, especially when not adequately treated. Globally, glaucoma is one of the leading causes of blindness. Since there is no known cure ...
aging america updated fall segu 2013
... 5% of all AION cases Short posterior ciliary artery vasculitis with ONH infarction associated with Temporal arteritis ...
... 5% of all AION cases Short posterior ciliary artery vasculitis with ONH infarction associated with Temporal arteritis ...
ocular trauma
... perception or worse. 2) Abnormal deep/shallow anterior chamber. 3) Opacity preventing view of fundus. 4) IOP of 5 or less. ...
... perception or worse. 2) Abnormal deep/shallow anterior chamber. 3) Opacity preventing view of fundus. 4) IOP of 5 or less. ...
Exam1_2017_with_key
... B) Under dark adapted conditions C) With a pinhole at the anterior focal point of the eye D) With short wavelength light E) During a solar eclipse. 2) Opacities or defects in the vitreous are more visible with a smaller pupil because A) The umbras are long enough to reach the retina B) The penumbras ...
... B) Under dark adapted conditions C) With a pinhole at the anterior focal point of the eye D) With short wavelength light E) During a solar eclipse. 2) Opacities or defects in the vitreous are more visible with a smaller pupil because A) The umbras are long enough to reach the retina B) The penumbras ...
Management of persistent hyperplastic primary vitreous by pars
... operative technique and postoperative results were not specified. Michels and others (I975) have saidthat they prefer to use an incision at the limbus rather than at the pars plana in these microphthalmic eyes. We advocate early surgical intervention in these cases before complications such as bleed ...
... operative technique and postoperative results were not specified. Michels and others (I975) have saidthat they prefer to use an incision at the limbus rather than at the pars plana in these microphthalmic eyes. We advocate early surgical intervention in these cases before complications such as bleed ...
Evaluation of Retinal Pigment Epithelial Hamartoma Using Oct – A
... noted. This lesion remained stable for 15 years. ...
... noted. This lesion remained stable for 15 years. ...
Aging Q3 Vision Loss Poster - 157 KB
... factors include older age, smoking, and hypertension. Vision is lost in central visual fields, and diagnosis is made by exam, which shows macular exudates (drusen) in dry AMD, and macula hemorrhage in wet AMD. There is a range of treatments, including vitamin, antioxidant and zinc supplementation, i ...
... factors include older age, smoking, and hypertension. Vision is lost in central visual fields, and diagnosis is made by exam, which shows macular exudates (drusen) in dry AMD, and macula hemorrhage in wet AMD. There is a range of treatments, including vitamin, antioxidant and zinc supplementation, i ...
In vivo confocal imaging of the retina in animal models using
... and not near the outside of the vessel (compare Fig. 4). In addition, the nerve fiber layer is usually well visible (Figs. 2A and C, arrow). The IR images show less retinal details but provide additional information about the choroidal vasculature (Fig. 2B, arrowhead). Veins and arteries do not differ ...
... and not near the outside of the vessel (compare Fig. 4). In addition, the nerve fiber layer is usually well visible (Figs. 2A and C, arrow). The IR images show less retinal details but provide additional information about the choroidal vasculature (Fig. 2B, arrowhead). Veins and arteries do not differ ...
pp_Direct-Ophthalmoscopy_en
... Red Reflex - hold ophthalmoscope at ~50cm and look through sight hole at the ocular media. Find the red reflex in the pupil. Opacities (eg cataracts) can be seen. ...
... Red Reflex - hold ophthalmoscope at ~50cm and look through sight hole at the ocular media. Find the red reflex in the pupil. Opacities (eg cataracts) can be seen. ...
Epiretinal Membranes (ERMs), also commonly
... tomography (OCT). In such cases, patients typically have normal or near-normal vision. However, ERMs can slowly progress, leading to a vague visual distortion that can be perceived better by closing the non- or less-affected eye. Patients may notice metamorphopsia, a symptom that causes visual dis ...
... tomography (OCT). In such cases, patients typically have normal or near-normal vision. However, ERMs can slowly progress, leading to a vague visual distortion that can be perceived better by closing the non- or less-affected eye. Patients may notice metamorphopsia, a symptom that causes visual dis ...
Cotton wool spots
... cotton wool spots, as shown in the table below. Consequences of retinal hypoxia include tissue oedema, occlusion of precapillary arterioles, the local accumulation of fluid and metabolic products and interruption of axoplasmic flow within the nerve fibre layer, resulting in the characteristic appear ...
... cotton wool spots, as shown in the table below. Consequences of retinal hypoxia include tissue oedema, occlusion of precapillary arterioles, the local accumulation of fluid and metabolic products and interruption of axoplasmic flow within the nerve fibre layer, resulting in the characteristic appear ...
Differential diagnosis of PVD and retinal detachment
... with scleral depressor. Head set BIO takes a lot of practise and according to the College of Optometrists Clinical Practice Survey (2001) only 15% of respondent optometrists used the Head set BIO in practice. Scleral depression or indentation further enhances the view of the peripheral retina and ai ...
... with scleral depressor. Head set BIO takes a lot of practise and according to the College of Optometrists Clinical Practice Survey (2001) only 15% of respondent optometrists used the Head set BIO in practice. Scleral depression or indentation further enhances the view of the peripheral retina and ai ...
Basic Principles for Taking Extraoral Photographs
... patient’s face, usually as a result of direct non-diffuse “flash” which has a tendency for the tone intensity to appear cloudy. Another problem occurs when the lighting is placed so that it distorts the patient’s appearance. Two electronic “flashes” on a stand, placed at an angle of 45 degrees, so t ...
... patient’s face, usually as a result of direct non-diffuse “flash” which has a tendency for the tone intensity to appear cloudy. Another problem occurs when the lighting is placed so that it distorts the patient’s appearance. Two electronic “flashes” on a stand, placed at an angle of 45 degrees, so t ...
Aging Q3 Vision Loss Detailing Sheet - 66 KB
... Vision and Aging Glaucoma. Primary open angle glaucoma occurs more in African Americans, and may cause peripheral vision loss (tunnel vision). Funduscopic exam shows increased diameter and cupping of the optic disc, with vision loss due to loss of central retinal ganglia. Intraocular pressure is us ...
... Vision and Aging Glaucoma. Primary open angle glaucoma occurs more in African Americans, and may cause peripheral vision loss (tunnel vision). Funduscopic exam shows increased diameter and cupping of the optic disc, with vision loss due to loss of central retinal ganglia. Intraocular pressure is us ...
Macular Conditions - Northside Eyecare
... vision is more affected, surgery can be performed to remove the membrane and release the adhesions. OPTICAL COHERENCE TOMOGRAPHY (OCT) Recent developments in computer imaging technology allow us to easily and rapidly image the retina utilizing a three-dimensional cross-section. This revolutionary t ...
... vision is more affected, surgery can be performed to remove the membrane and release the adhesions. OPTICAL COHERENCE TOMOGRAPHY (OCT) Recent developments in computer imaging technology allow us to easily and rapidly image the retina utilizing a three-dimensional cross-section. This revolutionary t ...
Computer measurement of retinal nerve fiber layer
... measure defined as the mean of absolute differences between adjacent density values along arcs concentric with the optic disk as a measure of RNFL atrophy. This measure is highly sensitive to contrast and luminance changes between images. We have expanded and modified this approach using similar mea ...
... measure defined as the mean of absolute differences between adjacent density values along arcs concentric with the optic disk as a measure of RNFL atrophy. This measure is highly sensitive to contrast and luminance changes between images. We have expanded and modified this approach using similar mea ...
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.