Purtscher`s Retinopathy - Delhi Journal of Ophthalmology
... hemorrhages in the peri-papillary region and the macular area up to the mid periphery.5 Due to the peculiar anatomy of blood supply of peripapillary retina and macular area, the retinal changes are usually confined to these areas. The arterioles and capillaries in these areas are more susceptible to ...
... hemorrhages in the peri-papillary region and the macular area up to the mid periphery.5 Due to the peculiar anatomy of blood supply of peripapillary retina and macular area, the retinal changes are usually confined to these areas. The arterioles and capillaries in these areas are more susceptible to ...
Basic Ocular Anatomy
... •! Provides structural support to the eye and helps nourishes the retina. •! With age, may liquefy -> floaters. ...
... •! Provides structural support to the eye and helps nourishes the retina. •! With age, may liquefy -> floaters. ...
Diabetic retinopathy
... or IOL) to restore clear vision. The procedure typically is performed on an outpatient basis and does not require an overnight stay in a hospital or other care facility. ...
... or IOL) to restore clear vision. The procedure typically is performed on an outpatient basis and does not require an overnight stay in a hospital or other care facility. ...
Monitoring and management of steroid
... A steroid-induced rise in IOP may not be associated with optic nerve damage or vision loss, in which case it is termed steroidinduced ocular hypertension. Patients with healthy optic nerves can tolerate higher IOPs and longer periods of ocular hypertension before their nerves develop sufficient dama ...
... A steroid-induced rise in IOP may not be associated with optic nerve damage or vision loss, in which case it is termed steroidinduced ocular hypertension. Patients with healthy optic nerves can tolerate higher IOPs and longer periods of ocular hypertension before their nerves develop sufficient dama ...
Ch. 29 Presentation
... Two major types of image-forming eyes have evolved in the invertebrates. 1. Compound eyes of insects – consist of up to several thousand lenses – function as acute motion detectors, and – usually provide excellent color vision. ...
... Two major types of image-forming eyes have evolved in the invertebrates. 1. Compound eyes of insects – consist of up to several thousand lenses – function as acute motion detectors, and – usually provide excellent color vision. ...
Retinal nerve fibre layer loss in diabetes mellitus without retinopathy
... prospective study comparing viscocanalostomy with antimetabolite assisted trabeculectomy. In theory, the operation of viscocanalostomy is claimed to bring us one step closer to the restoration of normal drainage by dilating (with viscoelastic) and facilitating flow round Schlemm’s canal without macr ...
... prospective study comparing viscocanalostomy with antimetabolite assisted trabeculectomy. In theory, the operation of viscocanalostomy is claimed to bring us one step closer to the restoration of normal drainage by dilating (with viscoelastic) and facilitating flow round Schlemm’s canal without macr ...
Retinal nerve fibre layer loss in diabetes mellitus without retinopathy
... prospective study comparing viscocanalostomy with antimetabolite assisted trabeculectomy. In theory, the operation of viscocanalostomy is claimed to bring us one step closer to the restoration of normal drainage by dilating (with viscoelastic) and facilitating flow round Schlemm’s canal without macr ...
... prospective study comparing viscocanalostomy with antimetabolite assisted trabeculectomy. In theory, the operation of viscocanalostomy is claimed to bring us one step closer to the restoration of normal drainage by dilating (with viscoelastic) and facilitating flow round Schlemm’s canal without macr ...
Double vision
... tenderness, unexplained weight loss, or pain when chewing? Possible giant cell arteritis. ...
... tenderness, unexplained weight loss, or pain when chewing? Possible giant cell arteritis. ...
What are they? Flashers and floaters are visual perceptions such as
... Unusually large floaters that move across your visual field. They are most noticeable when looking at a white wall or clear sky. Most of the time flashes and floaters are harmless, but if you get a lot of both suddenly, possibly accompanied by peripheral (side) vision loss, it could indicate a r ...
... Unusually large floaters that move across your visual field. They are most noticeable when looking at a white wall or clear sky. Most of the time flashes and floaters are harmless, but if you get a lot of both suddenly, possibly accompanied by peripheral (side) vision loss, it could indicate a r ...
Visual Impairment The paediatricians perspective
... Poorer than normal Normal Better than normal ...
... Poorer than normal Normal Better than normal ...
Intraocular pressure (IOP) and tonometry
... as for glaucoma or combinations of uveitis and glaucoma. Low intraocular pressure – ocular hypotension The most common cause of ocular hypotension is intraocular inflammation (uveitis). Acute anterior uveitis (iritis) is a painful condition causing photophobia and blepharospasm. Affected eyes are re ...
... as for glaucoma or combinations of uveitis and glaucoma. Low intraocular pressure – ocular hypotension The most common cause of ocular hypotension is intraocular inflammation (uveitis). Acute anterior uveitis (iritis) is a painful condition causing photophobia and blepharospasm. Affected eyes are re ...
research day - Faculty of Medicine
... Purpose: DENAQ, BENAQ, and AAQ are a family of novel membrane photoswitch protein which target retinal ganglion cells to provide light-induced depolarization. In this way, they show promise as a chemical visual prosthesis to recreate visual function where photoreceptors are damaged beyond repair but ...
... Purpose: DENAQ, BENAQ, and AAQ are a family of novel membrane photoswitch protein which target retinal ganglion cells to provide light-induced depolarization. In this way, they show promise as a chemical visual prosthesis to recreate visual function where photoreceptors are damaged beyond repair but ...
Aberrant Regeneration of the Third Nerve
... injury inducing chromatolysis in the nerve cell body spreading to its central connections. This leads to oculomotor subnuclei reorganization resulting in aberrant regeneration. In this study, third nerve palsy resulting in ‘misdirection’ was due to traumatic head injury in all cases(1,3). Unfortunat ...
... injury inducing chromatolysis in the nerve cell body spreading to its central connections. This leads to oculomotor subnuclei reorganization resulting in aberrant regeneration. In this study, third nerve palsy resulting in ‘misdirection’ was due to traumatic head injury in all cases(1,3). Unfortunat ...
Idiopathic Choroidal Neovascularization
... If the patient has progressively declining vision, and the blood vessel is not growing directly under the center of the macula, thermal laser treatment may be offered to stop the course. The blood vessel is cauterized by this procedure. A blind spot corresponding to the site of laser is a side effec ...
... If the patient has progressively declining vision, and the blood vessel is not growing directly under the center of the macula, thermal laser treatment may be offered to stop the course. The blood vessel is cauterized by this procedure. A blind spot corresponding to the site of laser is a side effec ...
Thyroid Eye Disease
... undergoing progressive change, we may correct them now but have things change within the next few months. Often multiple muscle operations are necessary. It is sometimes not possible to completely remove double vision, but the goal is to remove double vision looking straight ahead and in reading pos ...
... undergoing progressive change, we may correct them now but have things change within the next few months. Often multiple muscle operations are necessary. It is sometimes not possible to completely remove double vision, but the goal is to remove double vision looking straight ahead and in reading pos ...
CE horses or zebras Monterey handout
... with neck or shoulder pain – May last for days – Continuous pain; occurs on palpation posterior neck muscles – #1 cause of tension headache- stress – Associated with school -straight A students at-risk – Contributing factors- poor eating habits, lack of sleep, depression, bullying classmates, f ...
... with neck or shoulder pain – May last for days – Continuous pain; occurs on palpation posterior neck muscles – #1 cause of tension headache- stress – Associated with school -straight A students at-risk – Contributing factors- poor eating habits, lack of sleep, depression, bullying classmates, f ...
Glaucoma - Wikispaces
... • A small proportion of the aqueous (4%) drains across the ciliary body into the suprachoroidal space and into the venous circulation across the sclera (uveoscleral pathway). • The intraocular pressure level depends on the balance between production and removal of aqueous humour. ...
... • A small proportion of the aqueous (4%) drains across the ciliary body into the suprachoroidal space and into the venous circulation across the sclera (uveoscleral pathway). • The intraocular pressure level depends on the balance between production and removal of aqueous humour. ...
MINISTRY OF HEALTH OF THE REPUBLIC OF UZBEKISTAN
... The anterior optic nerve is supplied by branches from the ciliary arteries.The retina is supplied by arterioles branching from the central retinal artery.These arterioles each supply an area of retina with little overlap.Obstruction results in ischaemia of most of the area supplied by that arteriole ...
... The anterior optic nerve is supplied by branches from the ciliary arteries.The retina is supplied by arterioles branching from the central retinal artery.These arterioles each supply an area of retina with little overlap.Obstruction results in ischaemia of most of the area supplied by that arteriole ...
ophthalmoscopy with scleral indentation. He suggested that
... Diffuse or multifocal seeding of the leptomeninges by carcinoma, so-called meningeal carcinomatosis, often presents as simultaneous or rapidly sequential cranial neuropathy, with or without headache, altered mental status, or signs of meningeal irritation. Visual loss may occur in up to 30% of these ...
... Diffuse or multifocal seeding of the leptomeninges by carcinoma, so-called meningeal carcinomatosis, often presents as simultaneous or rapidly sequential cranial neuropathy, with or without headache, altered mental status, or signs of meningeal irritation. Visual loss may occur in up to 30% of these ...
The Argyll Robertson pupil
... fingers 9. The lesion begins as a small, red bump which erupts into an open, raw ulcer. While the sore does not bleed, it does ooze a clear fluid that is inundated with the infectious organism and is highly contagious. The sore typically heals in three to 12 weeks6,9. At this stage, a detailed histo ...
... fingers 9. The lesion begins as a small, red bump which erupts into an open, raw ulcer. While the sore does not bleed, it does ooze a clear fluid that is inundated with the infectious organism and is highly contagious. The sore typically heals in three to 12 weeks6,9. At this stage, a detailed histo ...
Epiretinal Membranes (ERMs), also commonly
... causing micro-tears and symptoms of floaters and flashes. If there is no specific cause apart from the PVD, the ERM is called idiopathic (of unknown origin). ERMs can be associated with a number of ocular conditions such as prior retinal tears or detachment, retinal vascular diseases such as diabe ...
... causing micro-tears and symptoms of floaters and flashes. If there is no specific cause apart from the PVD, the ERM is called idiopathic (of unknown origin). ERMs can be associated with a number of ocular conditions such as prior retinal tears or detachment, retinal vascular diseases such as diabe ...
Epiretinal Membranes (ERMs), also commonly
... causing micro-tears and symptoms of floaters and flashes. If there is no specific cause apart from the PVD, the ERM is called idiopathic (of unknown origin). ERMs can be associated with a number of ocular conditions such as prior retinal tears or detachment, retinal vascular diseases such as diabe ...
... causing micro-tears and symptoms of floaters and flashes. If there is no specific cause apart from the PVD, the ERM is called idiopathic (of unknown origin). ERMs can be associated with a number of ocular conditions such as prior retinal tears or detachment, retinal vascular diseases such as diabe ...
The history of the meaning of the word Glaucoma
... incapacitating increased eye tension occurring without any inflammatory symptoms as Simple Glaucoma. The concept of glaucoma has been further refined, particularly over the last 100 years. Dr Drance (1973) provided for the first time the definition of glaucoma as a disease of the optic nerve (an opt ...
... incapacitating increased eye tension occurring without any inflammatory symptoms as Simple Glaucoma. The concept of glaucoma has been further refined, particularly over the last 100 years. Dr Drance (1973) provided for the first time the definition of glaucoma as a disease of the optic nerve (an opt ...
The history of the meaning of the word Glaucoma
... incapacitating increased eye tension occurring without any inflammatory symptoms as Simple Glaucoma. The concept of glaucoma has been further refined, particularly over the last 100 years. Dr Drance (1973) provided for the first time the definition of glaucoma as a disease of the optic nerve (an opt ...
... incapacitating increased eye tension occurring without any inflammatory symptoms as Simple Glaucoma. The concept of glaucoma has been further refined, particularly over the last 100 years. Dr Drance (1973) provided for the first time the definition of glaucoma as a disease of the optic nerve (an opt ...
Idiopathic intracranial hypertension
Idiopathic intracranial hypertension (IIH), sometimes called by the older names benign intracranial hypertension (BIH) or pseudotumor cerebri (PTC), is a neurological disorder that is characterized by increased intracranial pressure (pressure around the brain) in the absence of a tumor or other diseases. The main symptoms are headache, nausea, and vomiting, as well as pulsatile tinnitus (sounds perceived in the ears, with the sound occurring in the same rhythm as the pulse), double vision and other visual symptoms. If untreated, it may lead to swelling of the optic disc in the eye, which can progress to vision loss.IIH is diagnosed with a brain scan (to rule out other causes) and a lumbar puncture; lumbar puncture may also provide temporary and sometimes permanent relief from the symptoms. Some respond to medication (with the drug acetazolamide), but others require surgery to relieve the pressure. The condition may occur in all age groups, but is most common in women aged 20–40, especially those with obesity.