IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... flatten and thinner corneas would require less. This meant that thicker corneas yielded an overestimation of intraocular pressure, whereas thinner corneas resulted in underestimation1. In the 1970s, Ehlers et al performed a number of studies assessing the effect of CCT on IOP. They cannulated 29 oth ...
... flatten and thinner corneas would require less. This meant that thicker corneas yielded an overestimation of intraocular pressure, whereas thinner corneas resulted in underestimation1. In the 1970s, Ehlers et al performed a number of studies assessing the effect of CCT on IOP. They cannulated 29 oth ...
EVERYTHING THERAPEUTIC: SAN ANTONIO
... a. A vitreoretinal disorder producing traction on the macula b. Can cause macular pucker or folds or the macula can look normal c. Can mimic a juvenile foveal retinoschisis d. SD-OCT i. very valuable in demonstrating vitreal traction e. Management i. Monitor 1. Spontaneous resolution into a PVD can ...
... a. A vitreoretinal disorder producing traction on the macula b. Can cause macular pucker or folds or the macula can look normal c. Can mimic a juvenile foveal retinoschisis d. SD-OCT i. very valuable in demonstrating vitreal traction e. Management i. Monitor 1. Spontaneous resolution into a PVD can ...
Non-conventional perimetric methods in the detection of
... frequency that is doubled. Numerous studies have shown that FDT is able to detect VF loss before SAP14 and that it can predict the progression and morphology of future SAP VF defects.15 Rarebit perimetry is a perimetric method developed by Frisén8,16 in 2002. It utilises spatially and temporally mi ...
... frequency that is doubled. Numerous studies have shown that FDT is able to detect VF loss before SAP14 and that it can predict the progression and morphology of future SAP VF defects.15 Rarebit perimetry is a perimetric method developed by Frisén8,16 in 2002. It utilises spatially and temporally mi ...
Choroidal Detachment - The Retina Reference
... After glaucoma surgery, in which an exit passage for ocular fluid is desired, a period of observation is usually first recommended. Some cases are treated with prednisone, a steroid for control of inflammation and reduction of blood vessel leaking. If the choroidal detachments are severe or prolonge ...
... After glaucoma surgery, in which an exit passage for ocular fluid is desired, a period of observation is usually first recommended. Some cases are treated with prednisone, a steroid for control of inflammation and reduction of blood vessel leaking. If the choroidal detachments are severe or prolonge ...
Experimental animal models of induced intraocular hypertension
... 3. The aqueous humor outflow pathway In humans, the aqueous humor is produced by the ciliary epithelium at the ciliary processes in the pars plicata of the ciliary body, and is secreted into the posterior chamber. It flows between the lens and the iris, through the pupil and into the anterior chamb ...
... 3. The aqueous humor outflow pathway In humans, the aqueous humor is produced by the ciliary epithelium at the ciliary processes in the pars plicata of the ciliary body, and is secreted into the posterior chamber. It flows between the lens and the iris, through the pupil and into the anterior chamb ...
Tonometer through the eyelid diaton: accuracy and quick IOP reading
... Tonometer through the eyelid diaton: accuracy and quick IOP reading. Juan Conzalo Carracedo Rodriguez, MSc, PhD Introduction Glaucoma is the pathology that mainly stems from intraocular pressure (IOP) rise and leads to intense damage of the visual nerve and loss of vision. It is the second most comm ...
... Tonometer through the eyelid diaton: accuracy and quick IOP reading. Juan Conzalo Carracedo Rodriguez, MSc, PhD Introduction Glaucoma is the pathology that mainly stems from intraocular pressure (IOP) rise and leads to intense damage of the visual nerve and loss of vision. It is the second most comm ...
Assessment of the anterior chamber angle and depth
... gonio-lens before it is placed against the patient’s eye. Lenses with a phlange (or lip) are a little easier to keep on the eye as the phlange stays just under the eyelid making it more difficult for the patient to accidently blink the lens out. Lenses are available in one, two, three and four mirro ...
... gonio-lens before it is placed against the patient’s eye. Lenses with a phlange (or lip) are a little easier to keep on the eye as the phlange stays just under the eyelid making it more difficult for the patient to accidently blink the lens out. Lenses are available in one, two, three and four mirro ...
General Objectives: 1. Describe basic tenets of the fundamentals of
... Neuro-Ophthalmology 7.00am-12.15pm ...
... Neuro-Ophthalmology 7.00am-12.15pm ...
"Contact lens" cornea in rheumatoid arthritis
... Senile marginal degeneration usually affects the interpalpebral area and does not often extend completely round the periphery of the cornea. A very similar appearance on superficial examination may be seen in uveo-keratitis with sclerosing keratitis; this is illustrated by the two following patients ...
... Senile marginal degeneration usually affects the interpalpebral area and does not often extend completely round the periphery of the cornea. A very similar appearance on superficial examination may be seen in uveo-keratitis with sclerosing keratitis; this is illustrated by the two following patients ...
SELECTIVE LASER TRABECULOPLASTY: A COMPREHENSIVE
... A highly effective approach for first-line glaucoma treatment, as adjunct therapy with drugs, and as alternative therapy when drugs or surgery fail, selective laser trabeculoplasty (SLT) has become an essential tool in the glaucoma treatment armamentarium. According to Savak Teymoorian, MD, MBA, a c ...
... A highly effective approach for first-line glaucoma treatment, as adjunct therapy with drugs, and as alternative therapy when drugs or surgery fail, selective laser trabeculoplasty (SLT) has become an essential tool in the glaucoma treatment armamentarium. According to Savak Teymoorian, MD, MBA, a c ...
Session 150 Pharmacology and cellular mechanisms
... Purpose: Primary open-angle glaucoma (POAG) has been primarily associated with reduced aqueous humor outflow facility through trabecular meshwork (TM) and elevated intraocular pressure (IOP). Studies based on both human as well as mice models revealed that chronic endoplasmic reticulum (ER) stress i ...
... Purpose: Primary open-angle glaucoma (POAG) has been primarily associated with reduced aqueous humor outflow facility through trabecular meshwork (TM) and elevated intraocular pressure (IOP). Studies based on both human as well as mice models revealed that chronic endoplasmic reticulum (ER) stress i ...
Effect of Calcium Channel Blockers on Intraocular Pressure in Rabbits
... nifedipine in albino rabbits. Abelson et al. [ 16] and Mooshian et al. [ 18] noted a contralateral effect of topically applied verapamil in ocular hypertensive subjects, whereas Netland et al. [ 19] reported no effect of verapamil on IOP in the contralateral eye after topical administration in norma ...
... nifedipine in albino rabbits. Abelson et al. [ 16] and Mooshian et al. [ 18] noted a contralateral effect of topically applied verapamil in ocular hypertensive subjects, whereas Netland et al. [ 19] reported no effect of verapamil on IOP in the contralateral eye after topical administration in norma ...
Chapter 6
... The Schiotz tonometer continues to be a widely used instrument for estimation of intraocular pressure because it offers a reasonable combination of convenience and reliability. It is subject to more error than the Goldmann applanation tonometer, but the Schiotz tonometer has advantages in portabili ...
... The Schiotz tonometer continues to be a widely used instrument for estimation of intraocular pressure because it offers a reasonable combination of convenience and reliability. It is subject to more error than the Goldmann applanation tonometer, but the Schiotz tonometer has advantages in portabili ...
sample
... a. “Cataracts occur as a result of aging.” b. “Cataracts occur as a result of congenital defects.” c. “Cataracts occur as a result of systemic diseases characterized by metabolic problems.” d. “Cataracts occur as a result of uveitis.” ANS: A A cataract occurs when the lens or its capsule loses its t ...
... a. “Cataracts occur as a result of aging.” b. “Cataracts occur as a result of congenital defects.” c. “Cataracts occur as a result of systemic diseases characterized by metabolic problems.” d. “Cataracts occur as a result of uveitis.” ANS: A A cataract occurs when the lens or its capsule loses its t ...
as a PDF
... Purpose: To report two cases with neovascular glaucoma secondary to ischemic central retinal vein occlusion (CRVO) who were treated with intravitreal bevacizumab. Case Report: Two patients were referred for neovascular glaucoma following CRVO. Visual acuity was light perception. Both eyes had extens ...
... Purpose: To report two cases with neovascular glaucoma secondary to ischemic central retinal vein occlusion (CRVO) who were treated with intravitreal bevacizumab. Case Report: Two patients were referred for neovascular glaucoma following CRVO. Visual acuity was light perception. Both eyes had extens ...
reviews - Advances in Clinical and Experimental Medicine
... accounts for about 90% of cases. Exudative (wet) AMD affects only 10–20% of all patients with AMD, but leads to severe vision loss. This form of AMD is characterized by choroidal neovascular lesions and abnormal vessels which grow under the retina, causing leakage. There are two basic forms of laser ...
... accounts for about 90% of cases. Exudative (wet) AMD affects only 10–20% of all patients with AMD, but leads to severe vision loss. This form of AMD is characterized by choroidal neovascular lesions and abnormal vessels which grow under the retina, causing leakage. There are two basic forms of laser ...
Experimental tonography on enucleated human eyes. I. The
... in the formula are known? To our knowledge, dV has ne^er been determined experimentally. Both the volume and the pressure components in the formula are usually calculated according to Friedenwald's formulas and tables.'" Thus, in the experiments of Becker and Constant/' the tonographically calculate ...
... in the formula are known? To our knowledge, dV has ne^er been determined experimentally. Both the volume and the pressure components in the formula are usually calculated according to Friedenwald's formulas and tables.'" Thus, in the experiments of Becker and Constant/' the tonographically calculate ...
Iris
... Short posterior ciliary arteries Two Long posterior ciliary arteries Seven anterior ciliary arteries ...
... Short posterior ciliary arteries Two Long posterior ciliary arteries Seven anterior ciliary arteries ...
6. Ocular Disease: Shared Care and Co
... such as Orbscan II provide wide-field pachymetry information in addition to keratometric maps. Referral for corneal transplantation Corneal transplantation has been attempted in a variety of forms for almost 200 years, but it was not until 1905 that the first report of a successful human corneal tra ...
... such as Orbscan II provide wide-field pachymetry information in addition to keratometric maps. Referral for corneal transplantation Corneal transplantation has been attempted in a variety of forms for almost 200 years, but it was not until 1905 that the first report of a successful human corneal tra ...
Glaucoma-II Free Papers
... with angle closure tend to have shallow anterior chambers and thick, anteriorly positioned lenses when compared with normal eyes. Removing the lens creates more space in the anterior chamber and widens the angle, which may be enough to achieve intraocular pressure (IOP) control. The role of lens ext ...
... with angle closure tend to have shallow anterior chambers and thick, anteriorly positioned lenses when compared with normal eyes. Removing the lens creates more space in the anterior chamber and widens the angle, which may be enough to achieve intraocular pressure (IOP) control. The role of lens ext ...
Glaucoma: Macrocosm to Microcosm The
... than random screening. The exciting era of specific OAG genes began with the discovery of myocilin by Stone, Fingert, and Alward,42 but we must heed the lesson of other disorders in which mutations in different genes are associated with similar phenotype, mutations in a single gene that cause differ ...
... than random screening. The exciting era of specific OAG genes began with the discovery of myocilin by Stone, Fingert, and Alward,42 but we must heed the lesson of other disorders in which mutations in different genes are associated with similar phenotype, mutations in a single gene that cause differ ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... Intraocular Pressure (IOP) is the fluid pressure exerted by the intraocular fluid of the anterior cavity Aqueous humour (Normal IOP-10-20mmHg). IOP is determined mainly by the balance between the production and drainage of aqueous humour[1,2].Disparity in the production/drainage system of aqueous hu ...
... Intraocular Pressure (IOP) is the fluid pressure exerted by the intraocular fluid of the anterior cavity Aqueous humour (Normal IOP-10-20mmHg). IOP is determined mainly by the balance between the production and drainage of aqueous humour[1,2].Disparity in the production/drainage system of aqueous hu ...
Feline ophthalmology Part 2
... the feline eye, along with severe trauma, are thought to be possible causes for the much later development of intraocular spindle cell sarcoma (Figure 16). The sarcomas are aggressive, and they can invade the optic nerve and grow towards the brain. These posttraumatic sarcomas develop years later an ...
... the feline eye, along with severe trauma, are thought to be possible causes for the much later development of intraocular spindle cell sarcoma (Figure 16). The sarcomas are aggressive, and they can invade the optic nerve and grow towards the brain. These posttraumatic sarcomas develop years later an ...
CAnine Red eye - Today`s Veterinary Practice
... Primary glaucoma (Figure 10, page 15) in dogs is almost always unilateral and often associated with a narrow or closed filtration angle. • Once glaucoma becomes severe, episcleral injection is the predominate cause of redness. • Increased IOP typically results in slow pupillary light responses and ...
... Primary glaucoma (Figure 10, page 15) in dogs is almost always unilateral and often associated with a narrow or closed filtration angle. • Once glaucoma becomes severe, episcleral injection is the predominate cause of redness. • Increased IOP typically results in slow pupillary light responses and ...
Difference in the anterior chamber angle of the four meridians
... be noted, the risk of acute angle closure in an asian group of subjects has in contrast to this shown to be low [8]. In addition to this studies have shown significant results of increasing pressure after dilation, especially in patients with open-angle glaucoma where elevation of more than 5 mmHg i ...
... be noted, the risk of acute angle closure in an asian group of subjects has in contrast to this shown to be low [8]. In addition to this studies have shown significant results of increasing pressure after dilation, especially in patients with open-angle glaucoma where elevation of more than 5 mmHg i ...
Glaucoma
Glaucoma is a term for a group of eye disorders which result in damage to the optic nerve. This is most often due to increased pressure in the eye. The disorders can be roughly divided into two main categories: ""open-angle"" and ""closed-angle"" (or ""angle closure"") glaucoma. Open-angle chronic glaucoma is painless, tends to develop slowly over time and often has no symptoms until the disease has progressed significantly. It is treated with either glaucoma medication to lower the pressure, or with various pressure-reducing glaucoma surgeries. Closed-angle glaucoma, however, is characterized by sudden eye pain, redness, nausea and vomiting, and other symptoms resulting from a sudden spike in intraocular pressure, and is treated as a medical emergency. Glaucoma can permanently damage vision in the affected eye(s), first by decreasing peripheral vision (reducing the visual field), and then potentially leading to blindness if left untreated.The many different subtypes of glaucoma can all be considered to be a type of optic neuropathy. The nerve damage involves loss of retinal ganglion cells in a characteristic pattern. Raised intraocular pressure (above 21 mmHg or 2.8 kPa) is the most important and only modifiable risk factor for glaucoma. Some may have high eye pressure for years and never develop damage, a condition known as ""ocular hypertension"". Conversely, the term 'low tension' or 'normal tension' glaucoma is used for those with optic nerve damage and associated visual field loss, but normal or low intraocular pressure.Glaucoma has been called the ""silent thief of sight"" because the loss of vision often occurs gradually over a long period of time, and symptoms only occur when the disease is quite advanced. Worldwide, glaucoma is the second-leading cause of blindness after cataracts. It is also the leading cause of blindness among African Americans.If the condition is detected early enough, it is possible to arrest the development or slow the progression with medical and surgical means. Although the term ""glaucoma"" has a history relating to disorders of the eye going back to ancient Greece, in English the word was not commonly used until after 1850, when the development of the ophthalmoscope permitted visualization of the optic nerve damage caused by glaucoma.