nystagmus 2013
... onset 3months- 18 months, resolves between 3 years of age. Glioma of the optic chiasm needs to be ruled out Latent nystagmus: worsens when one eye is closed Nystagmus blockage syndrome:strabismus with eyes and head in a position to minimize associated nystagmus ...
... onset 3months- 18 months, resolves between 3 years of age. Glioma of the optic chiasm needs to be ruled out Latent nystagmus: worsens when one eye is closed Nystagmus blockage syndrome:strabismus with eyes and head in a position to minimize associated nystagmus ...
lasik and arcuate incisions for the treatment
... decimal notation. - Optimal subjective refraction. - Keratometry (KM) measured with the EyeSys, a placido ring-based video-keratography. Corneal uniformity index (CU index) and predicted corneal acuity (PC acuity) were recorded from the Holladay Diagnostic Summary (HDS) maps. Because the EyeSys refe ...
... decimal notation. - Optimal subjective refraction. - Keratometry (KM) measured with the EyeSys, a placido ring-based video-keratography. Corneal uniformity index (CU index) and predicted corneal acuity (PC acuity) were recorded from the Holladay Diagnostic Summary (HDS) maps. Because the EyeSys refe ...
Evaluation and Management of Sus
... vision persists. Visual loss from a transient ischemic attack may be unilateral, but is episodic, not persistent or progressive as in cases of retinal detachment, and may be accompanied by other neurologic symptoms. Fixed field defects of variable size occur in patients with retinal vascular occlusi ...
... vision persists. Visual loss from a transient ischemic attack may be unilateral, but is episodic, not persistent or progressive as in cases of retinal detachment, and may be accompanied by other neurologic symptoms. Fixed field defects of variable size occur in patients with retinal vascular occlusi ...
Visual Field Testing
... Thyrotoxicosis with diffuse goiter without thyrotoxic crisis or storm Thyrotoxicosis with diffuse goiter with thyrotoxic crisis or storm Thyrotoxicosis with toxic single thyroid nodule without thyrotoxic crisis or storm Thyrotoxicosis with toxic single thyroid nodule with thyrotoxic crisis or storm ...
... Thyrotoxicosis with diffuse goiter without thyrotoxic crisis or storm Thyrotoxicosis with diffuse goiter with thyrotoxic crisis or storm Thyrotoxicosis with toxic single thyroid nodule without thyrotoxic crisis or storm Thyrotoxicosis with toxic single thyroid nodule with thyrotoxic crisis or storm ...
Monte Carlo dosimetry of the eye plaque design brachytherapy
... y plane. The 10 seeds are arranged with 7 seeds close to the edge of the plaque and 3 seeds in an equilateral triangle close to the center of the plaque. The 7 seeds are positioned 2.0 mm from the edge of the plaque. They lie on an isocentric circle with circumference 49 mm. Each seeds is 4.5 mm lo ...
... y plane. The 10 seeds are arranged with 7 seeds close to the edge of the plaque and 3 seeds in an equilateral triangle close to the center of the plaque. The 7 seeds are positioned 2.0 mm from the edge of the plaque. They lie on an isocentric circle with circumference 49 mm. Each seeds is 4.5 mm lo ...
View Sample Lesson in Word Format
... active role in adjusting to life with glaucoma. This course consists of five lessons. Lesson 1 discusses the human eye and several forms of glaucoma. Lesson 2 explains how glaucoma is diagnosed. Lesson 3 describes treatments for this disease. Lesson 4 discusses the emotional impact of the visual imp ...
... active role in adjusting to life with glaucoma. This course consists of five lessons. Lesson 1 discusses the human eye and several forms of glaucoma. Lesson 2 explains how glaucoma is diagnosed. Lesson 3 describes treatments for this disease. Lesson 4 discusses the emotional impact of the visual imp ...
Role of Conjunctival Inflammation in Surgical Outcome After
... and in 8 and 7 recurrent pterygia, respectively. The mean surgical time was significantly shorter in eyes with fibrin glue than in eyes with sutures (46.4 6 13.6 vs. 77 6 27.4 minutes, respectively; P = 0.003). Conjunctival epithelial defect over the amniotic membrane healed within 2, 4, and 8 weeks ...
... and in 8 and 7 recurrent pterygia, respectively. The mean surgical time was significantly shorter in eyes with fibrin glue than in eyes with sutures (46.4 6 13.6 vs. 77 6 27.4 minutes, respectively; P = 0.003). Conjunctival epithelial defect over the amniotic membrane healed within 2, 4, and 8 weeks ...
surgery of the conjunctiva and cornea
... blood vessels. It is quite easy to remove a pterygium, but unfortunately it nearly always grows again. There seem to be two reasons for such a high incidence of recurrence following excision. 1. The pterygium is scar tissue which contains fibroblasts, so excising it only stimulates these fibroblasts ...
... blood vessels. It is quite easy to remove a pterygium, but unfortunately it nearly always grows again. There seem to be two reasons for such a high incidence of recurrence following excision. 1. The pterygium is scar tissue which contains fibroblasts, so excising it only stimulates these fibroblasts ...
This article was originally published in the Encyclopedia of the Eye
... angle–2), holding relatively well between 1 and 30 . As this approximation also holds for aging eyes, including cataracts and other conditions, for most applications, a measurement at one angle suffices. As a consequence, the PSF multiplied with y2 (the definition of the straylight parameter s) is ...
... angle–2), holding relatively well between 1 and 30 . As this approximation also holds for aging eyes, including cataracts and other conditions, for most applications, a measurement at one angle suffices. As a consequence, the PSF multiplied with y2 (the definition of the straylight parameter s) is ...
Disconjugate adaptation to long-standing, large-amplitude
... A 12-yr-old anisometropic patient had worn corrective eyeglasses (right eye, -0.50 +1.50 X 125; LE, -9.75 +2.50 X 60) for 7 yr, and then changed to contact lenses. Eye movements were recorded before and after the change to contact lenses using binocular search coils. In habitual spectacle viewing, t ...
... A 12-yr-old anisometropic patient had worn corrective eyeglasses (right eye, -0.50 +1.50 X 125; LE, -9.75 +2.50 X 60) for 7 yr, and then changed to contact lenses. Eye movements were recorded before and after the change to contact lenses using binocular search coils. In habitual spectacle viewing, t ...
Intra-ocular Pressure
... exerts a surface tension (force in towards the cornea) b. a probe applied to the cornea is acted against (a force pushing out from the cornea) by the corneal thickness and elasticity (the bending force) ...
... exerts a surface tension (force in towards the cornea) b. a probe applied to the cornea is acted against (a force pushing out from the cornea) by the corneal thickness and elasticity (the bending force) ...
Posterior Vitreous Detachment and Its Sequellae
... which often can be seen just behind the lens with slit lamp biomicroscopy. A positive Schaeffer’s sign is nearly always associated with a retinal tear. Patients developing vitreous detachments frequently complain of flashing lights (photopsias). These are caused by intermittent vitreous traction on ...
... which often can be seen just behind the lens with slit lamp biomicroscopy. A positive Schaeffer’s sign is nearly always associated with a retinal tear. Patients developing vitreous detachments frequently complain of flashing lights (photopsias). These are caused by intermittent vitreous traction on ...
Hyperopia - Diamond Vision
... anteriorly, thereby causing hyperopia. • Cycloplegic agents may induce hyperopia by affecting accommodation, and a variety of other drugs can produce transient hyperopia. ...
... anteriorly, thereby causing hyperopia. • Cycloplegic agents may induce hyperopia by affecting accommodation, and a variety of other drugs can produce transient hyperopia. ...
Corneal Transplant, Endothelial Keratoplasty
... and the endothelium. The established surgical treatment for corneal disease is penetrating keratoplasty (PK), which involves making a large central opening through the cornea and then filling the opening with full-thickness donor cornea. In certain conditions, such as StevensJohnson syndrome; cicatr ...
... and the endothelium. The established surgical treatment for corneal disease is penetrating keratoplasty (PK), which involves making a large central opening through the cornea and then filling the opening with full-thickness donor cornea. In certain conditions, such as StevensJohnson syndrome; cicatr ...
Journal Lis2
... thicker corneas (>550 μm) had IOP differences of ≥3 mmHg, while some eyes with thinner corneas (<550 μm) had IOP differences of ≤2 mmHg. The effect of corneal curvature on DCT measurements is controversial.18,23,24 This study, including eyes with < ± 2.0 dpt ammetropia, did not reveal any significan ...
... thicker corneas (>550 μm) had IOP differences of ≥3 mmHg, while some eyes with thinner corneas (<550 μm) had IOP differences of ≤2 mmHg. The effect of corneal curvature on DCT measurements is controversial.18,23,24 This study, including eyes with < ± 2.0 dpt ammetropia, did not reveal any significan ...
Oman Eye Study 2005: prevalence and determinants of glaucoma
... forms were also tested on 86 individuals in a village (Al Amerat) which was not part of the study. The results suggested the agreement rate of measuring ocular pressure by TonoPen and applanation tonometer was > 80% and variation of ocular pressure by 2 methods was < 2 mmHg. We also assessed the int ...
... forms were also tested on 86 individuals in a village (Al Amerat) which was not part of the study. The results suggested the agreement rate of measuring ocular pressure by TonoPen and applanation tonometer was > 80% and variation of ocular pressure by 2 methods was < 2 mmHg. We also assessed the int ...
Prism Cover Test
... Give the least amount of prism that will accomplish steady fusion – start with ½ the measured amount in primary position and increase until steady fusion Patients typically do not move their eye laterally more than 10 – 12 degrees If bifocals, make sure that if no diplopia at distance that acceptabl ...
... Give the least amount of prism that will accomplish steady fusion – start with ½ the measured amount in primary position and increase until steady fusion Patients typically do not move their eye laterally more than 10 – 12 degrees If bifocals, make sure that if no diplopia at distance that acceptabl ...
vision - University of Illinois College of Medicine at Chicago
... Despite the challenges of limits on federal funding to the National Institutes of Health, our basic science research program remains very strong especially with the recruitment of Drs. Dingcai Cao and Jason McAnany, both Principal Investigators for National Eye Institute grants. The departmental cor ...
... Despite the challenges of limits on federal funding to the National Institutes of Health, our basic science research program remains very strong especially with the recruitment of Drs. Dingcai Cao and Jason McAnany, both Principal Investigators for National Eye Institute grants. The departmental cor ...
Vision Rehabilitation PPP - American Academy of Ophthalmology
... All ophthalmologists are encouraged to provide information about rehabilitation resources for patients who have vision loss. Even early or moderate vision loss causes disability, and it can cause great anxiety and affect visual performance. When available, consider referral for multidisciplinary vis ...
... All ophthalmologists are encouraged to provide information about rehabilitation resources for patients who have vision loss. Even early or moderate vision loss causes disability, and it can cause great anxiety and affect visual performance. When available, consider referral for multidisciplinary vis ...
An Incremental Retinal-Defocus Theory of the Development of Myopia
... In contrast, our recent unifying theory of refractive error development was able to account for all known clinical and laboratory experimental results (Hung and Ciuffreda 1999, 2000a, 2000b, 2000c, 2002). Two fundamental insights underlie our incremental retinal-defocus theory, which for simplicity ...
... In contrast, our recent unifying theory of refractive error development was able to account for all known clinical and laboratory experimental results (Hung and Ciuffreda 1999, 2000a, 2000b, 2000c, 2002). Two fundamental insights underlie our incremental retinal-defocus theory, which for simplicity ...
The incidence of fungal keratitis in Zagazig University
... Corneal infection is a leading cause of ocular morbidity and blindness worldwide. Early diagnosis and treatment are important in preventing vision threatening complications.13 Early diagnosis of mycoses in patients is crucial for prompt antifungal therapy.14 In this study, the frequency of fungal ke ...
... Corneal infection is a leading cause of ocular morbidity and blindness worldwide. Early diagnosis and treatment are important in preventing vision threatening complications.13 Early diagnosis of mycoses in patients is crucial for prompt antifungal therapy.14 In this study, the frequency of fungal ke ...
Vitreous Hemorrhage Focal Points
... Clinical Education Division for more information. ©2000 The Foundati on of The American Academy of Ophthalmology. ®All rights reserved. The Academy provides this material for educational purposes onl y. It is not intended to represent the only or best method or procedure in every case, nor to replac ...
... Clinical Education Division for more information. ©2000 The Foundati on of The American Academy of Ophthalmology. ®All rights reserved. The Academy provides this material for educational purposes onl y. It is not intended to represent the only or best method or procedure in every case, nor to replac ...
Tfos CLDW Report Executive Summary
... associated directly with CLD. Studies evaluating these factors, however, can be difficult to draw conclusions from in that they are confounded with differing designs, lack of rigor, lack of consistent definitions (e.g., of discomfort), and an inability to hold the design constant when testing the in ...
... associated directly with CLD. Studies evaluating these factors, however, can be difficult to draw conclusions from in that they are confounded with differing designs, lack of rigor, lack of consistent definitions (e.g., of discomfort), and an inability to hold the design constant when testing the in ...
Rosacea: causes and treatments
... Dd counts in patients with pityriasis folliculorum range from 61 to 308 mites per cm2. Pityriasis folliculorum is typically seen in older women who do not use soap and apply large amounts of makeup. There is no animal model for demodex infestation because the mite is an obligate human parasite. It i ...
... Dd counts in patients with pityriasis folliculorum range from 61 to 308 mites per cm2. Pityriasis folliculorum is typically seen in older women who do not use soap and apply large amounts of makeup. There is no animal model for demodex infestation because the mite is an obligate human parasite. It i ...