ocular accommodation - department of ophthalmology
... fibres, involved in the accommodative process. The major innervation to the ciliary muscle is parasympathetic and originate in the Edinger-Westphal nucleus. The fibres follow Nervus oculomotorius and synapse in the ciliary ganglion. Most of the postganglionic parasympathetic fibres travel to the cil ...
... fibres, involved in the accommodative process. The major innervation to the ciliary muscle is parasympathetic and originate in the Edinger-Westphal nucleus. The fibres follow Nervus oculomotorius and synapse in the ciliary ganglion. Most of the postganglionic parasympathetic fibres travel to the cil ...
Clinical outcomes after Ahmed valve implantation in
... haemorrhage and adhesion of the incision lips.12,13 Trabeculectomy also shows encouraging results, and may be supplemented by mitomycin C or combined with trabeculotomy.14–18 However, overall success rates after paediatric glaucoma surgery range from 60 to 92%, with the rates declining over time. Fu ...
... haemorrhage and adhesion of the incision lips.12,13 Trabeculectomy also shows encouraging results, and may be supplemented by mitomycin C or combined with trabeculotomy.14–18 However, overall success rates after paediatric glaucoma surgery range from 60 to 92%, with the rates declining over time. Fu ...
Transient Drug-Induced Myopia - Latest published research reports
... plus power for the length of eye. As a result, images of distant objects are focused in front of the retina and thus appear blurred. Myopia has been recognized as a distinct visual disability for millennia and has been known for more than 2000 years and was first described by the ancient Greeks [6,7 ...
... plus power for the length of eye. As a result, images of distant objects are focused in front of the retina and thus appear blurred. Myopia has been recognized as a distinct visual disability for millennia and has been known for more than 2000 years and was first described by the ancient Greeks [6,7 ...
Tests and models for screening to prevent blindness
... In the neonate, screening is used to detect abnormal eye alignment (strabismus), asymmetric refractive errors, congenital cataracts and retinal abnormalities such as retinoblastoma and retinopathy of prematurity (ROP). In early childhood, screening is used to detect amblyopia (or ‘lazy eye’) – a typ ...
... In the neonate, screening is used to detect abnormal eye alignment (strabismus), asymmetric refractive errors, congenital cataracts and retinal abnormalities such as retinoblastoma and retinopathy of prematurity (ROP). In early childhood, screening is used to detect amblyopia (or ‘lazy eye’) – a typ ...
Ophthalmological Emergencies
... Visual loss • Anywhere along optical and neurologic pathways • Distinguish between central and peripheral • Techniques to distinguish true traumatic visual loss • Write name – will be accurate in the face of true injury, while children who are “functionally” blind assume they are also unable to wri ...
... Visual loss • Anywhere along optical and neurologic pathways • Distinguish between central and peripheral • Techniques to distinguish true traumatic visual loss • Write name – will be accurate in the face of true injury, while children who are “functionally” blind assume they are also unable to wri ...
IHE Eye Care User`s Handbook
... purchased, integrated and deployed. Each chapter presents a scenario: (1) buying and deploying a new instrument, (2) buying and deploying an electronic health record (EHR), and (3) buying and deploying an image storage and display system, referred to as a Picture Archiving and Communications System ...
... purchased, integrated and deployed. Each chapter presents a scenario: (1) buying and deploying a new instrument, (2) buying and deploying an electronic health record (EHR), and (3) buying and deploying an image storage and display system, referred to as a Picture Archiving and Communications System ...
Neuropeptide Y immunoreactive neurons in the guinea
... peptides.2 The amino acid sequences of these peptides have, been published.9 ...
... peptides.2 The amino acid sequences of these peptides have, been published.9 ...
Ophthalmic Lenses
... As we travel across the world, we see that numerous countries are still missing out on developments. We are fortunate to have almost all the latest developments in the field of ophthalmic lenses. The availability of wide range in the material and design of ophthalmic lenses has made it indispensable ...
... As we travel across the world, we see that numerous countries are still missing out on developments. We are fortunate to have almost all the latest developments in the field of ophthalmic lenses. The availability of wide range in the material and design of ophthalmic lenses has made it indispensable ...
as PDF
... (2009) reported, for the first time, the infection of beech martens, wildcats, and brown hares by T. callipaeda. In addition, the retrieval of T. callipaeda in one of two wolves examined supported the previous report of nematodes in this animal species (Otranto et al. 2007). The finding of adult wor ...
... (2009) reported, for the first time, the infection of beech martens, wildcats, and brown hares by T. callipaeda. In addition, the retrieval of T. callipaeda in one of two wolves examined supported the previous report of nematodes in this animal species (Otranto et al. 2007). The finding of adult wor ...
Adherent ocular bandage for clear corneal incisions used in cataract
... METHODS: Patients having coaxial microincision cataract surgery (MICS) were allocated to an adherent ocular bandage group or to a control group. The CCIs were examined postoperatively within 2 hours and at 24 hours and 7 days using OCT imaging and a slitlamp fluorescein 2% Seidel test. RESULTS: The ...
... METHODS: Patients having coaxial microincision cataract surgery (MICS) were allocated to an adherent ocular bandage group or to a control group. The CCIs were examined postoperatively within 2 hours and at 24 hours and 7 days using OCT imaging and a slitlamp fluorescein 2% Seidel test. RESULTS: The ...
Chapter for the Oxford Textbook of Ophthalmology
... globe. This is because the upper lid protects the drainage area. A peripheral iridectomy placed at 12 o'clock is covered by the lid, and does not give rise to diplopia. Drainage blebs that are not covered by the upper lid, particularly those in the interpalpebral fissure or the lower fornix, have a ...
... globe. This is because the upper lid protects the drainage area. A peripheral iridectomy placed at 12 o'clock is covered by the lid, and does not give rise to diplopia. Drainage blebs that are not covered by the upper lid, particularly those in the interpalpebral fissure or the lower fornix, have a ...
numerical solution of ocular fluid dynamics
... Figure 7-7: Iridectomy with hole located at iris-root, Vertical Orientation. Comparison of velocity magnitude among pupillary block and iridectomy with different locations of holes (a) Along a line parallel to Y-axis (Z=4.6 mm, X=0mm) inside the anterior chamber near the iris periphery. (b) Along a ...
... Figure 7-7: Iridectomy with hole located at iris-root, Vertical Orientation. Comparison of velocity magnitude among pupillary block and iridectomy with different locations of holes (a) Along a line parallel to Y-axis (Z=4.6 mm, X=0mm) inside the anterior chamber near the iris periphery. (b) Along a ...
Profile of clear corneal cataract incisions demonstrated by ocular
... METHODS: The Zeiss Visante OCT anterior segment imaging system was used to study the profile of clear corneal cataract incisions, all in senior citizens. The OCT images of the operative eye were taken on the first postoperative day approximately 24 hours after surgery. The OCT images of clear cornea ...
... METHODS: The Zeiss Visante OCT anterior segment imaging system was used to study the profile of clear corneal cataract incisions, all in senior citizens. The OCT images of the operative eye were taken on the first postoperative day approximately 24 hours after surgery. The OCT images of clear cornea ...
Beyond Intraocular Pressure
... glaucoma patients by measuring function (via standard automated perimetry visual field testing) or structure, using any one of a number of imaging devices. In fact, neither method is sufficient on its own. The ability of structural and functional methods to detect change and accurately estimate the ...
... glaucoma patients by measuring function (via standard automated perimetry visual field testing) or structure, using any one of a number of imaging devices. In fact, neither method is sufficient on its own. The ability of structural and functional methods to detect change and accurately estimate the ...
Ophthalmology and Eye Diseases clinical Options for the Reduction
... Brimonidine also has a secondary action on uveoscleral outflow.14,65,53 The hypotensive effect lasts 12 hours with a peak effect at 2 hours hence it’s twice daily dosing.65 Allergic reactions to brimonidine can occur in up to 25% of patients and usually develops within two weeks of the beginning o ...
... Brimonidine also has a secondary action on uveoscleral outflow.14,65,53 The hypotensive effect lasts 12 hours with a peak effect at 2 hours hence it’s twice daily dosing.65 Allergic reactions to brimonidine can occur in up to 25% of patients and usually develops within two weeks of the beginning o ...
Course Descriptions
... Credits: 1 A JCAHPO, AOC-NC Description: This fun and interactive course is designed to define the most used modifiers and how to append them to services performed. CPT codes do not always tell the complete story for what transpired during the visit. Modifiers are an integral part of informing the p ...
... Credits: 1 A JCAHPO, AOC-NC Description: This fun and interactive course is designed to define the most used modifiers and how to append them to services performed. CPT codes do not always tell the complete story for what transpired during the visit. Modifiers are an integral part of informing the p ...
Astigmatism – Definition, Etiology, Classification, Diagnosis
... at meridian 90 degrees apart [Abrams, 1993; AAO, 2007; Raviv & Epstein, 2000]. Various types of regular astigmatism have been identified on the basis of the refractive power and position of the principal meridians, as described in Table 2 when accommodation is relaxed in non-astigmatic eyes and in a ...
... at meridian 90 degrees apart [Abrams, 1993; AAO, 2007; Raviv & Epstein, 2000]. Various types of regular astigmatism have been identified on the basis of the refractive power and position of the principal meridians, as described in Table 2 when accommodation is relaxed in non-astigmatic eyes and in a ...
Retinal pigment epithelial lipofuscin and melanin and
... central areolar atrophy, an entity generally considered to be a variant of senile macular degeneration (SMD). The lipofuscin concentration at any site is several times higher than normal for this age and is higher than ever found in a normal eye. The RPE cells at the posterior pole have already dege ...
... central areolar atrophy, an entity generally considered to be a variant of senile macular degeneration (SMD). The lipofuscin concentration at any site is several times higher than normal for this age and is higher than ever found in a normal eye. The RPE cells at the posterior pole have already dege ...
Corneal epithelial healing after photorefractive keratectomy
... others,17,18 the ideal masking solution should have an ablation rate similar to that of corneal tissue (0.25 mm per pulse) and a viscosity that makes it cover the irregular surface uniformly without running off too quickly; in this manner, only the stromal peaks are left exposed. At present, the rig ...
... others,17,18 the ideal masking solution should have an ablation rate similar to that of corneal tissue (0.25 mm per pulse) and a viscosity that makes it cover the irregular surface uniformly without running off too quickly; in this manner, only the stromal peaks are left exposed. At present, the rig ...
teller acuity cards
... acuity. All children who did not complete both monocular tests did cooperate for a binocular test. Acuity testing averaged 10 minutes per child. Nine children (21%) were referred for follow-up care. The acuity screening identified five of the nine children as having an interocular acuity difference ...
... acuity. All children who did not complete both monocular tests did cooperate for a binocular test. Acuity testing averaged 10 minutes per child. Nine children (21%) were referred for follow-up care. The acuity screening identified five of the nine children as having an interocular acuity difference ...
Heidelberg Retina Tomograph und Papille
... technology (FDT) perimetry to discriminate between healthy eyes and those with early glaucoma, classified based on standard automated perimetry (SAP) and optic disc appearance. To determine the agreement among instruments for classifying eyes as glaucomatous. METHODS: One eye of each of 94 subjects ...
... technology (FDT) perimetry to discriminate between healthy eyes and those with early glaucoma, classified based on standard automated perimetry (SAP) and optic disc appearance. To determine the agreement among instruments for classifying eyes as glaucomatous. METHODS: One eye of each of 94 subjects ...
Handbook of Pediatric Strabismus and Amblyopia
... are often used to describe fixation including GCM for good, central, and maintained, CSM for central, steady, and maintained, or FF for fix and follow. Eccentric fixation is an important sign as this shows that the patient is not fixing with the fovea and vision is in the range of 20/200 or worse. It is ...
... are often used to describe fixation including GCM for good, central, and maintained, CSM for central, steady, and maintained, or FF for fix and follow. Eccentric fixation is an important sign as this shows that the patient is not fixing with the fovea and vision is in the range of 20/200 or worse. It is ...
Granular Corneal Dystrophy Discovered Following LASIK
... symptoms of GCD2 at a much earlier age if they undergo refractive surgery and that these patients will require further surgical intervention to maintain good visual function. While many possible explanations ...
... symptoms of GCD2 at a much earlier age if they undergo refractive surgery and that these patients will require further surgical intervention to maintain good visual function. While many possible explanations ...
Introduction to Ophthalmic Optics Workbook
... correcting refractive errors and enabling people to see well. Contact lenses and refractive surgery are other options. Refractive errors include myopia or nearsightedness, and hyperopia or far-sightedness. Myopia and hyperopia are corrected with spherical lenses of minus and plus power respectively. ...
... correcting refractive errors and enabling people to see well. Contact lenses and refractive surgery are other options. Refractive errors include myopia or nearsightedness, and hyperopia or far-sightedness. Myopia and hyperopia are corrected with spherical lenses of minus and plus power respectively. ...
Human eye
The human eye is an organ that reacts to light and has several purposes. As a sense organ, the mammalian eye allows vision. Rod and cone cells in the retina allow conscious light perception and vision including color differentiation and the perception of depth. The human eye can distinguish about 10 million colors.Similar to the eyes of other mammals, the human eye's non-image-forming photosensitive ganglion cells in the retina receive light signals which affect adjustment of the size of the pupil, regulation and suppression of the hormone melatonin and entrainment of the body clock.