IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... Cataract was found to be the most common cause of opaque media in our study. In immature cataract, the lens shows scattered opacities that are separated by clear media. Mature cataract, appears completely opaque which shows dense shadowing [7]. The cataractous lens precludes fundus examination of th ...
... Cataract was found to be the most common cause of opaque media in our study. In immature cataract, the lens shows scattered opacities that are separated by clear media. Mature cataract, appears completely opaque which shows dense shadowing [7]. The cataractous lens precludes fundus examination of th ...
Special Sensory Function Special Sensory Function
... vision. The refractive surface of the cornea and accommodative properties of the lens serve to focus the light signals from near and far objects on the photoreceptors in the retina. ➤ Visual information is carried to the brain by axons of the retinal cells that form the optic nerve. The two optic ne ...
... vision. The refractive surface of the cornea and accommodative properties of the lens serve to focus the light signals from near and far objects on the photoreceptors in the retina. ➤ Visual information is carried to the brain by axons of the retinal cells that form the optic nerve. The two optic ne ...
A Review of the Vascular Anatomy of the Optic Nerve Head
... visual deterioration, worse when waking in the morning. Their visual acuity may be normal or reduced, and perimetry is the most important functional test. It shows relative or absolute defects over the visual field, the most common is a inferior nasal sectorial defect, next is an inferior altitudina ...
... visual deterioration, worse when waking in the morning. Their visual acuity may be normal or reduced, and perimetry is the most important functional test. It shows relative or absolute defects over the visual field, the most common is a inferior nasal sectorial defect, next is an inferior altitudina ...
A Review of the Vascular Anatomy of the Optic Nerve Head
... visual deterioration, worse when waking in the morning. Their visual acuity may be normal or reduced, and perimetry is the most important functional test. It shows relative or absolute defects over the visual field, the most common is a inferior nasal sectorial defect, next is an inferior altitudina ...
... visual deterioration, worse when waking in the morning. Their visual acuity may be normal or reduced, and perimetry is the most important functional test. It shows relative or absolute defects over the visual field, the most common is a inferior nasal sectorial defect, next is an inferior altitudina ...
Artificial Eye
... impression of the eye socket attached to the back side of the wax shell. 5. The iris color is then rechecked and any necessary changes are made. The plastic conformer is reinserted so that the final steps can be completed. 6. A plaster-of-paris cast is made of the mold of the patient's eye socket. A ...
... impression of the eye socket attached to the back side of the wax shell. 5. The iris color is then rechecked and any necessary changes are made. The plastic conformer is reinserted so that the final steps can be completed. 6. A plaster-of-paris cast is made of the mold of the patient's eye socket. A ...
Choroidal Thickness Study Using Swept
... using SS-OCT, we can determine the extent to which the choroid has thinned. Alternatively, we can perform the same evaluation in terms of how thick the choroid is in the presence of CSC or diabetic retinopathy. SS-OCT permits a wider range of imaging with a detailed examination of the ocular structu ...
... using SS-OCT, we can determine the extent to which the choroid has thinned. Alternatively, we can perform the same evaluation in terms of how thick the choroid is in the presence of CSC or diabetic retinopathy. SS-OCT permits a wider range of imaging with a detailed examination of the ocular structu ...
Choroidal Thickness Study Using Swept-source
... SD-OCT images are highest in resolution near the zero-delay line. Thus, when the image is inverted, even if some resolution is lost at the vitreous and the retina, the resolution at the choroid is excellent. Swept-source (SS) OCT (DRI-OCT, Topcon) is a completely new technology that enhances the vis ...
... SD-OCT images are highest in resolution near the zero-delay line. Thus, when the image is inverted, even if some resolution is lost at the vitreous and the retina, the resolution at the choroid is excellent. Swept-source (SS) OCT (DRI-OCT, Topcon) is a completely new technology that enhances the vis ...
comparison between panretinal photocoagulation and panretinal
... endothelial growth factor (VEGF) a different mechanism which has no destructive effect like PRP laser and increases the chances of achieving stability of retinopathy status. On the other hand, IVB does not change the relative ischemia in the retina. Although standard treatment of proliferative diabe ...
... endothelial growth factor (VEGF) a different mechanism which has no destructive effect like PRP laser and increases the chances of achieving stability of retinopathy status. On the other hand, IVB does not change the relative ischemia in the retina. Although standard treatment of proliferative diabe ...
Normal Fundus and Variations in the
... The vascular pattern consists of about 30 - 60 very small cilioretinal vessels that emerge from the edge of the optic disc 360 degrees and traverse only a short distance from the disc. The pink optic disc is a mildly concave ellipse that is always in the the non-tapetal zone. The tapetum has a granu ...
... The vascular pattern consists of about 30 - 60 very small cilioretinal vessels that emerge from the edge of the optic disc 360 degrees and traverse only a short distance from the disc. The pink optic disc is a mildly concave ellipse that is always in the the non-tapetal zone. The tapetum has a granu ...
From the optic tectum to the primary visual cortex
... thus not having face detectors in V1 cannot be an argument against V1’s role in the saliency of a visual location on a face. A case of looking or attending before seeing or recognizing the visual object at the attended location is dramatically demonstrated in the strong saliency of the eye-of-origin ...
... thus not having face detectors in V1 cannot be an argument against V1’s role in the saliency of a visual location on a face. A case of looking or attending before seeing or recognizing the visual object at the attended location is dramatically demonstrated in the strong saliency of the eye-of-origin ...
Binocular Vision and Space Perception
... combinations of contours, colors, and luminances have been studied exhaustively since the days of Panum,78 Fechner,41 Helmholtz,44 and Hering.45 Review of the literature may be found in the reports of Hofmann,49 Ogle,76, p. 409 and Levelt.67 It is of interest that it takes a certain buildup of time ...
... combinations of contours, colors, and luminances have been studied exhaustively since the days of Panum,78 Fechner,41 Helmholtz,44 and Hering.45 Review of the literature may be found in the reports of Hofmann,49 Ogle,76, p. 409 and Levelt.67 It is of interest that it takes a certain buildup of time ...
MCQs 3.25MB 2017-03
... b. trochlear nerve paralysis is commonly caused by diabetes mellitus c. abducens nerve paralysis is frequently caused by diabetes mellitus d. the tricolour nerve is more frequently damaged by neoplasms than the abducens nerve e. trochlear nerve paralysis, can be caused by intracranial aneurysms. ...
... b. trochlear nerve paralysis is commonly caused by diabetes mellitus c. abducens nerve paralysis is frequently caused by diabetes mellitus d. the tricolour nerve is more frequently damaged by neoplasms than the abducens nerve e. trochlear nerve paralysis, can be caused by intracranial aneurysms. ...
Carbonic anhydrase isoenzymes CA I and CA II in the human
... in any tissue, since all histochemical staining was inhibited by 10 nM acetazolamide (see Methods). It should be noted that the immunological method does not detect the membrane-bound CA IV, which is immunologically different6 from the cytoplasmic forms. With the histochemical method, on the other h ...
... in any tissue, since all histochemical staining was inhibited by 10 nM acetazolamide (see Methods). It should be noted that the immunological method does not detect the membrane-bound CA IV, which is immunologically different6 from the cytoplasmic forms. With the histochemical method, on the other h ...
12.0 OPHTHALMOLOGY
... alignment even decades later. A waiver for aviation duty other than an SNA applicant will be considered on a case-by-case basis no sooner than six months after a successful and stable strabismus surgery if post-operatively, the member otherwise meets the visual standards appropriate for his or her d ...
... alignment even decades later. A waiver for aviation duty other than an SNA applicant will be considered on a case-by-case basis no sooner than six months after a successful and stable strabismus surgery if post-operatively, the member otherwise meets the visual standards appropriate for his or her d ...
Yet To Receive
... scleral buckling. As this step is almost a blind procedure it is not free from potential complications that include choroidal hemorrhage, retinal incarceration and intraocular infection. Drainage in scleral buckling surgery is usually done in bullous detachments to visualise the breaks, to make spac ...
... scleral buckling. As this step is almost a blind procedure it is not free from potential complications that include choroidal hemorrhage, retinal incarceration and intraocular infection. Drainage in scleral buckling surgery is usually done in bullous detachments to visualise the breaks, to make spac ...
Anatomy and diseases of the uvea
... b) In cases where pupil does not dilate with atropine, subconjunctival injection of 0.3 cc mydricaine is given (this contains atropine, adrenaline and procaine and is a potent mydriatic). c) In cases of atropine allergy- 2% homatropine, 1% cyclopentolate, 0.5% hyoscine may be used. ii) Cortisone dr ...
... b) In cases where pupil does not dilate with atropine, subconjunctival injection of 0.3 cc mydricaine is given (this contains atropine, adrenaline and procaine and is a potent mydriatic). c) In cases of atropine allergy- 2% homatropine, 1% cyclopentolate, 0.5% hyoscine may be used. ii) Cortisone dr ...
Retinal hemorrhages as one of complications of optic disc drusen
... drusen may vary in their appearance and position throughout the life of the patient, from those deeply immersed in the optic nerve to the ones placed on the surface of the nerve [12–14]. The prevalence of retinal hemorrhages in patients with ODD is from 2% to 10% [15–18]. Sanders et al. distinguish ...
... drusen may vary in their appearance and position throughout the life of the patient, from those deeply immersed in the optic nerve to the ones placed on the surface of the nerve [12–14]. The prevalence of retinal hemorrhages in patients with ODD is from 2% to 10% [15–18]. Sanders et al. distinguish ...
PATTERN AND OUTCOME OF POSTERIOR SEGMENT INJURIES
... (blunt or penetrating), chemical agents, or radiation (ultraviolet or ionizing) 1. Posterior segment eye structures include the vitreous humour, retina, optic nerve and choroid. These injuries may include posterior segment blood vessel lacerations. Kikuyu Eye Unit (KEU) is a tertiary eye care centre ...
... (blunt or penetrating), chemical agents, or radiation (ultraviolet or ionizing) 1. Posterior segment eye structures include the vitreous humour, retina, optic nerve and choroid. These injuries may include posterior segment blood vessel lacerations. Kikuyu Eye Unit (KEU) is a tertiary eye care centre ...
Causes of severe visual impairment and blindness in schools for
... Although not a major problem in terms of absolute number, childhood blindness accounts for a significant number of years with blindness. In planning to deal with causes of blindness in children in future, public health services have to be strengthened at all levels and collaboration with the governm ...
... Although not a major problem in terms of absolute number, childhood blindness accounts for a significant number of years with blindness. In planning to deal with causes of blindness in children in future, public health services have to be strengthened at all levels and collaboration with the governm ...
(OCT).
... of prey, the limited number of only four hawk and owl individuals were used and first information about the potential of OCT for visualisation of the raptor retina was obtained. In a single bird patient a traumatic lesion was also imaged (RUGGERI et al. 2010). However, this investigation was limited ...
... of prey, the limited number of only four hawk and owl individuals were used and first information about the potential of OCT for visualisation of the raptor retina was obtained. In a single bird patient a traumatic lesion was also imaged (RUGGERI et al. 2010). However, this investigation was limited ...
eye health - Texas Optometric Association
... ●● Tight PG control via intensive therapy results in the significant reduction for risk of developing severe NPDR, vitreous hemorrhage, renal failure, PDR, CSME or need for photocoagulation ●● Similar results were found for T1DM and T2DM ●● HbA1C values of ~7.0 were defined as adequate in these stud ...
... ●● Tight PG control via intensive therapy results in the significant reduction for risk of developing severe NPDR, vitreous hemorrhage, renal failure, PDR, CSME or need for photocoagulation ●● Similar results were found for T1DM and T2DM ●● HbA1C values of ~7.0 were defined as adequate in these stud ...
Functional Anatomy of the Human Visual Pathway
... The lateral geniculate body (LGB), or lateral geniculate nucleus (LGN), is the last synaptic component of the afferent pathway prior to arrival at the primary visual cortex. About 1.2 million tract fibers on each side project onto about 5 million neurons of the optic radiations, which constitute the ...
... The lateral geniculate body (LGB), or lateral geniculate nucleus (LGN), is the last synaptic component of the afferent pathway prior to arrival at the primary visual cortex. About 1.2 million tract fibers on each side project onto about 5 million neurons of the optic radiations, which constitute the ...
Epithelial Membrane Protein-2 in Human Proliferative
... regulator of integrins, is significantly expressed in human PVR from all causes and with a noted trend of increased expression in inflammatory types of PVR. In vitro studies have supported a role for EMP2 in membrane contraction.9 Animal models of PVR also have demonstrated the expression of EMP2 in ...
... regulator of integrins, is significantly expressed in human PVR from all causes and with a noted trend of increased expression in inflammatory types of PVR. In vitro studies have supported a role for EMP2 in membrane contraction.9 Animal models of PVR also have demonstrated the expression of EMP2 in ...
CURRICULUM VITAE - Boston Retinal Implant Project
... My clinical research has focused primarily on the study of optic neuritis/multiple sclerosis, ischemic optic neuropathy, pseudotumor cerebri and giant cell arteritis. I have completed three significant clinical research studies that have influenced the diagnosis and treatment of optic neuritis and i ...
... My clinical research has focused primarily on the study of optic neuritis/multiple sclerosis, ischemic optic neuropathy, pseudotumor cerebri and giant cell arteritis. I have completed three significant clinical research studies that have influenced the diagnosis and treatment of optic neuritis and i ...