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Ch 17 Notes: Special Senses 2012-2013
... density toward the periphery of the retina. Colorblindness = inability to distinguish certain colors due to inherited absence or deficiency in one of the three photopigments. Colorblindness is an X-linked, recessive genetic defect. _________________________________________________________ LENS OF EY ...
... density toward the periphery of the retina. Colorblindness = inability to distinguish certain colors due to inherited absence or deficiency in one of the three photopigments. Colorblindness is an X-linked, recessive genetic defect. _________________________________________________________ LENS OF EY ...
File - Optometry Peer Tutoring
... With the red reflex visible, reduce lens rack power by 1D steps (towards zero, or plano) As you do this, you will focus at different depths within the vitreous until finally the fundus comes into focus If you and your patient are both emmetropic and not accommodating (almost impossible when yo ...
... With the red reflex visible, reduce lens rack power by 1D steps (towards zero, or plano) As you do this, you will focus at different depths within the vitreous until finally the fundus comes into focus If you and your patient are both emmetropic and not accommodating (almost impossible when yo ...
Aqueous Shunt Implantation pdf Brochure
... names all refer to the same thing. Although there are many types of shunt available, two brands are in common use today and they function in a similar fashion. These are called the Ahmed Glaucoma Valve and the Baerveldt Glaucoma Implant. In certain circumstances a third type, known as the Molteno ...
... names all refer to the same thing. Although there are many types of shunt available, two brands are in common use today and they function in a similar fashion. These are called the Ahmed Glaucoma Valve and the Baerveldt Glaucoma Implant. In certain circumstances a third type, known as the Molteno ...
Computed Tomography of Ocular Colobomas
... and may be very ectatic. The visual field examinations are abnormal, and visual acuity is often diminished because the retina is atrophic in the area of the coloboma. If an orbital cyst is present there is usually globe displacement, proptosis, and microphthalmus. The appearance of colobomas on CT i ...
... and may be very ectatic. The visual field examinations are abnormal, and visual acuity is often diminished because the retina is atrophic in the area of the coloboma. If an orbital cyst is present there is usually globe displacement, proptosis, and microphthalmus. The appearance of colobomas on CT i ...
drainage
... in the image below. Gentle poking with a blunt instrument a few millimeters around the ...
... in the image below. Gentle poking with a blunt instrument a few millimeters around the ...
Retinitis Pigmentosa SPE 516 Group Project Micha Munro
... Signs of RP can usually be detected during a routine eye exam when the patient is around 10 years old. However, symptoms usually do not develop until adolescence. Although the disease worsens over time, most patients retain at least partial vision, and complete blindness is rare. It is perfectly nat ...
... Signs of RP can usually be detected during a routine eye exam when the patient is around 10 years old. However, symptoms usually do not develop until adolescence. Although the disease worsens over time, most patients retain at least partial vision, and complete blindness is rare. It is perfectly nat ...
CATS_scheme_V4 - Sheffield Local Optometric Committee
... optic nerve, full threshold visual field analysis, Van Herrick assessment of the depth of the anterior angle, slit lamp examination of the posterior cornea and applanation tonometry. Repeat / follow up investigations are possible for £35. Primary Eye care Assessment and Referrals Service (PEARS): Th ...
... optic nerve, full threshold visual field analysis, Van Herrick assessment of the depth of the anterior angle, slit lamp examination of the posterior cornea and applanation tonometry. Repeat / follow up investigations are possible for £35. Primary Eye care Assessment and Referrals Service (PEARS): Th ...
Strabismus
... 2. This 32 year old overweight woman complains of several months of headaches, nausea, and now double vision. What cranial nerve lesion do you see in this drawing. What other findings might you expect on fundus exam and what other tests might you get? • This looks like an abducens palsy … actually ...
... 2. This 32 year old overweight woman complains of several months of headaches, nausea, and now double vision. What cranial nerve lesion do you see in this drawing. What other findings might you expect on fundus exam and what other tests might you get? • This looks like an abducens palsy … actually ...
Pupillary Abnormalities
... This is a relatively rare disorder caused by an interruption of the sympathetic nerve supply to the eye. The classic signs are: A constricted pupil. Ptosis. Absence of facial sweating (anhidrosis). Enophthalmos. Horner's syndrome is distinguished from physiological anisocoria by instillation of a dr ...
... This is a relatively rare disorder caused by an interruption of the sympathetic nerve supply to the eye. The classic signs are: A constricted pupil. Ptosis. Absence of facial sweating (anhidrosis). Enophthalmos. Horner's syndrome is distinguished from physiological anisocoria by instillation of a dr ...
Preoperative Assessment of a Patient with Cataract
... The preoperative workup also involves certain basic laboratory investigations to diagnose some of the above mentioned conditions. Opinion is divided about the scope and array of investigations to be done routinely before cataract surgery. A good compromise is to undertake certain basic investigation ...
... The preoperative workup also involves certain basic laboratory investigations to diagnose some of the above mentioned conditions. Opinion is divided about the scope and array of investigations to be done routinely before cataract surgery. A good compromise is to undertake certain basic investigation ...
Analysis of progressive ophthalmic lesion in a patient with subacute
... which resulted in elongation of the axial eye length might have been involved in the myopic change. ...
... which resulted in elongation of the axial eye length might have been involved in the myopic change. ...
A Case of Beauveria Bassiana Keratitis Confirmed by Gene
... patient had a blood glucose level of 491mg/dL at the time of admission. The patient was not aware that his blood glucose level was high, and he had not been taking any medications for blood glucose control. It is probable that his hyperglycemia had been present for a long period of time. This might ...
... patient had a blood glucose level of 491mg/dL at the time of admission. The patient was not aware that his blood glucose level was high, and he had not been taking any medications for blood glucose control. It is probable that his hyperglycemia had been present for a long period of time. This might ...
Treatment
... Causes • Congenital • Cicatricial conjunctivitis secondary to scarring of palpebral conjunctiva e.g. trachoma, chemical burn. • Senile; Due to weakness of Orbicularis oculi muscle . Treatment : all of the above condition is treated surgically . • Spastic : secondary to any condition causing seve ...
... Causes • Congenital • Cicatricial conjunctivitis secondary to scarring of palpebral conjunctiva e.g. trachoma, chemical burn. • Senile; Due to weakness of Orbicularis oculi muscle . Treatment : all of the above condition is treated surgically . • Spastic : secondary to any condition causing seve ...
Accessory Structures of the Eye
... These receptors respond to angular or rotary movements Crista ampullaris (in the ampulla of each semicircular canal)—dynamic equilibrium receptors are located in the semicircular canals o Tuft of hair cells covered with cupula (gelatinous cap) o If the head moves, the cupula drags against the endoly ...
... These receptors respond to angular or rotary movements Crista ampullaris (in the ampulla of each semicircular canal)—dynamic equilibrium receptors are located in the semicircular canals o Tuft of hair cells covered with cupula (gelatinous cap) o If the head moves, the cupula drags against the endoly ...
"Hey Doc, I Can`t See!" - Ophthalmology 101 for Primary Care
... Ocular migraine Visual aura from migraine = ocular migraine Ocular migraines are sometimes associated with headache, but not always Neurologic deficits tend to resolve after each episode ...
... Ocular migraine Visual aura from migraine = ocular migraine Ocular migraines are sometimes associated with headache, but not always Neurologic deficits tend to resolve after each episode ...
Eye surgery
... • Afferent = N V (V1), efferent = N X → bradycardia • Most common in children for strabismus repair, but can occur during any ophthalmic procedure • Management: 1. Ask surgeon to stop pulling on muscles 2. Confirm adequate depth of anaesthesia 3. Administer atropine (0.02 mg/kg) if bradycardia persi ...
... • Afferent = N V (V1), efferent = N X → bradycardia • Most common in children for strabismus repair, but can occur during any ophthalmic procedure • Management: 1. Ask surgeon to stop pulling on muscles 2. Confirm adequate depth of anaesthesia 3. Administer atropine (0.02 mg/kg) if bradycardia persi ...
sample chapter
... appropriately categorised as lacerations to scalp, or eyebrow or wherever. A common tale is of a clash of heads on the rugby field, where the patient does not know that he is injured until some blood runs down into his eye, or of a workman who stands up below a shelf with a sharp corner and cuts the ...
... appropriately categorised as lacerations to scalp, or eyebrow or wherever. A common tale is of a clash of heads on the rugby field, where the patient does not know that he is injured until some blood runs down into his eye, or of a workman who stands up below a shelf with a sharp corner and cuts the ...
oculomotor (iii.) nerve palsy
... Primary action of the muscle is its major effect when the eye is in primary position Subsidiary actions are the additional effects of the position of the eye Listing plane is an imaginary frontal equatorial plane passing through the center of rotation of globe. -The globe rotates left and right arou ...
... Primary action of the muscle is its major effect when the eye is in primary position Subsidiary actions are the additional effects of the position of the eye Listing plane is an imaginary frontal equatorial plane passing through the center of rotation of globe. -The globe rotates left and right arou ...
Department of Ophthalmology
... Glaucoma research took a major leap forward in 2007 with the discovery by a genetic consortium in Iceland of two distinct mutations in the LOXL1 (lysyl oxidase-like gene, which codes for a family of enzymes involved in the synthesis and maintenance of elastic tissues. Nearly a decade later, a team i ...
... Glaucoma research took a major leap forward in 2007 with the discovery by a genetic consortium in Iceland of two distinct mutations in the LOXL1 (lysyl oxidase-like gene, which codes for a family of enzymes involved in the synthesis and maintenance of elastic tissues. Nearly a decade later, a team i ...
Introduction to long-term follow-up
... by an ophthalmologist. Evaluation by an ocularist (a trained person who makes and fits artificial eyes) at least once a year is recommended for anyone who has had: ...
... by an ophthalmologist. Evaluation by an ocularist (a trained person who makes and fits artificial eyes) at least once a year is recommended for anyone who has had: ...
EYE WEB QUEST
... 1) Right click “Open hyperlink” on the website address below. http://camillasenior.homestead.com/optics4.html 2) Answer the following questions by typing in the answer below. a) How is light focused when someone is nearsighted? What kind of lens is used to correct this? b) How is light focused when ...
... 1) Right click “Open hyperlink” on the website address below. http://camillasenior.homestead.com/optics4.html 2) Answer the following questions by typing in the answer below. a) How is light focused when someone is nearsighted? What kind of lens is used to correct this? b) How is light focused when ...
1 Ophthalmologic considerations in maxillofacial trauma Anatomy
... (sympathetic) several days to years later. This phenomenon is called sympathetic ophthalmia and can lead to blindness in the unaffected eye if the injured globe is not enucleated. Crepitus: Crepitus elicited by manual palpation of the orbital rims may be caused by subcutaneous emphysema or comminuti ...
... (sympathetic) several days to years later. This phenomenon is called sympathetic ophthalmia and can lead to blindness in the unaffected eye if the injured globe is not enucleated. Crepitus: Crepitus elicited by manual palpation of the orbital rims may be caused by subcutaneous emphysema or comminuti ...
Glaucoma
... for far distance – sph convex 10,0-12,0 D for near distance – sph convex 13,0-15,0 D. ...
... for far distance – sph convex 10,0-12,0 D for near distance – sph convex 13,0-15,0 D. ...
SMILE procedure information package and consent form
... vision correction. We appreciate the fact that this is an extremely important decision that could alter your life immeasurably. Like many patients, you may be feeling excited about the prospect of being freed from dependency on glasses or contacts, but at this point, you may also have some questions ...
... vision correction. We appreciate the fact that this is an extremely important decision that could alter your life immeasurably. Like many patients, you may be feeling excited about the prospect of being freed from dependency on glasses or contacts, but at this point, you may also have some questions ...
Idiopathic intracranial hypertension
![](https://commons.wikimedia.org/wiki/Special:FilePath/MRI_brain.jpg?width=300)
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.