Stereoscopic Vision, Stereoscope, Selection of Stereo Pair and Its
... defined as the science or art which deals with stereoscopic or other three dimensional effects and methods by which these effects are produced. The close objects are larger, brighter, and more detailed than distant object, and that the close object obstructs the view of distant object. Stereoscopy i ...
... defined as the science or art which deals with stereoscopic or other three dimensional effects and methods by which these effects are produced. The close objects are larger, brighter, and more detailed than distant object, and that the close object obstructs the view of distant object. Stereoscopy i ...
anaphylactic shock after fluorescein staining corneal abrasion. a
... thalmic examination. Instillation of 2.0% solution or application of fluorescein from an impregnated paper strip is used in the diagnosis of external corneal disorders, determination of intraocular pressure by applanation tonometry, and identification of lacrimal system obstruction. It is considere ...
... thalmic examination. Instillation of 2.0% solution or application of fluorescein from an impregnated paper strip is used in the diagnosis of external corneal disorders, determination of intraocular pressure by applanation tonometry, and identification of lacrimal system obstruction. It is considere ...
Printing - Philosophical Transactions of the Royal Society B
... recovery is the rule, but can be reduced if the rupture involves the fovea [40]. Sclopetaria, traumatic chorioretinal rupture, is from a concussion injury where an object strikes the eye at high velocity but does not penetrate the eye. The choroid and retina are locally disrupted by the transmitted ...
... recovery is the rule, but can be reduced if the rupture involves the fovea [40]. Sclopetaria, traumatic chorioretinal rupture, is from a concussion injury where an object strikes the eye at high velocity but does not penetrate the eye. The choroid and retina are locally disrupted by the transmitted ...
An intervention trial on efficacy of atropine and multi
... 6 to 13 years, who were stratified based on gender, age and the initial amount of myopia were randomly assigned to three treatment groups: 0.5% atropine with multi-focal glasses, multi-focal glasses, and single vision spectacles. Each subject was followed for at least eighteen months. These results ...
... 6 to 13 years, who were stratified based on gender, age and the initial amount of myopia were randomly assigned to three treatment groups: 0.5% atropine with multi-focal glasses, multi-focal glasses, and single vision spectacles. Each subject was followed for at least eighteen months. These results ...
The matrix of the optic vesicle-presumptive lens
... and Zelander (1970) with slight modifications. The sectioned heads were immersed in 1 % Alcian blue 8GX and 2-3 % glutaraldehyde in 0-1 M phosphate buffer, pH 6-2, overnight at 4 °C, followed by a rinse in 0-1 M phosphate buffer plus 10 % sucrose, pH 6-2. They were post-fixed in 1 % osmium tetroxide ...
... and Zelander (1970) with slight modifications. The sectioned heads were immersed in 1 % Alcian blue 8GX and 2-3 % glutaraldehyde in 0-1 M phosphate buffer, pH 6-2, overnight at 4 °C, followed by a rinse in 0-1 M phosphate buffer plus 10 % sucrose, pH 6-2. They were post-fixed in 1 % osmium tetroxide ...
General Objectives: 1. Describe basic tenets of the fundamentals of
... 6. Describe the effects of neoplastic and traumatic injuries. 7. Describe the various types of artificial corneas 8. Describe differential surgical options for the ocular surface. 9. Explain the benefits and disadvantages of anterior segment imaging for corneal procedures. ...
... 6. Describe the effects of neoplastic and traumatic injuries. 7. Describe the various types of artificial corneas 8. Describe differential surgical options for the ocular surface. 9. Explain the benefits and disadvantages of anterior segment imaging for corneal procedures. ...
Summer 2012 - Macula Vision Research Foundation
... vision. The Amsler grid is a checker board piece of paper which patients can use at home to determine if they are experiencing distorted vision. Eye care providers emphasize the importance of patients observing “changes” in their perception of the Amsler grid over time. Changes in patients’ percepti ...
... vision. The Amsler grid is a checker board piece of paper which patients can use at home to determine if they are experiencing distorted vision. Eye care providers emphasize the importance of patients observing “changes” in their perception of the Amsler grid over time. Changes in patients’ percepti ...
Cong nystagmus - Private Eye Clinic
... Appear at birth/early infancy, persists throughout life. Causes: 1. The usual cause: a bilateral symmetric sensory defect at a critical period of life (high refraction, albinism, aniridia, retinal dystrophies, optic nerve hypoplasia, ...
... Appear at birth/early infancy, persists throughout life. Causes: 1. The usual cause: a bilateral symmetric sensory defect at a critical period of life (high refraction, albinism, aniridia, retinal dystrophies, optic nerve hypoplasia, ...
Informed Consent in State-of-the-Art Medical Care: A
... raised at any point, it is clear that the answers that Ms. Tachibana was seeking were not contained in the medical explanation, as shown in Table 1. Although, Ms. Tachibana needed to ask questions about various issues related to the operation and her life. Afterwards, in this kind of state-of-the-ar ...
... raised at any point, it is clear that the answers that Ms. Tachibana was seeking were not contained in the medical explanation, as shown in Table 1. Although, Ms. Tachibana needed to ask questions about various issues related to the operation and her life. Afterwards, in this kind of state-of-the-ar ...
The occasional tonometry - Society of Rural Physicians of Canada
... and thus indirectly measure the intraocular pressure. They do not require anesthesia of the eye — and so can be used by nonphysicians — and are preferred for screening for glaucoma. They are probably the least accurate of the 4 types and tend to give the highest readings.3 • Miniaturized tonometers, ...
... and thus indirectly measure the intraocular pressure. They do not require anesthesia of the eye — and so can be used by nonphysicians — and are preferred for screening for glaucoma. They are probably the least accurate of the 4 types and tend to give the highest readings.3 • Miniaturized tonometers, ...
Safety and effectiveness of the SUPRACOR
... Background: To evaluate the safety and effectiveness of the Supracor excimer laser algorithm to treat hyperopic presbyopic patients using laser in-situ keratomileusis (LASIK). Methods: This is a retrospective case review of patients diagnosed with hyperopia (Sphere ≥ +0.0 D and presbyopia reading ad ...
... Background: To evaluate the safety and effectiveness of the Supracor excimer laser algorithm to treat hyperopic presbyopic patients using laser in-situ keratomileusis (LASIK). Methods: This is a retrospective case review of patients diagnosed with hyperopia (Sphere ≥ +0.0 D and presbyopia reading ad ...
Japanese Journal of Ophthalmology Vol.44 No.4
... thin, rectangular scleral flaps were created 3–6 mm posterior to the limbus. The remaining layers of sclera under each flap were removed. The exposed uvea was irradiated at a mean of 60.6 spots with an argon laser just to the point of perforation. After the posterior chamber fluid escaped, the flaps ...
... thin, rectangular scleral flaps were created 3–6 mm posterior to the limbus. The remaining layers of sclera under each flap were removed. The exposed uvea was irradiated at a mean of 60.6 spots with an argon laser just to the point of perforation. After the posterior chamber fluid escaped, the flaps ...
Document
... the center of mass of the globe results in a drop of its anterior half; hence the term heavy eye (10, 11). Parks and Mitchell believed that the medial rectus muscles were acting like fibrous bands which prevent abduction in these patients (12). Duke-Elder and Wybar suggested structural changes in th ...
... the center of mass of the globe results in a drop of its anterior half; hence the term heavy eye (10, 11). Parks and Mitchell believed that the medial rectus muscles were acting like fibrous bands which prevent abduction in these patients (12). Duke-Elder and Wybar suggested structural changes in th ...
Visual Quality After Femtosecond Laser Small Incision Lenticule
... Abstract: Femtosecond laser small incision lenticule extraction (SMILE) is a newly developed form of “flapless” corneal refractive surgery with all-in-one technology. Femtosecond laser SMILE is increasingly attractive for both doctors and patients because it is minimally invasive and does not requir ...
... Abstract: Femtosecond laser small incision lenticule extraction (SMILE) is a newly developed form of “flapless” corneal refractive surgery with all-in-one technology. Femtosecond laser SMILE is increasingly attractive for both doctors and patients because it is minimally invasive and does not requir ...
الشريحة 1
... to improve the appearance of the squint . Surgery should only be considered if spectacles do not fully correct the deviation and every attempt has been made to treat amblyopia . - Bilateral medial rectus recessions are performed in patients in whom the deviation for near is greater than that for dis ...
... to improve the appearance of the squint . Surgery should only be considered if spectacles do not fully correct the deviation and every attempt has been made to treat amblyopia . - Bilateral medial rectus recessions are performed in patients in whom the deviation for near is greater than that for dis ...
Blindness And The Global Imperative
... bacteria are introduced into the eye, either through injury, postoperative infection, or through the bloodstream. The most explosive form of the disease is caused by the bacteria Bacillus cereus, which grows within the eye and produces toxins— proteins that are poisonous to the sensitive cells in th ...
... bacteria are introduced into the eye, either through injury, postoperative infection, or through the bloodstream. The most explosive form of the disease is caused by the bacteria Bacillus cereus, which grows within the eye and produces toxins— proteins that are poisonous to the sensitive cells in th ...
Guidelines for the Collaborative Management of Persons with AMD
... Vision rehabilitation reduces the disability, thereby striving to ameliorate these broad impacts. It involves a functional assessment, followed by interventions that may include low- and high-technology devices for magnification, tints, environmental modifications, training to optimize the use of ec ...
... Vision rehabilitation reduces the disability, thereby striving to ameliorate these broad impacts. It involves a functional assessment, followed by interventions that may include low- and high-technology devices for magnification, tints, environmental modifications, training to optimize the use of ec ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... uveitis with secondary cataract, glaucoma and macular edema are especially worrisome possibilities. Corneal staining and mucoid plaques may serve as signals that these serious involvements are on the way. 6 Upon presentation of herpes zoster ophthalmicus, it is critical to initiate systemic treatmen ...
... uveitis with secondary cataract, glaucoma and macular edema are especially worrisome possibilities. Corneal staining and mucoid plaques may serve as signals that these serious involvements are on the way. 6 Upon presentation of herpes zoster ophthalmicus, it is critical to initiate systemic treatmen ...
A case of bilateral acute angle closure attack with some unusual
... anterior synechiae in left eye and occludable angle in the right eye. Fundus examination was within normal limit. The patient was treated with antiglaucoma medications and steroid. Trabeculectomy was done in left eye with laser PI in the fellow eye. IOP came down within normal limits on subsequent v ...
... anterior synechiae in left eye and occludable angle in the right eye. Fundus examination was within normal limit. The patient was treated with antiglaucoma medications and steroid. Trabeculectomy was done in left eye with laser PI in the fellow eye. IOP came down within normal limits on subsequent v ...
Branch Retinal Vein Occlusion
... occur. Eyes with arteriovenous crossings appear to be at risk for BRVO. In these eyes, the artery is anterior to the vein in most cases. The artery and the vein share a common adventitial sheath. Arterial compression of the vein is believed to be the main cause of BRVO. Compression of the vein may l ...
... occur. Eyes with arteriovenous crossings appear to be at risk for BRVO. In these eyes, the artery is anterior to the vein in most cases. The artery and the vein share a common adventitial sheath. Arterial compression of the vein is believed to be the main cause of BRVO. Compression of the vein may l ...
Spectacle prescriptions and determining type of refractive error Note
... o Mixed astigmatism (MA)- one is in front, one is behind. One is positive, one is negative Ex:(+)2.00 -2.50 x 120. Principal meridian 1: (+)2.00D Principal meridian 2: (+)2.00-2.50= ().50D Ex: (+)2.00-4.00x90 Principal meridian 1: (+)2.00D Principal meridian 2: (+)2.00-4.00= ()2.00D So ...
... o Mixed astigmatism (MA)- one is in front, one is behind. One is positive, one is negative Ex:(+)2.00 -2.50 x 120. Principal meridian 1: (+)2.00D Principal meridian 2: (+)2.00-2.50= ().50D Ex: (+)2.00-4.00x90 Principal meridian 1: (+)2.00D Principal meridian 2: (+)2.00-4.00= ()2.00D So ...
Suction loss during thin-flap femto
... times daily for 1 week, along with artificial tears as needed. The steroid drops were gradually tapered over the next 3 weeks. After 1 month, the uncorrected distance visual acuity was 20/25 with a manifest refraction of 0.50 C0.5 105. No sign of the superior stromal step was seen in the slitlamp ...
... times daily for 1 week, along with artificial tears as needed. The steroid drops were gradually tapered over the next 3 weeks. After 1 month, the uncorrected distance visual acuity was 20/25 with a manifest refraction of 0.50 C0.5 105. No sign of the superior stromal step was seen in the slitlamp ...
Recurrent corneal epithelial erosion syndrome
... In this condition the surface skin of the cornea (the clear window of the eye) breaks down, causing sharp pain, watering and sometimes blurred vision. This may happen as the patient wakes after sleep. It may be due to a previous mild injury (corneal abrasion) or to a condition known as a dystrophy i ...
... In this condition the surface skin of the cornea (the clear window of the eye) breaks down, causing sharp pain, watering and sometimes blurred vision. This may happen as the patient wakes after sleep. It may be due to a previous mild injury (corneal abrasion) or to a condition known as a dystrophy i ...
How to Diagnose Ocular Abnormalities with Ultrasound
... medial to the lateral direction. Normal measurements of cadaveric equine eyes have been published and can be used as a reference; however, both eyes should be measured for comparison in the clinical setting.7 ...
... medial to the lateral direction. Normal measurements of cadaveric equine eyes have been published and can be used as a reference; however, both eyes should be measured for comparison in the clinical setting.7 ...
Original Article The Efficacy, Predictability, and Safety of Epi
... corneal thickness and curvature, pupil size, corneal and ocular pathology, and degree of ametropia. Pain tolerance is a very important factor that may influence the choice of surface ablation vs. LASIK. While the corneal flap might frighten some patients, postoperative pain and discomfort may stop o ...
... corneal thickness and curvature, pupil size, corneal and ocular pathology, and degree of ametropia. Pain tolerance is a very important factor that may influence the choice of surface ablation vs. LASIK. While the corneal flap might frighten some patients, postoperative pain and discomfort may stop o ...
Cataract surgery
Cataract surgery is the removal of the natural lens of the eye (also called ""crystalline lens"") that has developed an opacification, which is referred to as a cataract. Metabolic changes of the crystalline lens fibers over time lead to the development of the cataract and loss of transparency, causing impairment or loss of vision. Many patients' first symptoms are strong glare from lights and small light sources at night, along with reduced acuity at low light levels. During cataract surgery, a patient's cloudy natural cataract lens is removed and replaced with a synthetic lens to restore the lens's transparency.Following surgical removal of the natural lens, an artificial intraocular lens implant is inserted (eye surgeons say that the lens is ""implanted""). Cataract surgery is generally performed by an ophthalmologist (eye surgeon) in an ambulatory (rather than inpatient) setting, in a surgical center or hospital, using local anesthesia (either topical, peribulbar, or retrobulbar), usually causing little or no discomfort to the patient. Well over 90% of operations are successful in restoring useful vision, with a low complication rate. Day care, high volume, minimally invasive, small incision phacoemulsification with quick post-op recovery has become the standard of care in cataract surgery all over the world.