Causes of severe visual impairment and blindness in schools for
... vision schools. This rehabilitation allows a return to normal life; however, if the causes of blindness remain unknown and no programme for their prevention is designed, the current facilities are not enough for such a large population. Related studies have been performed in many countries.3–14 The ...
... vision schools. This rehabilitation allows a return to normal life; however, if the causes of blindness remain unknown and no programme for their prevention is designed, the current facilities are not enough for such a large population. Related studies have been performed in many countries.3–14 The ...
Ocular Blood Flow Autoregulation Mechanisms and Methods
... reproducible [19, 22]. CDI may be particularly useful in cases with media opacities. 3.2. Doppler Fourier Domain Optical Coherence Tomography (Doppler FD-OCT). One of the main advantages of the technique over the existing methods of measuring retinal blood flow is its ability to rapidly provide the ...
... reproducible [19, 22]. CDI may be particularly useful in cases with media opacities. 3.2. Doppler Fourier Domain Optical Coherence Tomography (Doppler FD-OCT). One of the main advantages of the technique over the existing methods of measuring retinal blood flow is its ability to rapidly provide the ...
Counteracting Complications of Glaucoma Filtration Surgery
... have tested a treatment regimen involving the separate application of sodium hyaluronate, autologous serum, and antibiotic eye drops to treat bleb leak. However, while the epithelial defects were resolved for a few months, this SCIENTI A ...
... have tested a treatment regimen involving the separate application of sodium hyaluronate, autologous serum, and antibiotic eye drops to treat bleb leak. However, while the epithelial defects were resolved for a few months, this SCIENTI A ...
Pupillary Abnormalities
... It can be hard to perform the test accurately. Examiner bias, light position variability, and difficulty observing both eyes, dark irises, pre-existing anisocoria, small pupils and the presence of efferent defects may make it difficult to detect asymmetry. In glaucoma an RAPD indicates that there is ...
... It can be hard to perform the test accurately. Examiner bias, light position variability, and difficulty observing both eyes, dark irises, pre-existing anisocoria, small pupils and the presence of efferent defects may make it difficult to detect asymmetry. In glaucoma an RAPD indicates that there is ...
Our experience with Athens protocol
... moderate (48-52D) and severe (>52D).9 In present study, majority of the patients (54%) fell into the mild category followed by moderate (36%), while only 10% patients had severe degree of keratoconus. The visual acuity, refractive and topographic outcomes of the PRK plus CXL procedure in eyes diagno ...
... moderate (48-52D) and severe (>52D).9 In present study, majority of the patients (54%) fell into the mild category followed by moderate (36%), while only 10% patients had severe degree of keratoconus. The visual acuity, refractive and topographic outcomes of the PRK plus CXL procedure in eyes diagno ...
- howMed Lectures
... Anisometropia in unilateral aphakia Aberrations Heavy lenses (glasses) Visual field limitation Loss of ultra-violet protection Other problems ...
... Anisometropia in unilateral aphakia Aberrations Heavy lenses (glasses) Visual field limitation Loss of ultra-violet protection Other problems ...
Computed SAR and thermal elevation in a 0.25-mm 2
... In Section IV-A, the initial steady-state temperature distribution in the absence of choroidal blood flow was computed as a starting point for simulations predicting thermal increase. Similarly, a new initial distribution is computed in the presence of choroidal blood flow. Once again, this is obtai ...
... In Section IV-A, the initial steady-state temperature distribution in the absence of choroidal blood flow was computed as a starting point for simulations predicting thermal increase. Similarly, a new initial distribution is computed in the presence of choroidal blood flow. Once again, this is obtai ...
A Reanalysis of the Collaborative Ocular Melanoma Study Medium
... Following the completion of the trial, patient follow-ups were continued and at present, the majority of the patients have been followed for 5 years. Using the follow-up data, an analysis was then undertaken by the COMS Coordinating Center to determine any differences in survival between the two ar ...
... Following the completion of the trial, patient follow-ups were continued and at present, the majority of the patients have been followed for 5 years. Using the follow-up data, an analysis was then undertaken by the COMS Coordinating Center to determine any differences in survival between the two ar ...
Middle turbinate mucopyocele: a case report
... runs along its anterior limit, and it may be aired (called bullous concha). The first description of bullous concha was made in 1893 by Zuckerlandl7. When there is pneumatization of middle concha, there is a large air volume that is enough for its growth, before it may present any symptom. Its pneum ...
... runs along its anterior limit, and it may be aired (called bullous concha). The first description of bullous concha was made in 1893 by Zuckerlandl7. When there is pneumatization of middle concha, there is a large air volume that is enough for its growth, before it may present any symptom. Its pneum ...
INTRODUCTION Childhood blindness is increasingly becoming a
... of the lens was the leading anatomical site of visual loss accounting for 30.7% of the study population. 11 It is however at variance with the findings of a study carried out in Ethiopia in which the major anatomical site of visual loss was cornea/pthisis (62.4%).10 An Indian study established the r ...
... of the lens was the leading anatomical site of visual loss accounting for 30.7% of the study population. 11 It is however at variance with the findings of a study carried out in Ethiopia in which the major anatomical site of visual loss was cornea/pthisis (62.4%).10 An Indian study established the r ...
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 ...
Printing - Philosophical Transactions of the Royal Society B
... to exclude an intraocular FB. Diagnosis is with fluorescein staining after an anaesthetic drop is instilled to allow examination of the eye. There is often a sterile infiltrate surrounding the FB, especially if it has been present for more than 24 h. The eyelids should be everted and if necessary do ...
... to exclude an intraocular FB. Diagnosis is with fluorescein staining after an anaesthetic drop is instilled to allow examination of the eye. There is often a sterile infiltrate surrounding the FB, especially if it has been present for more than 24 h. The eyelids should be everted and if necessary do ...
(CLEK) Study.
... with their clinically measured visual performance. None of the attempts to stage and classify keratoconus has been performed in a standardized manner. The CLEK Study is a multicenter, prospective, observational study designed to describe the course of keratoconus and to describe the associations amo ...
... with their clinically measured visual performance. None of the attempts to stage and classify keratoconus has been performed in a standardized manner. The CLEK Study is a multicenter, prospective, observational study designed to describe the course of keratoconus and to describe the associations amo ...
PDF Edition - Review of Ophthalmology
... in explaining to our patients with diabetes that the condition can have a detrimental effect on their eyes,” says study leader Neil M. Bressler, MD, a professor of ophthalmology at the Johns Hopkins University School of Medicine and chief of the retina division at the Johns Hopkins Wilmer Eye Instit ...
... in explaining to our patients with diabetes that the condition can have a detrimental effect on their eyes,” says study leader Neil M. Bressler, MD, a professor of ophthalmology at the Johns Hopkins University School of Medicine and chief of the retina division at the Johns Hopkins Wilmer Eye Instit ...
Deferred PRP Group - Jaeb Center for Health Research
... E-ETDRS best-corrected visual acuity in both eyes Ocular exam and IOP in the study eye (extended ophthalmoscopy in deferred PRP group) OCT only if eye • 1) has initiated DME treatment, • 2) will be evaluated for initial DME treatment, or ...
... E-ETDRS best-corrected visual acuity in both eyes Ocular exam and IOP in the study eye (extended ophthalmoscopy in deferred PRP group) OCT only if eye • 1) has initiated DME treatment, • 2) will be evaluated for initial DME treatment, or ...
Blepharoplasty with or without Levator Muscle Advancement
... approaching from periphery); or 2. Difficulty reading due to superior visual field loss; or 3. Looking through the eyelashes or seeing the upper eyelid skin; OR E. Significant congenital or acquired deformities, deformities beyond normal variations and accompanied by functional deficits. These must ...
... approaching from periphery); or 2. Difficulty reading due to superior visual field loss; or 3. Looking through the eyelashes or seeing the upper eyelid skin; OR E. Significant congenital or acquired deformities, deformities beyond normal variations and accompanied by functional deficits. These must ...
Ophthalmology and Vision Science
... ably be due to the association between keratoconus and atopic disorders which causes the release of histamine during allergic episodes resulting in eye itchiness. Allergic conjunctivitis has been reported as one of the common outpatient eye conditions in most eye clinics in Ghana due to the environm ...
... ably be due to the association between keratoconus and atopic disorders which causes the release of histamine during allergic episodes resulting in eye itchiness. Allergic conjunctivitis has been reported as one of the common outpatient eye conditions in most eye clinics in Ghana due to the environm ...
Cataract Surgery in a Leprosy Population in Liberia`
... the standard aphakic spectacles of +10.00 diopter power are the only optical device available for this population. A large variety of visual results (functional vision in 27%-80%) following cataract surgery in leprosy populations has been reported ( -4 'ft 12 ). The postoperative visual results are ...
... the standard aphakic spectacles of +10.00 diopter power are the only optical device available for this population. A large variety of visual results (functional vision in 27%-80%) following cataract surgery in leprosy populations has been reported ( -4 'ft 12 ). The postoperative visual results are ...
Submission to the Ministry of Health Services, Province of British
... documents are not only effective tools for eliminating those individuals who are not appropriate candidates for an optician-performed sight test, but will serve as triggers for discussion through which the optician can answer questions and provide direction. 2.5 Appropriate Referral Opticians are fr ...
... documents are not only effective tools for eliminating those individuals who are not appropriate candidates for an optician-performed sight test, but will serve as triggers for discussion through which the optician can answer questions and provide direction. 2.5 Appropriate Referral Opticians are fr ...
Practice advisory for perioperative visual loss associated with spine
... A. Definition of Perioperative Visual loss Visual loss after spine surgery is an uncommon occurrence.1–3 Ophthalmic complications have been reported to occur in less than 0.2% of spine surgeries.4 – 8 For this Advisory, perioperative visual loss refers to permanent impairment or total loss of sight ...
... A. Definition of Perioperative Visual loss Visual loss after spine surgery is an uncommon occurrence.1–3 Ophthalmic complications have been reported to occur in less than 0.2% of spine surgeries.4 – 8 For this Advisory, perioperative visual loss refers to permanent impairment or total loss of sight ...
Retained Intraocular Foreign Body
... scleral depression should not be done in open globe injuries12 because they may result in extrusion of the intraocular contents. 3. INVESTIGATIONS CT scan with thin slices is currently considered the gold standard for the detection, localization and characterization of both metallic and non-metallic ...
... scleral depression should not be done in open globe injuries12 because they may result in extrusion of the intraocular contents. 3. INVESTIGATIONS CT scan with thin slices is currently considered the gold standard for the detection, localization and characterization of both metallic and non-metallic ...
fact sheets - American Optometric Association
... 1. Binocular vision disorder, unspecified usually requires a minimum of 12 hours of office therapy. 2. General binocular vision dysfunction complicated by: a. suppression: up to an additional 8 hours of office therapy b. diminished stereopsis: up to an additional 8 hours of office therapy c. other d ...
... 1. Binocular vision disorder, unspecified usually requires a minimum of 12 hours of office therapy. 2. General binocular vision dysfunction complicated by: a. suppression: up to an additional 8 hours of office therapy b. diminished stereopsis: up to an additional 8 hours of office therapy c. other d ...
Proptosis (`exophthalmos`, or `bulging` of the eye)
... This depends on the cause of the proptosis, and whether the ocular surface is exposed by the relatively prominent position of the eye. A thorough history and examination are required first, this often followed by certain investigations which may include testing the visual fields, blood tests, and im ...
... This depends on the cause of the proptosis, and whether the ocular surface is exposed by the relatively prominent position of the eye. A thorough history and examination are required first, this often followed by certain investigations which may include testing the visual fields, blood tests, and im ...
Opthalmic products types of additives
... generally found to be present in bacteria which is ophthalmic products . It may cause serious infections of cornea . It can cause complete loss of eye sight in 24-48 hours . To maintain sterility in multi dose container , containing ophthalmic products , a suitable preservative is added . The preser ...
... generally found to be present in bacteria which is ophthalmic products . It may cause serious infections of cornea . It can cause complete loss of eye sight in 24-48 hours . To maintain sterility in multi dose container , containing ophthalmic products , a suitable preservative is added . The preser ...
Visual impairment due to intracranial pressure
Spaceflight induced visual impairment is hypothesized to be a result of increased intracranial pressure. The study of visual changes and intracranial pressure (ICP) in astronauts on long-duration flights is a relatively recent topic of interest to Space Medicine professionals. Although reported signs and symptoms have not appeared to be severe enough to cause blindness in the near term, long term consequences of chronically elevated intracranial pressure is unknown.NASA has reported that fifteen long-duration male astronauts (45–55 years of age) have experienced confirmed visual and anatomical changes during or after long-duration flights. Optic disc edema, globe flattening, choroidal folds, hyperopic shifts and an increased intracranial pressure have been documented in these astronauts. Some individuals experienced transient changes post-flight while others have reported persistent changes with varying degrees of severity.Although the exact cause is not known at this time, it is suspected that microgravity-induced cephalad fluid shift and comparable physiological changes play a significant role in these changes. Other contributing factors may include pockets of increased CO2 and an increase in sodium intake. It seems unlikely that resistive or aerobic exercise are contributing factors, but they may be potential countermeasures to reduce intraocular pressure (IOP) or intracranial pressure (ICP) in-flight.