Design of a Mobile Application for Eye Signs Screening
... screening are described, portraying some ocular pathologies (amblyopia and retinoblastoma e.g.) that can be detected with a photograph using solely a smartphone with flash. Also the data collection protocol necessary to obtain this data and later process it with the use of algorithms are depicted. A ...
... screening are described, portraying some ocular pathologies (amblyopia and retinoblastoma e.g.) that can be detected with a photograph using solely a smartphone with flash. Also the data collection protocol necessary to obtain this data and later process it with the use of algorithms are depicted. A ...
Comparison of Rigid Gas Permeable and Toric Soft Lens for
... reduction observed per diopter of induced cylinder.7 Since contact lenses fit directly on the eye, their effects on imag magnification are minimal, which means the correction of astigmatism with contact lens does not cause the same spatial distortions that can occur with astigmatic spectacle correct ...
... reduction observed per diopter of induced cylinder.7 Since contact lenses fit directly on the eye, their effects on imag magnification are minimal, which means the correction of astigmatism with contact lens does not cause the same spatial distortions that can occur with astigmatic spectacle correct ...
NYSTAGMUS
... Most often occurs in isolation (motor), but may be associated with albinism, LCA, achromatopsia, or optic atrophy Uniplanar, horizontal trajectory irrespective of gaze position No oscillopsia Reversal of OKN direction Exponential increase in slow phase velocity Conjugate Null point (may have resulta ...
... Most often occurs in isolation (motor), but may be associated with albinism, LCA, achromatopsia, or optic atrophy Uniplanar, horizontal trajectory irrespective of gaze position No oscillopsia Reversal of OKN direction Exponential increase in slow phase velocity Conjugate Null point (may have resulta ...
National Vision and Hearing Screening Protocols
... headphones) and explain that you will be playing a simple game. Tell the child that you will be making some sounds or beeps with the machine. Leave the headphones on the desk with headphones facing toward child. Demonstrate with a 1000 Hz tone at 100 dB. Explain to the child that, to play the game, ...
... headphones) and explain that you will be playing a simple game. Tell the child that you will be making some sounds or beeps with the machine. Leave the headphones on the desk with headphones facing toward child. Demonstrate with a 1000 Hz tone at 100 dB. Explain to the child that, to play the game, ...
school integration for patients with amblyopia
... anomalies and 6,97% had congenital cataract or sequelae after ocular trauma. ...
... anomalies and 6,97% had congenital cataract or sequelae after ocular trauma. ...
Pediatric Strabismus - Database Reserved Area
... mental studies of amblyopia have been performed primarily in kittens and nonhuman primates, similar pathologic features have been reported in humans with amblyopia caused by strabismus7 or anisometropia (a difference between the eyes in the refractive error).8 Perturbations in the visual system that ...
... mental studies of amblyopia have been performed primarily in kittens and nonhuman primates, similar pathologic features have been reported in humans with amblyopia caused by strabismus7 or anisometropia (a difference between the eyes in the refractive error).8 Perturbations in the visual system that ...
PATTERN AND OUTCOME OF POSTERIOR SEGMENT INJURIES
... The application of appropriate vitreoretinal surgery to prevent or treat secondary complications may result in the preservation of eyes that would otherwise be lost9. ...
... The application of appropriate vitreoretinal surgery to prevent or treat secondary complications may result in the preservation of eyes that would otherwise be lost9. ...
Bilateral Congenital Protruding Corneal Leukoma
... and cornea in both eyes. In both eyes after trephination clear lens was expulsed spontaneously and anterior vitrectomy was performed. Vitreous of both eyes had some organization in central part. Temporal to the macula in both eyes a retinal scar could be seen. In the left eye, iris was normal and no ...
... and cornea in both eyes. In both eyes after trephination clear lens was expulsed spontaneously and anterior vitrectomy was performed. Vitreous of both eyes had some organization in central part. Temporal to the macula in both eyes a retinal scar could be seen. In the left eye, iris was normal and no ...
Secondary Glaucomas - International Glaucoma Association
... Glaucoma is the name given to a number of conditions in which the optic nerve is damaged. The optic nerve is the nerve that transmits vision from the eye to the brain. Glaucoma damage in the optic nerve has a characteristic appearance and can affect the vision, causing progressive visual loss if unt ...
... Glaucoma is the name given to a number of conditions in which the optic nerve is damaged. The optic nerve is the nerve that transmits vision from the eye to the brain. Glaucoma damage in the optic nerve has a characteristic appearance and can affect the vision, causing progressive visual loss if unt ...
Combined Kerarings and Artisan/Artiflex IOLs in Keratectasia
... improve the topographic and optical properties of the cornea and to secondarily improve visual acuity. Its efficacy in both primary and secondary keratectasias has been shown by several studies.14,15 The procedure is shown to be more efficient in terms of refractive and optical correction in eyes wi ...
... improve the topographic and optical properties of the cornea and to secondarily improve visual acuity. Its efficacy in both primary and secondary keratectasias has been shown by several studies.14,15 The procedure is shown to be more efficient in terms of refractive and optical correction in eyes wi ...
Vision Science II - Visual Optics Institute
... c. accommodation plays a critical role in late-onset or early adult onset myopia. d. genetic factors have little impact on refractive development. e. males are more susceptible to the effects of near work than females. 20. Which of the following conditions are least likely to be an ocular sequelae o ...
... c. accommodation plays a critical role in late-onset or early adult onset myopia. d. genetic factors have little impact on refractive development. e. males are more susceptible to the effects of near work than females. 20. Which of the following conditions are least likely to be an ocular sequelae o ...
ten common sense reasons why you should not have lasik
... reshape a steep sphere into a flat sphere, rather than to reshape a steep prolate into a flatter prolate. As a result, excimer lasers reshape prolate corneas into oblate ones, a shape that is optically worse because now peripheral rays are bent more powerfully, causing more pronounced spherical aber ...
... reshape a steep sphere into a flat sphere, rather than to reshape a steep prolate into a flatter prolate. As a result, excimer lasers reshape prolate corneas into oblate ones, a shape that is optically worse because now peripheral rays are bent more powerfully, causing more pronounced spherical aber ...
the effect of trabeculectomy on refraction
... corneal topography was performed before and after trabeculectomy. Three types of change emerged: some subjects showed a superior corneal steepening, whereas others developed a superior corneal flatten ing; yet other subjects had complex regional changes ...
... corneal topography was performed before and after trabeculectomy. Three types of change emerged: some subjects showed a superior corneal steepening, whereas others developed a superior corneal flatten ing; yet other subjects had complex regional changes ...
Titmus V4 / Titmus V2 - Honeywell Safety Products
... The Importance of Vision Screening The eyes are a person’s windows to the world. Without good vision, one can experience a sense of helplessness and may even suffer in other skills necessary for a full and functional lifestyle. Utilizing the Titmus VSeries vision screeners, you will quickly be capab ...
... The Importance of Vision Screening The eyes are a person’s windows to the world. Without good vision, one can experience a sense of helplessness and may even suffer in other skills necessary for a full and functional lifestyle. Utilizing the Titmus VSeries vision screeners, you will quickly be capab ...
The Effects of Luminance on FPL and VEP Acuity in
... reveal that infants' resolution performance continues to improve at high light levels. Moreover, finer acuity estimates will be important to comparisons with ideal performance. There have been no reports of infants' VEP acuity as a function of luminance. Fiorentini, Pirchio and Spinelli (1980) recor ...
... reveal that infants' resolution performance continues to improve at high light levels. Moreover, finer acuity estimates will be important to comparisons with ideal performance. There have been no reports of infants' VEP acuity as a function of luminance. Fiorentini, Pirchio and Spinelli (1980) recor ...
MINISTRY OF HEALTH GUIDELINES FOR EYE CARE
... ♦♦ Consent for surgery ♦♦ Biometry ♦♦ Intra-Ocular Lens (IOL) selection (type and power) ♦♦ Topical antibiotics ♦♦ Check for any infection around the eye including the lacrimal apparatus. Treatment: The treatment of cataract is surgery. This is normally done under local anaesthesia. ...
... ♦♦ Consent for surgery ♦♦ Biometry ♦♦ Intra-Ocular Lens (IOL) selection (type and power) ♦♦ Topical antibiotics ♦♦ Check for any infection around the eye including the lacrimal apparatus. Treatment: The treatment of cataract is surgery. This is normally done under local anaesthesia. ...
glaucomatous ocular hypertension - British Journal of Ophthalmology
... PERSONS who present ocular hypertension following iritis, traumatism or tumour may have hard eyes and increased intraocular tension without necessarily being glaucomatous. While certain cases of this kind may be benefited by decompressive treatment, it is necessary to distinguish such conditions fro ...
... PERSONS who present ocular hypertension following iritis, traumatism or tumour may have hard eyes and increased intraocular tension without necessarily being glaucomatous. While certain cases of this kind may be benefited by decompressive treatment, it is necessary to distinguish such conditions fro ...
VARILUX S SERIES COMPENDIUM
... simultaneous perception of images from two eyes. Until now, however, progressive lenses have had to be designed monocularly—the lens design in one eye could not take into account vision in the other eye. The revolutionary SynchronEyes Technology™ breaks this paradigm, and for the first time lens des ...
... simultaneous perception of images from two eyes. Until now, however, progressive lenses have had to be designed monocularly—the lens design in one eye could not take into account vision in the other eye. The revolutionary SynchronEyes Technology™ breaks this paradigm, and for the first time lens des ...
To Fit or Not to Fit: A Review of Medically Necessary Contact Lenses
... readily with the use of a therapeutic contact lenses (TCLs). Nearly every lens type can be used in a therapeutic capacity. The five main uses of a TLC: 1. Relief of ocular pain • The relief of pain is the common aim of treatment in ocular conditions resulting in ...
... readily with the use of a therapeutic contact lenses (TCLs). Nearly every lens type can be used in a therapeutic capacity. The five main uses of a TLC: 1. Relief of ocular pain • The relief of pain is the common aim of treatment in ocular conditions resulting in ...
Techniques of Endoscopic Cyclophotocoagulation
... avoided. Because ECP is performed with a near infrared laser wavelength, there is no visible laser ‘‘flash’’ when it is fired. One uses very long duration applications lasting for many seconds while ‘‘painting’’ the ciliary ring. Because the progress of photocoagulation can be directly monitored and ...
... avoided. Because ECP is performed with a near infrared laser wavelength, there is no visible laser ‘‘flash’’ when it is fired. One uses very long duration applications lasting for many seconds while ‘‘painting’’ the ciliary ring. Because the progress of photocoagulation can be directly monitored and ...
Techniques of Endoscopic Cyclophotocoagulation
... avoided. Because ECP is performed with a near infrared laser wavelength, there is no visible laser ‘‘flash’’ when it is fired. One uses very long duration applications lasting for many seconds while ‘‘painting’’ the ciliary ring. Because the progress of photocoagulation can be directly monitored and ...
... avoided. Because ECP is performed with a near infrared laser wavelength, there is no visible laser ‘‘flash’’ when it is fired. One uses very long duration applications lasting for many seconds while ‘‘painting’’ the ciliary ring. Because the progress of photocoagulation can be directly monitored and ...
Poster Session/ Cornea surgery, refractive
... between the two groups. At 1 month postop, more eyes achieved 20/16 and 20/20 uncorrected distant vision with the new aberrometer compared to the contemporary (new aberrometer: 84.0% and 95.4%; contemporary: 79.7% and 93.8% of eyes with 20/16 and 20/20 UCVA, respectively). The refractive predictabil ...
... between the two groups. At 1 month postop, more eyes achieved 20/16 and 20/20 uncorrected distant vision with the new aberrometer compared to the contemporary (new aberrometer: 84.0% and 95.4%; contemporary: 79.7% and 93.8% of eyes with 20/16 and 20/20 UCVA, respectively). The refractive predictabil ...
Evaluating strategies to address eye health inequalities
... in major electronic databases up to ...
... in major electronic databases up to ...
Diabetic Retinopathy
... People with diabetes who present with an acute impairment of vision from any cause should be referred for urgent review with an ophthalmologist/eye clinic. Best practice tip: Retinal photo-screening for diabetic retinopathy does not constitute a full eye examination. Patients should still be regul ...
... People with diabetes who present with an acute impairment of vision from any cause should be referred for urgent review with an ophthalmologist/eye clinic. Best practice tip: Retinal photo-screening for diabetic retinopathy does not constitute a full eye examination. Patients should still be regul ...
Glaucoma in Children of the Developing World al n
... Basic Principles for Management of Glaucoma in Children v The initial treatment may not be successful for the lifespan of the patient. A plan for the child must be formulated, or at least appreciated by the first as well as subsequent doctors, so as to utilize ALL options in a logical & optimal sequ ...
... Basic Principles for Management of Glaucoma in Children v The initial treatment may not be successful for the lifespan of the patient. A plan for the child must be formulated, or at least appreciated by the first as well as subsequent doctors, so as to utilize ALL options in a logical & optimal sequ ...
Visual impairment
Visual impairment, also known as vision impairment or vision loss, is a decreased ability to see to a degree that causes problems not fixable by usual means, such as glasses. Some also include those who have a decreased ability to see because they do not have access to glasses or contact lenses. Visual impairment is often defined as a best corrected visual acuity of worse than either 20/40 or 20/60. The term blindness is used for complete or nearly complete vision loss. Visual impairment may cause people difficulties with normal daily activities such as driving, reading, socializing, and walking.The most common causes of visual impairment globally are uncorrected refractive errors (43%), cataracts (33%), and glaucoma (2%). Refractive errors include near sighted, far sighted, presbyopia, and astigmatism. Cataracts are the most common cause of blindness. Other disorders that may cause visual problems include age related macular degeneration, diabetic retinopathy, corneal clouding, childhood blindness, and a number of infections. Visual impairment can also be caused by problems in the brain due to stroke, prematurity, or trauma among others. These cases are known as cortical visual impairment. Screening for vision problems in children may improve future vision and educational achievement. Screening adults may also be beneficial. Diagnosis is by an eye exam.The World Health Organization estimates that 80% of visual impairment is either preventable or curable with treatment. This includes cataracts, the infections river blindness and trachoma, glaucoma, diabetic retinopathy, uncorrected refractive errors, and some cases of childhood blindness. Many people with significant visual impairment benefit from vision rehabilitation, changes in their environmental, and assistive devices.As of 2012 there were 285 million people who were visually impaired of which 246 million had low vision and 39 million were blind. The majority of people with poor vision are in the developing world and are over the age of 50 years. Rates of visual impairment have decreased since the 1990s. Visual impairments have considerable economic costs both directly due to the cost of treatment and indirectly due to decreased ability to work.