Accommodation Without Feedback Suggests Directional Signals
... Gorrand & Delori, 1995) and some eyes have markedly decentered Stiles-Crawford functions (e.g. Westheimer, 1968). The principles of the present method for determining focus are illustrated in Fig. 1 for a centered pupil and an aberration-free optical system. To simplify the description, angle alpha ...
... Gorrand & Delori, 1995) and some eyes have markedly decentered Stiles-Crawford functions (e.g. Westheimer, 1968). The principles of the present method for determining focus are illustrated in Fig. 1 for a centered pupil and an aberration-free optical system. To simplify the description, angle alpha ...
Latanoprost_Timolol Pfizer eye drops, solution ENG PL
... Package Leaflet: Information for the user Latanoprost/Timolol Pfizer 50 micrograms/mL + 5 mg/mL Eye Drops, Solution Latanoprost/Timolol Read all of this leaflet carefully before you start using this medicine because it contains important information for you. Keep this leaflet. You may need to read ...
... Package Leaflet: Information for the user Latanoprost/Timolol Pfizer 50 micrograms/mL + 5 mg/mL Eye Drops, Solution Latanoprost/Timolol Read all of this leaflet carefully before you start using this medicine because it contains important information for you. Keep this leaflet. You may need to read ...
Screening Preschool Children for Visual Disorders: A Pilot Study
... Although eye examinations in early infancy are important, they cannot predict the occurrence of conditions that often appear after infancy, such as accommodative esotropia. Eye examinations/screenings are therefore also recommended prior to 3 years of age. By then, additional vision problems may hav ...
... Although eye examinations in early infancy are important, they cannot predict the occurrence of conditions that often appear after infancy, such as accommodative esotropia. Eye examinations/screenings are therefore also recommended prior to 3 years of age. By then, additional vision problems may hav ...
Managing the presbyope - Johnson and Johnson Vision Care
... the lens required for near work. This is achieved by the aspheric curve inducing positive spherical aberration. Rays of light from a distant object are focused by the central zone on the retina and compete with the out-of-focus rays being formed by the surround (Figure 10). When regarding a near obj ...
... the lens required for near work. This is achieved by the aspheric curve inducing positive spherical aberration. Rays of light from a distant object are focused by the central zone on the retina and compete with the out-of-focus rays being formed by the surround (Figure 10). When regarding a near obj ...
OCCULAR DRUG DELIVERY SYSTEM
... palpebral fissure is quickly drained and the contact time of the dose with the absorbing surfaces (cornea and sclera) is reduced to a maximum of two minutes. The lacrimation and the physiological tear turnover (16% per minute in humans in normal conditions) can be stimulated and increased by the ins ...
... palpebral fissure is quickly drained and the contact time of the dose with the absorbing surfaces (cornea and sclera) is reduced to a maximum of two minutes. The lacrimation and the physiological tear turnover (16% per minute in humans in normal conditions) can be stimulated and increased by the ins ...
Updates in Cornea and Refractive Surgery
... Latest iteration in Endothelial Keratoplasty First described by Melles in 2006 Similar to DSEK but more technically challenging Better final visual acuity and contrast sensitivity The transplanted tissue contains endothelial cells and Descement’s membrane, without any stroma ~10-15 microns thick • R ...
... Latest iteration in Endothelial Keratoplasty First described by Melles in 2006 Similar to DSEK but more technically challenging Better final visual acuity and contrast sensitivity The transplanted tissue contains endothelial cells and Descement’s membrane, without any stroma ~10-15 microns thick • R ...
Gel Tears - Medicines and Healthcare products Regulatory Agency
... dry eye condition can also be caused when it is not possible to close your eyelids either partly or completely. This condition is so common that one in five patients who go to see an ophthalmologist suffers from a dry eye condition. There are many causes, such as reduced tear production in old age, ...
... dry eye condition can also be caused when it is not possible to close your eyelids either partly or completely. This condition is so common that one in five patients who go to see an ophthalmologist suffers from a dry eye condition. There are many causes, such as reduced tear production in old age, ...
Reduced misinformation effects following saccadic
... During the first phase of the experiment, participants were exposed to a photographic sequence of events accompanied by a spoken narrative describing those events. Following a short delay, participants were asked a series of questions about the photographic sequence. Some of these questions made refe ...
... During the first phase of the experiment, participants were exposed to a photographic sequence of events accompanied by a spoken narrative describing those events. Following a short delay, participants were asked a series of questions about the photographic sequence. Some of these questions made refe ...
Corneal Staining summaryV2.indd
... the biocides into the matrix of soft contact lenses due to differing molecular sizes. A large molecule, such as POLYQUAD®, is absorbed to a lesser extent than a much smaller molecule, such as chlorhexidine, leaving more of the disinfectant available in solution to kill contaminating microorganisms. ...
... the biocides into the matrix of soft contact lenses due to differing molecular sizes. A large molecule, such as POLYQUAD®, is absorbed to a lesser extent than a much smaller molecule, such as chlorhexidine, leaving more of the disinfectant available in solution to kill contaminating microorganisms. ...
Visual acuity and correctable visual impairment among Norwegian
... Four out of the six participants who had correctable visual impairment (HVA Snellen < 0.5 which improved to BCVA ≥ 0.50) reported that it was more than 5 years since last vision examination. Table 3 shows the distribution of correctable visual impairment with regard to gender, time since last vision ...
... Four out of the six participants who had correctable visual impairment (HVA Snellen < 0.5 which improved to BCVA ≥ 0.50) reported that it was more than 5 years since last vision examination. Table 3 shows the distribution of correctable visual impairment with regard to gender, time since last vision ...
the purkinje vascular entoptic test: a halogen light gives
... Our results were superior to those previously reported. We attribute the increased accuracy of our test to the brighter light source used. ...
... Our results were superior to those previously reported. We attribute the increased accuracy of our test to the brighter light source used. ...
Prevent Blindness Foundation Queensland Eye Institute 2011
... Beryl comes from a family with a history of the eye disease Fuchs Dystrophy. Both her grandmother and mother spent the last years of their life without vision. Beryl also suffers from Fuchs Dystrophy and has experienced extensive eye treatment including two corneal transplants, but due to the many a ...
... Beryl comes from a family with a history of the eye disease Fuchs Dystrophy. Both her grandmother and mother spent the last years of their life without vision. Beryl also suffers from Fuchs Dystrophy and has experienced extensive eye treatment including two corneal transplants, but due to the many a ...
Package Insert Instructions
... The 55/56-CLEAR, TINTED AND COSTUME COSMETIC Single Vision (Methafilcon A or Ocufilcon D) Soft (Hydrophilic) Contact Lens is indicated for daily wear for the correction of refractive ametropia (myopia and hyperopia) in aphakic and not-aphakic persons with non-diseased eyes that may exhibit refractiv ...
... The 55/56-CLEAR, TINTED AND COSTUME COSMETIC Single Vision (Methafilcon A or Ocufilcon D) Soft (Hydrophilic) Contact Lens is indicated for daily wear for the correction of refractive ametropia (myopia and hyperopia) in aphakic and not-aphakic persons with non-diseased eyes that may exhibit refractiv ...
Correlation of Aberrations With Visual Symptoms Using Wavefront
... undergo laser in situ keratomileusis (LASIK).1 Although it is effective, the surgical modification of corneal shape might influence the optical quality of the eye, creating aberrations that will lead to distorted images.2 Standard laser refractive surgery eliminates conventional refractive errors, y ...
... undergo laser in situ keratomileusis (LASIK).1 Although it is effective, the surgical modification of corneal shape might influence the optical quality of the eye, creating aberrations that will lead to distorted images.2 Standard laser refractive surgery eliminates conventional refractive errors, y ...
Binocular Vision and Space Perception
... Retinal elements of the two eyes that share a common subjective visual direction are called corresponding retinal points. All other retinal elements are noncorresponding or disparate with respect to a given retinal element in the fellow eye. This definition also may be stated in the following way: c ...
... Retinal elements of the two eyes that share a common subjective visual direction are called corresponding retinal points. All other retinal elements are noncorresponding or disparate with respect to a given retinal element in the fellow eye. This definition also may be stated in the following way: c ...
From Emblems to Diagrams: Kepler`s New Pictorial Language of
... not easily recollected. Thus one's understanding of these geometrical figures must go beyond their quantitative aspect. Recollecting the essence of geometric shapes will lead to the understanding that a square is not a mere theoretical quantity but actually a symbol for the chemical qualities of the ...
... not easily recollected. Thus one's understanding of these geometrical figures must go beyond their quantitative aspect. Recollecting the essence of geometric shapes will lead to the understanding that a square is not a mere theoretical quantity but actually a symbol for the chemical qualities of the ...
Laser adjustable intraocular lens and method of altering lens power
... pair of interconnected clear, ?exible faces 10 and 12 between lens 18 and optical section 22 changes thereby interconnected at their circumference to provide an altering the corrective power of the implanted intraocu enclosed chamber or sac containing an inert optically transparent ?uid, gel, or oth ...
... pair of interconnected clear, ?exible faces 10 and 12 between lens 18 and optical section 22 changes thereby interconnected at their circumference to provide an altering the corrective power of the implanted intraocu enclosed chamber or sac containing an inert optically transparent ?uid, gel, or oth ...
The effect of interruption of the short posterior ciliary arteries
... Results. In eight eyes, from four animals, tritiated leucine was injected into the vitreous two to three hours prior to surgery. This should have permitted sufficient time for the synthesis of ganglion cell protein to be completed7 before the induction of alterations in blood dynamics. A four-day in ...
... Results. In eight eyes, from four animals, tritiated leucine was injected into the vitreous two to three hours prior to surgery. This should have permitted sufficient time for the synthesis of ganglion cell protein to be completed7 before the induction of alterations in blood dynamics. A four-day in ...
Adaptive Changes in the Retina and Central Visual Areas in
... psychophysiologically in the experimental animals. Slow horizontal head and body rotation occurs in rats when the visual fields are rotated around them. These optomotor responses can be readily reproduced. When one eye is closed, only motion in the temporal to nasal direction for the contralateral e ...
... psychophysiologically in the experimental animals. Slow horizontal head and body rotation occurs in rats when the visual fields are rotated around them. These optomotor responses can be readily reproduced. When one eye is closed, only motion in the temporal to nasal direction for the contralateral e ...
Two waves of virus following anterior chamber inoculation of
... Animals were considered to be positive for retinitis if the microscopic architecture of the retina of the uninoculated eye was destroyed by an inflammatory process characterized by the presence of a large number of inflammatory cells, cellular infiltrates, and fibrinous exudate as described previous ...
... Animals were considered to be positive for retinitis if the microscopic architecture of the retina of the uninoculated eye was destroyed by an inflammatory process characterized by the presence of a large number of inflammatory cells, cellular infiltrates, and fibrinous exudate as described previous ...
The role of anterior segment optical coherence tomography in the
... segment optical coherence tomography (AS-OCT) is a valuable tool for the early diagnosis and monitoring the progress of treatment in cases of ocular trauma. Herein we aimed to report on a patient with an intra-corneal foreign body and the role of AS-OCT in management. Case presentation: A 34-year-o ...
... segment optical coherence tomography (AS-OCT) is a valuable tool for the early diagnosis and monitoring the progress of treatment in cases of ocular trauma. Herein we aimed to report on a patient with an intra-corneal foreign body and the role of AS-OCT in management. Case presentation: A 34-year-o ...
Canaloplasty in One Eye Compared With Viscocanalostomy
... of a diagnosis of open-angle glaucoma including pseudoexfoliative and pigmentary glaucoma and a baseline IOP of 18 mm Hg or higher taken at most 60 days before surgery. The glaucoma diagnosis was based on biomicroscopy and gonioscopy observations, optic nerve head cupping, and visual field findings. E ...
... of a diagnosis of open-angle glaucoma including pseudoexfoliative and pigmentary glaucoma and a baseline IOP of 18 mm Hg or higher taken at most 60 days before surgery. The glaucoma diagnosis was based on biomicroscopy and gonioscopy observations, optic nerve head cupping, and visual field findings. E ...
Human eye
The human eye is an organ that reacts to light and has several purposes. As a sense organ, the mammalian eye allows vision. Rod and cone cells in the retina allow conscious light perception and vision including color differentiation and the perception of depth. The human eye can distinguish about 10 million colors.Similar to the eyes of other mammals, the human eye's non-image-forming photosensitive ganglion cells in the retina receive light signals which affect adjustment of the size of the pupil, regulation and suppression of the hormone melatonin and entrainment of the body clock.