Reflectometry with a scanning laser ophthalmoscope
... the grid target for alignment and the size calibration of the image and raster. Raster size, shape, and uniformity as well as image uniformity require both electronic and optical adjustments. The size of the raster and the imaged area is chosen to be a 28.6 x 23.0 deg (large field) or 15.2 x 13.6 de ...
... the grid target for alignment and the size calibration of the image and raster. Raster size, shape, and uniformity as well as image uniformity require both electronic and optical adjustments. The size of the raster and the imaged area is chosen to be a 28.6 x 23.0 deg (large field) or 15.2 x 13.6 de ...
Acute Chemical Injuries
... metalloproteinases (MMP) and other proteases released from regenerating corneal epithelium and PMNLs. ...
... metalloproteinases (MMP) and other proteases released from regenerating corneal epithelium and PMNLs. ...
Evolution of Vitreo Retinal Surgery
... illumination. The 16G instrument was a unimanual, full function probe. Initially, the VISC utilized slit illumination from the microscope, but soon this was replaced by a coaxial illumination sleeve. In addition to the light and aspiration channels, a third channel brought in gravity-fed fluid infus ...
... illumination. The 16G instrument was a unimanual, full function probe. Initially, the VISC utilized slit illumination from the microscope, but soon this was replaced by a coaxial illumination sleeve. In addition to the light and aspiration channels, a third channel brought in gravity-fed fluid infus ...
MD Research News - Macular Disease Foundation Australia
... tomography, fundus autofluorescence, and fluorescein and indocyanine green angiography were performed for the diagnosis of adult-onset foveomacular vitelliform dystrophy and choroidal neovascularization. After initial 3 monthly injections of ranibizumab, patients were followed up monthly and retreat ...
... tomography, fundus autofluorescence, and fluorescein and indocyanine green angiography were performed for the diagnosis of adult-onset foveomacular vitelliform dystrophy and choroidal neovascularization. After initial 3 monthly injections of ranibizumab, patients were followed up monthly and retreat ...
Microsaccadic eye movements and firing of single cells in the striate
... algorithm depends on both freedom from bias as to microsaccade direction and accurate assessment of total size and speed of eye movements to help separate out drifts and blinks. Our algorithm therefore expresses eye position in polar coordinates, uses low velocity thresholds and is free of direction ...
... algorithm depends on both freedom from bias as to microsaccade direction and accurate assessment of total size and speed of eye movements to help separate out drifts and blinks. Our algorithm therefore expresses eye position in polar coordinates, uses low velocity thresholds and is free of direction ...
... Keratoconus Definition and Diagnosis Keratoconus is a non-inflammatory, progressive ectasia of the cornea. It is characterized by progressive thinning and steepening of the central cornea into a cone-like shape. As the cornea steepens and thins, the patient experiences a decrease in vision, which ca ...
Prescribing information
... with damage to the optic nerve, defects in visual acuity and fields of vision. If this product is used for 10 days or longer, IOP should be monitored. 5.2 Aminoglycoside sensitivity Sensitivity to topically applied aminoglycosides may occur. 5.3 Cataracts Use of corticosteroids may result in posteri ...
... with damage to the optic nerve, defects in visual acuity and fields of vision. If this product is used for 10 days or longer, IOP should be monitored. 5.2 Aminoglycoside sensitivity Sensitivity to topically applied aminoglycosides may occur. 5.3 Cataracts Use of corticosteroids may result in posteri ...
Form and Function-The CrystaLens HD_Results with the CrystaLens
... indicate that the Crystalens HD may in fact accommodate a little better after a YAG laser capsulotomy, because the movement comes from constriction of the capsule’s sides, not its center. To enhance near acuity, every 0.50 D of myopia adds one line. However, I never target more than -1.00 D with the ...
... indicate that the Crystalens HD may in fact accommodate a little better after a YAG laser capsulotomy, because the movement comes from constriction of the capsule’s sides, not its center. To enhance near acuity, every 0.50 D of myopia adds one line. However, I never target more than -1.00 D with the ...
Long-term Outcomes of Keratolimbal Allograft for Total Limbal Stem
... Although KLAL rejection is considered the major cause of failure,6 it only accounts for a part of reported cases.16,20 In fact, such risk factors as keratinization,21 symblepharon,16 inflammation,22 and dry eye23 have been implicated for KLAL failure. We wonder whether there are asyet-unknown clinic ...
... Although KLAL rejection is considered the major cause of failure,6 it only accounts for a part of reported cases.16,20 In fact, such risk factors as keratinization,21 symblepharon,16 inflammation,22 and dry eye23 have been implicated for KLAL failure. We wonder whether there are asyet-unknown clinic ...
relation of macular and other holes to the insertion of the inferior
... and the contraction of the inferior oblique muscle (el Massri, 1958). In about five out of nine cases, the hole is accompanied by a peripheral tear or an area of degeneration at about 7 to 8 o'clock in the right eye or 4 to 5 o'clock in the left. At operation the peripheral tears were seen to be sit ...
... and the contraction of the inferior oblique muscle (el Massri, 1958). In about five out of nine cases, the hole is accompanied by a peripheral tear or an area of degeneration at about 7 to 8 o'clock in the right eye or 4 to 5 o'clock in the left. At operation the peripheral tears were seen to be sit ...
Vestibular Contributions to Gaze Stability During Transient Forward
... on the retina. In addition, almost all previous studies have concentrated on small sinusoidal perturbations, requiring small eye movements to keep images stable on the fovea. Using such velocity analysis during high-frequency sinusoidal movements, it was found that although version (i.e., conjugate) ...
... on the retina. In addition, almost all previous studies have concentrated on small sinusoidal perturbations, requiring small eye movements to keep images stable on the fovea. Using such velocity analysis during high-frequency sinusoidal movements, it was found that although version (i.e., conjugate) ...
Ocular Melanoma
... liver. Patients with a high risk of tumour spread should receive 6 monthly liver imaging. There is no consensus about what form this should take; however, evidence suggests that MRI can detect liver lesions earlier. This may allow for the liver tumour(s) to be removed surgically, resulting in prolon ...
... liver. Patients with a high risk of tumour spread should receive 6 monthly liver imaging. There is no consensus about what form this should take; however, evidence suggests that MRI can detect liver lesions earlier. This may allow for the liver tumour(s) to be removed surgically, resulting in prolon ...
personal data - Dr Tamer O Gamaly
... • "LASIK with the Optimized Aspheric Transition Zone and Cross-cylinder Technique for the Treatment of Astigmatism From 1.00 to 4.25 Diopters”. Journal of Refractive Surgery, Oct 2009. • "A Prospective, Randomized, Contralateral Eye Comparison of Epithelial Laser in situ Keratomileusis and Photorefr ...
... • "LASIK with the Optimized Aspheric Transition Zone and Cross-cylinder Technique for the Treatment of Astigmatism From 1.00 to 4.25 Diopters”. Journal of Refractive Surgery, Oct 2009. • "A Prospective, Randomized, Contralateral Eye Comparison of Epithelial Laser in situ Keratomileusis and Photorefr ...
Thygeson`s Superficial Punctate Keratitis- Case Report
... anesthesia. Herpes zoster keratitis manifests mainly as cutaneous lesions distributed across the trigeminal nerve dermatomes with its classical presentation was also not considered. Other problems that produce superficial epithelial keratitis like posterior blepharitis, rosacea keratitis and drug in ...
... anesthesia. Herpes zoster keratitis manifests mainly as cutaneous lesions distributed across the trigeminal nerve dermatomes with its classical presentation was also not considered. Other problems that produce superficial epithelial keratitis like posterior blepharitis, rosacea keratitis and drug in ...
Large-scale integration in tablet screens for blue-light
... at night. Therefore, in the present study, we focused on whether innovative display technology could reduce eye fatigue and DED-related symptoms. We used two ocular examinations that can be performed by untrained participants at night in their bedroom. The first test, of functional visual acuity (FV ...
... at night. Therefore, in the present study, we focused on whether innovative display technology could reduce eye fatigue and DED-related symptoms. We used two ocular examinations that can be performed by untrained participants at night in their bedroom. The first test, of functional visual acuity (FV ...
WORLD COUNCIL OF OPTOMETRY
... 6. Assess the quality of the visual pathway and sensory visual function 7. Assess the refractive status 8. Assess the binocular and oculomotor (including near focus) function 9. Assess suitability of spectacles and prescribe 10. Assess contact lens-wear suitability and prescribe With an element rela ...
... 6. Assess the quality of the visual pathway and sensory visual function 7. Assess the refractive status 8. Assess the binocular and oculomotor (including near focus) function 9. Assess suitability of spectacles and prescribe 10. Assess contact lens-wear suitability and prescribe With an element rela ...
Ophthalmology - Mass. Eye and Ear
... diagnose and treat patients using the best available data. To accomplish this, they usually refer to randomized clinical trials in which carefully matched groups of patients are studied comparing an intervention, drug or surgery. Unfortunately, this level of data exists for very few medical decision ...
... diagnose and treat patients using the best available data. To accomplish this, they usually refer to randomized clinical trials in which carefully matched groups of patients are studied comparing an intervention, drug or surgery. Unfortunately, this level of data exists for very few medical decision ...
Tutorial: External Ocular Photography
... the top of the camera. This placement can cause ‘flash parallax’ (the area illuminated by the flash is different from the area the objective lens images), especially when focusing closely. Attaching the flash unit to the front of the lens is suggested for close focusing situations. The position of t ...
... the top of the camera. This placement can cause ‘flash parallax’ (the area illuminated by the flash is different from the area the objective lens images), especially when focusing closely. Attaching the flash unit to the front of the lens is suggested for close focusing situations. The position of t ...
B. Leray, M. Cassagne, V. Soler, E.A. Villegas, C. Triozon
... SL) can predict an optimal SA value for each patient. Design: Comparative, prospective clinical trial with paired eye control. Participants: Patients 45 years old who are hyperopic from þ1.00 to þ2.50 diopters (D), with eyes suitable for LASIK surgery. Intervention: Bilateral hyperopic LASIK surger ...
... SL) can predict an optimal SA value for each patient. Design: Comparative, prospective clinical trial with paired eye control. Participants: Patients 45 years old who are hyperopic from þ1.00 to þ2.50 diopters (D), with eyes suitable for LASIK surgery. Intervention: Bilateral hyperopic LASIK surger ...
ICCBBA Eye Banking Technical Advisory Group Ocular Tissue
... Corneal Graft Attribute values as this implied use of a microkeratome. This change generalizes the definitions; for example, for „Posterior layer‟ all preparation techniques for endothelial keratoplasty are now covered. ...
... Corneal Graft Attribute values as this implied use of a microkeratome. This change generalizes the definitions; for example, for „Posterior layer‟ all preparation techniques for endothelial keratoplasty are now covered. ...
Endotoxin Testing Recommendations for Single-Use Intraocular Ophthalmic Devices
... J. Anterior chamber: The space in the eye that is behind the cornea and in front of the iris. It contains aqueous humor. K. Posterior segment: The rear two-thirds of the eye located behind the lens. It includes the vitreous, retina, optic disc, choroid, pars plana, and most of the sclera. L. Posteri ...
... J. Anterior chamber: The space in the eye that is behind the cornea and in front of the iris. It contains aqueous humor. K. Posterior segment: The rear two-thirds of the eye located behind the lens. It includes the vitreous, retina, optic disc, choroid, pars plana, and most of the sclera. L. Posteri ...
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.