Correlation of Serial Scleral and Corneal Pneumatonometry
... model resulted in the following equation: corneal IOP ¼ 1.04 scleral IOP 10.37. Age, central corneal thickness, laterality, and glaucoma and lens status did not impact this relationship. The difference between corneal and scleral pneumotonometry was correlated between the two eyes of individual ...
... model resulted in the following equation: corneal IOP ¼ 1.04 scleral IOP 10.37. Age, central corneal thickness, laterality, and glaucoma and lens status did not impact this relationship. The difference between corneal and scleral pneumotonometry was correlated between the two eyes of individual ...
In vivo confocal microscopy of the human cornea
... images captured using the specular microscope. An endothelial cell nucleus (arrow) and guttae (arrowhead) are occasionally visible. Descemet‘s membrane cannot be visualised in normal young corneas at this resolution. In addition to the qualitative analysis of corneas imaged with confocal microscopy, ...
... images captured using the specular microscope. An endothelial cell nucleus (arrow) and guttae (arrowhead) are occasionally visible. Descemet‘s membrane cannot be visualised in normal young corneas at this resolution. In addition to the qualitative analysis of corneas imaged with confocal microscopy, ...
INFORMATION ABOUT ALBINISM What Is Albinism?
... least nine genes leading to HermanskyPudlak Syndrome (HPS). In addition to albinism, HPS is associated with bleeding problems and bruising. Some forms are also associated with lung and bowel disease. HPS is a less common form of albinism but should be suspected if a person with albinism shows unusua ...
... least nine genes leading to HermanskyPudlak Syndrome (HPS). In addition to albinism, HPS is associated with bleeding problems and bruising. Some forms are also associated with lung and bowel disease. HPS is a less common form of albinism but should be suspected if a person with albinism shows unusua ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... The rate of progression of myopia is highest in young children, and the average age of stabilization of myopia is approximately 16 years .The onset myopia may occur at a relatively young age, leading to higher risks of high myopia (myopia at least _6.0 diopters [D]) in adulthood. Various studies hav ...
... The rate of progression of myopia is highest in young children, and the average age of stabilization of myopia is approximately 16 years .The onset myopia may occur at a relatively young age, leading to higher risks of high myopia (myopia at least _6.0 diopters [D]) in adulthood. Various studies hav ...
Full paper
... AL-2000 pachymeter). The preoperative corneal curvature was measured using automated keratometry (Nidek ARK7000A). All patients had a slit lamp examination and the preoperative intra ocular pressure IOP was recorded (Haag Streit applanation tonometer), followed by posterior segment indirect ophthalm ...
... AL-2000 pachymeter). The preoperative corneal curvature was measured using automated keratometry (Nidek ARK7000A). All patients had a slit lamp examination and the preoperative intra ocular pressure IOP was recorded (Haag Streit applanation tonometer), followed by posterior segment indirect ophthalm ...
Forward and Inward Movement of the Ciliary Muscle Apex with
... ciliary muscle fibers are thicker in hyperopia.25 This was likely the first evidence suggesting that increased accommodative workload in hyperopia is associated with a thicker anterior region of the muscle, which is largely composed of circular and some radial fibers.25 This result was confirmed by ...
... ciliary muscle fibers are thicker in hyperopia.25 This was likely the first evidence suggesting that increased accommodative workload in hyperopia is associated with a thicker anterior region of the muscle, which is largely composed of circular and some radial fibers.25 This result was confirmed by ...
Effect of Hydration State and Storage Media on Corneal
... slaughterhouse (prior to scalding) and used within 4 hours postmortem. The eyes were separated equally into five groups and treated with different medical solutions (Table 1). In four groups, measurements were performed immediately and at 24 hours. In the OptisolGS group, measurements were performed ...
... slaughterhouse (prior to scalding) and used within 4 hours postmortem. The eyes were separated equally into five groups and treated with different medical solutions (Table 1). In four groups, measurements were performed immediately and at 24 hours. In the OptisolGS group, measurements were performed ...
- College of Optometrists
... a new operation for the cure of that disease; on the modes of forming an artificial pupil, and on cataract. J Brettell for J Callow, London 1812 252p ill. The author describes how to create a normal eyelid using a knife of his own design to remove an angular part of the lid, and describes a method o ...
... a new operation for the cure of that disease; on the modes of forming an artificial pupil, and on cataract. J Brettell for J Callow, London 1812 252p ill. The author describes how to create a normal eyelid using a knife of his own design to remove an angular part of the lid, and describes a method o ...
Letter to John Oliver - LASIK Complications, Risks
... can also lead to bad outcomes” as stated by the FDA at the 1:50 mark of the FDA video. Large pupil size is a known contra indicator for Lasik Yet the FDA, through pressure from the Lasik industry, has refused to include large pupil size as a contra indicator for Lasik in the patient labeling for ove ...
... can also lead to bad outcomes” as stated by the FDA at the 1:50 mark of the FDA video. Large pupil size is a known contra indicator for Lasik Yet the FDA, through pressure from the Lasik industry, has refused to include large pupil size as a contra indicator for Lasik in the patient labeling for ove ...
Vitreous: From Biochemistry to Clinical Relevance
... supramolecular structure of vitreous gel. Aggregates of type VI collagen have been found in the cortical vitreous of a patient with macular hole,43 but it is not clear whether this plays any role at all in the pathogenesis of this condition. GLYCOSAMINOGLYCANS GAGs are polysaccharides of repeating d ...
... supramolecular structure of vitreous gel. Aggregates of type VI collagen have been found in the cortical vitreous of a patient with macular hole,43 but it is not clear whether this plays any role at all in the pathogenesis of this condition. GLYCOSAMINOGLYCANS GAGs are polysaccharides of repeating d ...
Proprioceptive and Retinal Afference Modify Postsaccadic Ocular Drift
... proprioceptive afference in the control of postsaccadic drift: disconjugate adaptation of postsaccadic drift does not require binocular fusion; slow, postsaccadic drift movements that reduce retinal disparity but concurrently increase retinal slip can be induced in the binocular viewing state; posts ...
... proprioceptive afference in the control of postsaccadic drift: disconjugate adaptation of postsaccadic drift does not require binocular fusion; slow, postsaccadic drift movements that reduce retinal disparity but concurrently increase retinal slip can be induced in the binocular viewing state; posts ...
Central Corneal Thickness
... thickness measured by calibrated CCM was statistically lower than with ultrasonic pachymetry measurements.1 Javaloy et al3 found similar corneal thickness values with conventional ultrasound, scanning-slit corneal topography, and CCM. Different results may depend on the use of 2 different corneal co ...
... thickness measured by calibrated CCM was statistically lower than with ultrasonic pachymetry measurements.1 Javaloy et al3 found similar corneal thickness values with conventional ultrasound, scanning-slit corneal topography, and CCM. Different results may depend on the use of 2 different corneal co ...
Collagen Corneal Shields
... Collagen was initially used in third-degree skin burns to enhance epithelial healing by preventing desiccation, providing a mechanical and bacterial defense, and reducing discomfort.13,64 Corneal collagen shields may have a similar role in corneal wound healing. Animal models with corneal epithelial ...
... Collagen was initially used in third-degree skin burns to enhance epithelial healing by preventing desiccation, providing a mechanical and bacterial defense, and reducing discomfort.13,64 Corneal collagen shields may have a similar role in corneal wound healing. Animal models with corneal epithelial ...
Cornea and Glaucoma
... The cornea, the primary refractive ocular structure that contributes to focusing the external images on the retina, measures 11 to 12 mm horizontally, 10 to 11 mm vertically, and is about 0.5 mm thick centrally. The corneal thickness increases gradually toward the periph‐ ery to about 0.7 mm. Cornea ...
... The cornea, the primary refractive ocular structure that contributes to focusing the external images on the retina, measures 11 to 12 mm horizontally, 10 to 11 mm vertically, and is about 0.5 mm thick centrally. The corneal thickness increases gradually toward the periph‐ ery to about 0.7 mm. Cornea ...
Reduced toxicity of liposome-associated amphotericin B injected
... eyes were enucleated because of severe fungal infection. 5 Subconjunctival injection of amphotericin B penetrates the ocular humors of rabbits very poorly4 and is prone to produce severe local tissue reactions.6 Direct intravitreal injection of amphotericin B is attractive because it produces high c ...
... eyes were enucleated because of severe fungal infection. 5 Subconjunctival injection of amphotericin B penetrates the ocular humors of rabbits very poorly4 and is prone to produce severe local tissue reactions.6 Direct intravitreal injection of amphotericin B is attractive because it produces high c ...
Jaypee Gold Standard Mini Atlas Series
... eliminate defocus errors and astigmatism. These are the only optical aberrations that can be handled by the simplest theory of imaging, known as paraxial optics, which excludes all light rays finitely distant from a central ray or power axis. Ignoring the majority of rays entering the pupil, paraxia ...
... eliminate defocus errors and astigmatism. These are the only optical aberrations that can be handled by the simplest theory of imaging, known as paraxial optics, which excludes all light rays finitely distant from a central ray or power axis. Ignoring the majority of rays entering the pupil, paraxia ...
form 3s. “dear caregiver” letter (spanish)
... 7. The neonatologist and ROPC/NICU nurse will educate the caregivers on an ongoing basis a. Inform the caregiver of the need for an eye exam b. Explain the ROP disease process with its risk of blindness c. Provide a copy of the “Dear Caregivers” Letter after the infant’s first ROP exam and upon disc ...
... 7. The neonatologist and ROPC/NICU nurse will educate the caregivers on an ongoing basis a. Inform the caregiver of the need for an eye exam b. Explain the ROP disease process with its risk of blindness c. Provide a copy of the “Dear Caregivers” Letter after the infant’s first ROP exam and upon disc ...
Visual Psychophysics / Physiological Optics
... promising solution for the correction of presbyopia. We used custom spectral Optical Coherence Tomography (sOCT) to fully image and quantify in 3D the anterior segment of the eye in patients implanted with A-IOLs designed to move axially inside the eye. Methods: Custom sOCT provided with quantificat ...
... promising solution for the correction of presbyopia. We used custom spectral Optical Coherence Tomography (sOCT) to fully image and quantify in 3D the anterior segment of the eye in patients implanted with A-IOLs designed to move axially inside the eye. Methods: Custom sOCT provided with quantificat ...
IOSR Journal of Dental and Medical Sciences (IOSR-JDMS)
... Mean follow-up period of our cases was 48 weeks ranged 24 weeks to 82 weeks. Though most of the pterygium recurrences occur during the first 6 months after surgery x, it is desirable to have a minimum 1 year follow up. 21 Visual acuity was maintained at pre-operative values in all patients. No major ...
... Mean follow-up period of our cases was 48 weeks ranged 24 weeks to 82 weeks. Though most of the pterygium recurrences occur during the first 6 months after surgery x, it is desirable to have a minimum 1 year follow up. 21 Visual acuity was maintained at pre-operative values in all patients. No major ...
Corneal ulceration, measles, and childhood blindness
... of bilateral ulceration, subsequent blindness, and mortality in this series. Other significant causes of childhood corneal ulceration were the use of traditional eye medicines, confluent measles keratitis, and ophthalmia neonatorum. We discuss the various mechanisms by which measles causes corneal u ...
... of bilateral ulceration, subsequent blindness, and mortality in this series. Other significant causes of childhood corneal ulceration were the use of traditional eye medicines, confluent measles keratitis, and ophthalmia neonatorum. We discuss the various mechanisms by which measles causes corneal u ...
Opposite Effects of Glucagon and Insulin on Compensation for
... promotes cell proliferation and differentiation throughout the body15 and has a high degree of homology with insulin.16 The receptors for IGF-1 and insulin are also similar,17 resulting in the cross-reaction of insulin and IGF-1 with the receptors for each other.18 In the present study, we ask which ...
... promotes cell proliferation and differentiation throughout the body15 and has a high degree of homology with insulin.16 The receptors for IGF-1 and insulin are also similar,17 resulting in the cross-reaction of insulin and IGF-1 with the receptors for each other.18 In the present study, we ask which ...
Complete Thesis - Visual Optics and Biophotonics Lab
... objects at near distance. While accommodative lenses are the ideal solutions for presbyopia, current optical solutions rely on providing an acceptable quality of vision at near and far distances. Optimization of the optical solutions rely on better understanding of how the visual system copes with t ...
... objects at near distance. While accommodative lenses are the ideal solutions for presbyopia, current optical solutions rely on providing an acceptable quality of vision at near and far distances. Optimization of the optical solutions rely on better understanding of how the visual system copes with t ...
corneal Elevation Values in normal Eyes, forme fruste Keratoconus
... forme fruste keratoconus (FFKC) and different stages of keratoconus using Scheimpflug imaging. Materials and methods: This prospective, comparative study included 267 eyes (107 normal eyes, 21 FFKC and 139 keratoconus). Keratoconic eyes were divided into four groups according to keratometry values. ...
... forme fruste keratoconus (FFKC) and different stages of keratoconus using Scheimpflug imaging. Materials and methods: This prospective, comparative study included 267 eyes (107 normal eyes, 21 FFKC and 139 keratoconus). Keratoconic eyes were divided into four groups according to keratometry values. ...
- Ophthalmology
... underwent surface ablation without MMC and compared them retrospectively with 83 eyes that received 0.02 mg/ ml (0.002%) MMC during laser-assisted subepithelial keratectomy (LASEK). Eyes treated with low-dose MMC (0.002%) demonstrated statistically less haze at all postoperative time points and in e ...
... underwent surface ablation without MMC and compared them retrospectively with 83 eyes that received 0.02 mg/ ml (0.002%) MMC during laser-assisted subepithelial keratectomy (LASEK). Eyes treated with low-dose MMC (0.002%) demonstrated statistically less haze at all postoperative time points and in e ...
Corneal Transplant, Endothelial Keratoplasty
... endothelial keratoplasty (FELEK). These techniques include some donor stroma along with the endothelium and Descemet’s membrane, which results in a thickened stromal layer after transplantation. If the donor tissue comprises Descemet’s membrane and endothelium alone, the technique is known as Descem ...
... endothelial keratoplasty (FELEK). These techniques include some donor stroma along with the endothelium and Descemet’s membrane, which results in a thickened stromal layer after transplantation. If the donor tissue comprises Descemet’s membrane and endothelium alone, the technique is known as Descem ...
Cataract
A cataract is a clouding of the lens in the eye leading to a decrease in vision. It can affect one or both eyes. Often it develops slowly. Symptoms may include faded colors, blurry vision, halos around light, trouble with bright lights, and trouble seeing at night. This may result in trouble driving, reading, or recognizing faces. Poor vision may also result in an increased risk of falling and depression. Cataracts are the cause of half of blindness and 33% of visual impairment worldwide.Cataracts are most commonly due to aging, but may also occur due to trauma, radiation exposure, be present from birth, or occur following eye surgery for other problems. Risk factors include diabetes, smoking tobacco, prolonged exposure to sunlight, and alcohol. Either clumps of protein or yellow-brown pigment may be deposited in the lens reducing the transmission of light to the retina at the back of the eye. Diagnosis is by an eye examination.Prevention includes wearing sunglasses and not smoking. Early on the symptoms may be improved with eyeglasses. If this does not help, surgery to remove the cloudy lens and replace it with an artificial lens is the only effective treatment. Surgery is only needed if the cataracts are causing problems. Surgery generally results in an improved quality of life. Cataract surgery is not easily available in many countries, which is especially true of women.About 20 million people globally are blind due to cataracts. It is the cause of about 5% of blindness in the United States and nearly 60% of blindness in parts of Africa and South America. Blindness from cataracts occurs in about 10 to 40 per 100,000 children in the developing world and 1 to 4 per 100,000 children in the developed world. Cataracts become more common with age. About half the people in the United States have had cataracts by the age of 80.