Nocturnal elevation of intraocular pressure in young adults.
... from the volunteers after explanation of the nature and possible consequences of the study. Volunteers were nonsmoking, healthy people aged 18 to 25 years (15 men and 18 women) and racially diverse (23 white, 5 Hispanic, and 5 Asian). Each volunteer underwent a complete ophthalmic examination to ens ...
... from the volunteers after explanation of the nature and possible consequences of the study. Volunteers were nonsmoking, healthy people aged 18 to 25 years (15 men and 18 women) and racially diverse (23 white, 5 Hispanic, and 5 Asian). Each volunteer underwent a complete ophthalmic examination to ens ...
Vitreous: From Biochemistry to Clinical Relevance
... An important property of HA is that of steric exclusion.61 With its flexible linear chains and random coil conformation, HA occupies a large volume and resists the penetration of this volume by other molecules to a degree dependent upon their size and shape.53 This excluded volume effect can influen ...
... An important property of HA is that of steric exclusion.61 With its flexible linear chains and random coil conformation, HA occupies a large volume and resists the penetration of this volume by other molecules to a degree dependent upon their size and shape.53 This excluded volume effect can influen ...
Clinical Decision Making V: Intraocular Pressure and Tonometry
... Due to a lack of obvious early symptoms, about 50% of people with glaucoma are actually unaware that they are have the condition.4,5 Even to a trained eye, considerable irreversible damage to the retinal nerve fibre layer is likely to have occurred before visual field loss is detectable (about 40% l ...
... Due to a lack of obvious early symptoms, about 50% of people with glaucoma are actually unaware that they are have the condition.4,5 Even to a trained eye, considerable irreversible damage to the retinal nerve fibre layer is likely to have occurred before visual field loss is detectable (about 40% l ...
Retinal Telescreening for Diabetic Retinopathy
... Diabetic Retinopathy Screening There is potential for value in diabetic retinopathy screening because diabetic retinopathy has few visual or ocular symptoms until vision loss develops. With early detection, diabetic retinopathy can be treated with modalities that can decrease the risk of severe visi ...
... Diabetic Retinopathy Screening There is potential for value in diabetic retinopathy screening because diabetic retinopathy has few visual or ocular symptoms until vision loss develops. With early detection, diabetic retinopathy can be treated with modalities that can decrease the risk of severe visi ...
Jaypee Gold Standard Mini Atlas Series
... diopters”. The keratometric diopter is strictly defined as a geometric unit of curvature with no optical significance. One inverse millimeter equals to 337.5 keratometric diopters. In the Orbscan, the calibrated slit, which falls on the cornea, gives a topographical information, which is captured an ...
... diopters”. The keratometric diopter is strictly defined as a geometric unit of curvature with no optical significance. One inverse millimeter equals to 337.5 keratometric diopters. In the Orbscan, the calibrated slit, which falls on the cornea, gives a topographical information, which is captured an ...
Conjunctivitis A Systematic Review of Diagnosis and Treatment
... strongly predicted bacterial conjunctivitis. Having both eyes matter and the lids adhere in the morning was a stronger predictor for positive bacterial culture result, and either itching or a previous episode of conjunctivitis made a positive bacterial culture result less likely.64 In addition, type ...
... strongly predicted bacterial conjunctivitis. Having both eyes matter and the lids adhere in the morning was a stronger predictor for positive bacterial culture result, and either itching or a previous episode of conjunctivitis made a positive bacterial culture result less likely.64 In addition, type ...
Strabismus: Esotropia and Exotropia
... Optometrists provide more than two-thirds of the primary eye care services in the United States. They are more widely distributed geographically than other eye care providers and are readily accessible for the delivery of eye and vision care services. There are approximately 36,000 full-time equival ...
... Optometrists provide more than two-thirds of the primary eye care services in the United States. They are more widely distributed geographically than other eye care providers and are readily accessible for the delivery of eye and vision care services. There are approximately 36,000 full-time equival ...
The conjunctiva in corneal epithelial wound healing
... that goblet cells do not migrate onto the cornea but develop de novo from non-goblet epithelial cells which can be identified by electron microscopy. Loss of goblet cells during transdiVerentiation occurs by desquamation and in situ cell death.14 Vitamin A and vascularisation of regenerated epitheli ...
... that goblet cells do not migrate onto the cornea but develop de novo from non-goblet epithelial cells which can be identified by electron microscopy. Loss of goblet cells during transdiVerentiation occurs by desquamation and in situ cell death.14 Vitamin A and vascularisation of regenerated epitheli ...
Care of the Patient with Strabismus: Esotropia and Exotropia
... Some types of strabismus, particularly those caused by high refractive errors, can be prevented. Esotropias that occur due to an abnormal amount of hyperopia are potentially preventable if the hyperopia is treated prior to the onset of the deviation. More than 30 percent of children with hyperopia t ...
... Some types of strabismus, particularly those caused by high refractive errors, can be prevented. Esotropias that occur due to an abnormal amount of hyperopia are potentially preventable if the hyperopia is treated prior to the onset of the deviation. More than 30 percent of children with hyperopia t ...
Light, dark, and melatonin: emerging evidence for the
... with peak serum levels occurring between 2 AM and 4 AM. Eventually, in old age, this prominent night-time peak becomes markedly attenuated.18 Light control of pineal melatonin secretion It has been suspected for some time that different photoreceptors subserve sight and melatonin production. Thus, s ...
... with peak serum levels occurring between 2 AM and 4 AM. Eventually, in old age, this prominent night-time peak becomes markedly attenuated.18 Light control of pineal melatonin secretion It has been suspected for some time that different photoreceptors subserve sight and melatonin production. Thus, s ...
Presentación de PowerPoint
... • Diminishment of VA in conditions of poor illumination that improves with contact lenses • Etiology: – Spherical aberration – Dark focus of the accomodation ...
... • Diminishment of VA in conditions of poor illumination that improves with contact lenses • Etiology: – Spherical aberration – Dark focus of the accomodation ...
Thesis - A. de Castro
... 4.2.4 Experimental measurements . . . . . . . . . . . . . . . 4.2.5 Optical Coherence Tomography system parameters . . 4.2.6 Optical Coherence Tomography images processing . . 4.2.7 Crystalline lens surfaces shape and thickness . . . . . . 4.2.8 Three-dimensional gradient refractive index reconstruc ...
... 4.2.4 Experimental measurements . . . . . . . . . . . . . . . 4.2.5 Optical Coherence Tomography system parameters . . 4.2.6 Optical Coherence Tomography images processing . . 4.2.7 Crystalline lens surfaces shape and thickness . . . . . . 4.2.8 Three-dimensional gradient refractive index reconstruc ...
Corneal Desiccation in Rigid Gas Permeable Contact Lens Wear
... which was used to produce the so called soft or hydrogel contact lenses. A new era started with the introduction of these hydrated lenses, which typically had a water content of 38%. Subsequent material improvements resulted in higher water content (up to 80%). Higher water content materials (given ...
... which was used to produce the so called soft or hydrogel contact lenses. A new era started with the introduction of these hydrated lenses, which typically had a water content of 38%. Subsequent material improvements resulted in higher water content (up to 80%). Higher water content materials (given ...
Thesis - UVaDOC - Universidad de Valladolid
... from Ray Tracing and Optical Coherence Tomography data 3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.1 Estimation of experimental errors . . . . . . . . . . . . . 3.2.2 Studied gradient ref ...
... from Ray Tracing and Optical Coherence Tomography data 3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2 Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2.1 Estimation of experimental errors . . . . . . . . . . . . . 3.2.2 Studied gradient ref ...