INFORMED CONSENT FOR REFRACTIVE LENS EXCHANGE (RLE
... excimer laser to remove tissue from the exposed tissue on the corneal surface. Both procedures have been found to be quite successful and relatively safe for the correction of moderate and high myopia up to about –12.00 D. Above 12 diopters, LASIK and PRK are less accurate and cause a high incidence ...
... excimer laser to remove tissue from the exposed tissue on the corneal surface. Both procedures have been found to be quite successful and relatively safe for the correction of moderate and high myopia up to about –12.00 D. Above 12 diopters, LASIK and PRK are less accurate and cause a high incidence ...
Design and Clinical Evaluation of a Handheld Wavefront Autorefractor
... the spherical power, S, cylinder power, C, and the axis, A. The six parameters (three for each eye) obtained with an autorefractor are often used as a starting point for subjective refraction (SR) and to reduce the overall time required of an examiner to obtain an eyeglass prescription. Standard aut ...
... the spherical power, S, cylinder power, C, and the axis, A. The six parameters (three for each eye) obtained with an autorefractor are often used as a starting point for subjective refraction (SR) and to reduce the overall time required of an examiner to obtain an eyeglass prescription. Standard aut ...
Refractive Surgery
... outer space and to track satellites, custom LASIK was born. The information obtained from our wavescan machine and measurements taken during your exam are used to personalize your laser vision correction. Using computercontrolled accuracy your cornea is reshaped to achieve your best personal vision. ...
... outer space and to track satellites, custom LASIK was born. The information obtained from our wavescan machine and measurements taken during your exam are used to personalize your laser vision correction. Using computercontrolled accuracy your cornea is reshaped to achieve your best personal vision. ...
Degenerative changes in cornea
... It is the most common peripheral corneal opacity, frequently occur with predisposing systemic conditions in elderly individuals,occusionaly arcus associated with familial or non familial dyslipoprotaneamia,it is most frequently bilateral ,unilateral condition is rare and my occur in association with ...
... It is the most common peripheral corneal opacity, frequently occur with predisposing systemic conditions in elderly individuals,occusionaly arcus associated with familial or non familial dyslipoprotaneamia,it is most frequently bilateral ,unilateral condition is rare and my occur in association with ...
Effect of excimer laser repetition rate on outcomes after
... platforms with topography and wavefront analyzer systems,3 and an increased repetition rate.4 Photorefractive keratectomy (PRK) was the first widely used refractive procedure. Although alternatives such as laser in situ keratomileusis (LASIK) have been introduced,5,6 PRK remains an excellent option ...
... platforms with topography and wavefront analyzer systems,3 and an increased repetition rate.4 Photorefractive keratectomy (PRK) was the first widely used refractive procedure. Although alternatives such as laser in situ keratomileusis (LASIK) have been introduced,5,6 PRK remains an excellent option ...
Custom LASIK Used to Enhance Older PRK
... previous PRK surgery. Other surgical options would have included another surface ablation procedure (PRK or LASEK), which would carry a significant risk of scar and haze formation and also may not have had the accuracy of using LASIK in this setting. Furthermore, epithelial removal during repeat PRK ...
... previous PRK surgery. Other surgical options would have included another surface ablation procedure (PRK or LASEK), which would carry a significant risk of scar and haze formation and also may not have had the accuracy of using LASIK in this setting. Furthermore, epithelial removal during repeat PRK ...
Custom LASIK used to enhance older PRK
... previous PRK surgery. Other surgical options would have included another surface ablation procedure (PRK or LASEK), which would carry a significant risk of scar and haze formation and also may not have had the accuracy of using LASIK in this setting. Furthermore, epithelial removal during repeat PRK ...
... previous PRK surgery. Other surgical options would have included another surface ablation procedure (PRK or LASEK), which would carry a significant risk of scar and haze formation and also may not have had the accuracy of using LASIK in this setting. Furthermore, epithelial removal during repeat PRK ...
Understanding Corneal Blindness Handout
... Epithelial swelling damages vision by changing the cornea's normal curvature, and causing a sightimpairing haze to appear in the tissue. Epithelial swelling will also produce tiny blisters on the corneal surface. When these blisters burst, they are extremely painful. Keratoconus. This disorder--a pr ...
... Epithelial swelling damages vision by changing the cornea's normal curvature, and causing a sightimpairing haze to appear in the tissue. Epithelial swelling will also produce tiny blisters on the corneal surface. When these blisters burst, they are extremely painful. Keratoconus. This disorder--a pr ...
Understanding Corneal Blindness
... vision and may require a corneal transplant. Fuchs' Dystrophy. Fuchs' Dystrophy occurs when endothelial cells gradually deteriorate without any apparent reason. As more endothelial cells are lost over the years, the endothelium becomes less efficient at pumping water out of the stroma (the middle la ...
... vision and may require a corneal transplant. Fuchs' Dystrophy. Fuchs' Dystrophy occurs when endothelial cells gradually deteriorate without any apparent reason. As more endothelial cells are lost over the years, the endothelium becomes less efficient at pumping water out of the stroma (the middle la ...
4314 - B775 4315 - B776 4316 - B777 4317 - B778 4318
... Purpose: In previous work (ARVO 2001, 2002, 2003) we have reported that among individual infants and young children, there is substantial variation in the development of both spatial vision (visual acuity, contrast sensitivity) and refractive error. However, despite significant scientific and clinical ...
... Purpose: In previous work (ARVO 2001, 2002, 2003) we have reported that among individual infants and young children, there is substantial variation in the development of both spatial vision (visual acuity, contrast sensitivity) and refractive error. However, despite significant scientific and clinical ...
Cryotherapy for retinopathy of prematurity a prospective study
... with normal posterior poles and a poorer outcome in eyes with cicatricial disease, although some maintain at least navigational vision. The effect of cryotherapy on the final refractive error also needs to be determined by long-term follow-up. It has been suggested that cryotherapy may increase myop ...
... with normal posterior poles and a poorer outcome in eyes with cicatricial disease, although some maintain at least navigational vision. The effect of cryotherapy on the final refractive error also needs to be determined by long-term follow-up. It has been suggested that cryotherapy may increase myop ...
Long-term Outcomes of Photorefractive Keratectomy for
... to spectacle correction if the anisometropia is severe because of resultant aniseikonia and diplopia caused by refractive correction. A human can tolerate only about 5% to 6% aniseikonia, which occurs with 2 to 3 diopters (D) of anisometropia, after which the image disparity is intolerable.1 Further ...
... to spectacle correction if the anisometropia is severe because of resultant aniseikonia and diplopia caused by refractive correction. A human can tolerate only about 5% to 6% aniseikonia, which occurs with 2 to 3 diopters (D) of anisometropia, after which the image disparity is intolerable.1 Further ...
this PDF file - International Journal of Research in
... tetrahydrofolate reductase (MTHFR) (type II and III). The disease inherited is autosomal recessive pattern. Other ocular abnormalities are ectopia lentis, cataract, severe myopia, iridodonesis, glaucoma, retinal degeneration, retinal detachment and corneal abnormalities.3-5 By certain period, miscel ...
... tetrahydrofolate reductase (MTHFR) (type II and III). The disease inherited is autosomal recessive pattern. Other ocular abnormalities are ectopia lentis, cataract, severe myopia, iridodonesis, glaucoma, retinal degeneration, retinal detachment and corneal abnormalities.3-5 By certain period, miscel ...
Refractive eye disorders
... Astigmatism occurs when an optical component is steeper in one meridian, resulting in greater refractive power in one axis. In most cases astigmatism arises from the cornea, but it can also be due to the lens or even tilting of the retina. A simple explanation for corneal astigmatism is that the cor ...
... Astigmatism occurs when an optical component is steeper in one meridian, resulting in greater refractive power in one axis. In most cases astigmatism arises from the cornea, but it can also be due to the lens or even tilting of the retina. A simple explanation for corneal astigmatism is that the cor ...
University of Bradford
... Dr Catharine Chisholm, Lecturer, Registered Optometrist Dr Matthew Cufflin, Lecturer, Registered Optometrist ...
... Dr Catharine Chisholm, Lecturer, Registered Optometrist Dr Matthew Cufflin, Lecturer, Registered Optometrist ...
Eye, Cornea – Edema
... Figure Legend: Figure 1 Eye, Cornea - Edema in a female F344/N rat from a chronic study. Corneal edema (asterisk) is characterized by marked thickening of the corneal stroma due to accumulation of eosinophilic proteinaceous fluid. Figure 2 Eye, Cornea - Normal in a control female F344/N rat from a c ...
... Figure Legend: Figure 1 Eye, Cornea - Edema in a female F344/N rat from a chronic study. Corneal edema (asterisk) is characterized by marked thickening of the corneal stroma due to accumulation of eosinophilic proteinaceous fluid. Figure 2 Eye, Cornea - Normal in a control female F344/N rat from a c ...
Strabismus (Squint)
... Treatment: bilateral medial rectus recession as soon as possible, but we have to check for refractive errors (and correct any if found) and to do fundoscopy to exclude retinal diseases as we do in all types of squint prior to surgery. ...
... Treatment: bilateral medial rectus recession as soon as possible, but we have to check for refractive errors (and correct any if found) and to do fundoscopy to exclude retinal diseases as we do in all types of squint prior to surgery. ...
Effect of bright light on the transient changes of choroidal thickness
... it is attributed to an increase in the eye’s axial length, which is the major type in school myopia. ...
... it is attributed to an increase in the eye’s axial length, which is the major type in school myopia. ...
Late Onset Flap Scarring After Laser in Situ Keratomileusis
... leaving the central corneal zone clear after LASIK [8]. Similar results have been described in human eyes [9, 10]. The epithelium and Bowman’s layer are not affected at the center of cornea, so, therefore, leads to clear visual axis. Late onset significant haze and scarring in the flap were observed ...
... leaving the central corneal zone clear after LASIK [8]. Similar results have been described in human eyes [9, 10]. The epithelium and Bowman’s layer are not affected at the center of cornea, so, therefore, leads to clear visual axis. Late onset significant haze and scarring in the flap were observed ...
Path Chapter 29 p1346-1357 [4-20
... o Morgagnian cataract – when the lens cortex almost entirely liquefies This can cause high molecular weight proteins to leak through the lens capsule, called phacolysis, and then clog the trabecular meshwork, increasing intraocular pressure (glaucoma) and possible hurting the optic nerve Glaucoma ...
... o Morgagnian cataract – when the lens cortex almost entirely liquefies This can cause high molecular weight proteins to leak through the lens capsule, called phacolysis, and then clog the trabecular meshwork, increasing intraocular pressure (glaucoma) and possible hurting the optic nerve Glaucoma ...
PDF - Digital Journal of Ophthalmology
... improvement (see Table 1 for visual and keratometric results), but the patient still experienced variable visual acuity. Post-ICRS topography is shown in Figure 2. As a result of these concerns, 10 months after ICRS insertion, the ectatic left cornea was treated with combined ultraviolet radiation a ...
... improvement (see Table 1 for visual and keratometric results), but the patient still experienced variable visual acuity. Post-ICRS topography is shown in Figure 2. As a result of these concerns, 10 months after ICRS insertion, the ectatic left cornea was treated with combined ultraviolet radiation a ...
Rate of Cataract Formation in 343 Highly Myopic Eyes
... for high myopia, it is unknown whether cataract formation is related to the PIOL itself, to the intraocular procedure, or to high myopia. Cataract development is four times more frequent in those with high myopia than in the general population.12 Hoffer16 in 1980 and more recently Colin17 contended ...
... for high myopia, it is unknown whether cataract formation is related to the PIOL itself, to the intraocular procedure, or to high myopia. Cataract development is four times more frequent in those with high myopia than in the general population.12 Hoffer16 in 1980 and more recently Colin17 contended ...
corneal transplantation
... Corneal transplantation or corneal grafting or keratoplasty involves removal of diseased or damaged cornea and its replacement by donated corneal tissue. Deceased individuals with no known corneal diseases can donate their corneas within 6-8 hours of their demise. ...
... Corneal transplantation or corneal grafting or keratoplasty involves removal of diseased or damaged cornea and its replacement by donated corneal tissue. Deceased individuals with no known corneal diseases can donate their corneas within 6-8 hours of their demise. ...
Print this article - African Vision and Eye Health
... glaucomatous field losses, would be further compromised during the period of increased intra-ocular pressure induced by the suction ring during the LASIK procedure1, 11, 16. Therefore, patients with this condition cannot be considered for LASIK. ...
... glaucomatous field losses, would be further compromised during the period of increased intra-ocular pressure induced by the suction ring during the LASIK procedure1, 11, 16. Therefore, patients with this condition cannot be considered for LASIK. ...
17th World Congress on Ergonomics
... myopic group was 15.0 cm±1.9 cm, which was significantly shorter than those of the emmetropic group (30.2 cm±4.1 cm). The shorter viewing distance implied poorer vision and a larger extent of deterioration of ocular accommodation. Neck angle, viewing angle, visual acuity, near point, and accommodati ...
... myopic group was 15.0 cm±1.9 cm, which was significantly shorter than those of the emmetropic group (30.2 cm±4.1 cm). The shorter viewing distance implied poorer vision and a larger extent of deterioration of ocular accommodation. Neck angle, viewing angle, visual acuity, near point, and accommodati ...