Automatic Detection of Non-cosmetic Soft Contact Lenses in Ocular Images
... contact lenses. The most commonly used taxonomy differentiates contact lenses based on the material used to manufacture them.4 Contact lenses are classified into two main groups in this respect: soft contact lenses and rigid gas permeable (RGP) contact lenses. Soft contact lenses are made of soft, f ...
... contact lenses. The most commonly used taxonomy differentiates contact lenses based on the material used to manufacture them.4 Contact lenses are classified into two main groups in this respect: soft contact lenses and rigid gas permeable (RGP) contact lenses. Soft contact lenses are made of soft, f ...
Patient Instruction Booklet
... products come in contact with your lenses. If sprays are used, close your eyes until the spray has settled. • Insert lenses before applying make-up and remove lenses before taking your make-up off. Make-up can become trapped under the lens and irritate or injure your eyes. • Do not use nail ...
... products come in contact with your lenses. If sprays are used, close your eyes until the spray has settled. • Insert lenses before applying make-up and remove lenses before taking your make-up off. Make-up can become trapped under the lens and irritate or injure your eyes. • Do not use nail ...
Volume change of the ocular lens during accommodation
... divided by 2. These compared values were less than 0.5% of each other (in this case there was no difference), so the half lens picture was kept for further study. If the error was larger than 0.5%, the half lens would be disregarded and a new half lens outline would be cut, until it fell within the ...
... divided by 2. These compared values were less than 0.5% of each other (in this case there was no difference), so the half lens picture was kept for further study. If the error was larger than 0.5%, the half lens would be disregarded and a new half lens outline would be cut, until it fell within the ...
the eyes in marfan syndrome
... Various types of nearsightedness can be corrected with glasses or contact lenses (special flat contacts may be required for proper correction). A thorough measurement of the refractive condition of a patient’s eyes (retinoscopy) is essential for adequate visual correction, and full correction is desi ...
... Various types of nearsightedness can be corrected with glasses or contact lenses (special flat contacts may be required for proper correction). A thorough measurement of the refractive condition of a patient’s eyes (retinoscopy) is essential for adequate visual correction, and full correction is desi ...
ChromaGenColour - Aaron Optometrists
... binocularly. Successful filters may produce increased brightness of the colour fringes; increased numbers of colour fringes seen, fluorescence of some colours or a ‘3D’ effect. To compare normal vision to enhanced vision the patient need only to shut the non dominant eye or remove the filter. Once t ...
... binocularly. Successful filters may produce increased brightness of the colour fringes; increased numbers of colour fringes seen, fluorescence of some colours or a ‘3D’ effect. To compare normal vision to enhanced vision the patient need only to shut the non dominant eye or remove the filter. Once t ...
the eyes have it! - David F. Chang, MD
... address conditions such as presbyobia—the inability to focus on things up close that afflicts people as they age. “Today we can help many of these patients by correcting one of the eyes to a reading prescription. The next horizon is to use custom LASIK to do bifocal reshaping of both corneas.” ...
... address conditions such as presbyobia—the inability to focus on things up close that afflicts people as they age. “Today we can help many of these patients by correcting one of the eyes to a reading prescription. The next horizon is to use custom LASIK to do bifocal reshaping of both corneas.” ...
the eyes have it! - fry eye associates
... as presbyobia—the inability to focus on things up close that afflicts people as they age. “Today we can help many of these patients by correcting one of the eyes to a reading prescription.The next horizon is to use custom LASIK to do bifocal reshaping of both corneas.” ...
... as presbyobia—the inability to focus on things up close that afflicts people as they age. “Today we can help many of these patients by correcting one of the eyes to a reading prescription.The next horizon is to use custom LASIK to do bifocal reshaping of both corneas.” ...
Visions Magazine 01 - Bausch + Lomb | See Better. Live Better.
... corneal staining is expected in the general population at any given time. Low level corneal staining is commonly observed in contact lens wearers during routine eye examinations. The application of topical dyes such as sodium fluorescein is one of the most simple and routinely used techniques used t ...
... corneal staining is expected in the general population at any given time. Low level corneal staining is commonly observed in contact lens wearers during routine eye examinations. The application of topical dyes such as sodium fluorescein is one of the most simple and routinely used techniques used t ...
Secondary Artisan–Verysise aphakic lens implantation
... This retrospective study comprised 16 eyes of 14 patients with ages ranging from 36 and 74 years, who had Artisan–Verysise aphakic IOL (Ophthec BV) implantation by the same surgeon (J.L.G.) between December 1997 and February 1999 at IMO, Instituto de Microcirugı́a Ocular, Barcelona, Spain. Eight eye ...
... This retrospective study comprised 16 eyes of 14 patients with ages ranging from 36 and 74 years, who had Artisan–Verysise aphakic IOL (Ophthec BV) implantation by the same surgeon (J.L.G.) between December 1997 and February 1999 at IMO, Instituto de Microcirugı́a Ocular, Barcelona, Spain. Eight eye ...
fitting guide - Blanchard Contact Lenses
... wide range of applications. Corneas with normal prolate profile, astigmatism, post grafts, as well as mild to moderately irregular corneas (nipple and oval keratoconus) will benefit from this proprietary geometry. Furthermore, the design serves as a platform from which the multifocal and oblate desi ...
... wide range of applications. Corneas with normal prolate profile, astigmatism, post grafts, as well as mild to moderately irregular corneas (nipple and oval keratoconus) will benefit from this proprietary geometry. Furthermore, the design serves as a platform from which the multifocal and oblate desi ...
The spectral transmission of ocular media suggests ultraviolet
... study. As all the visual pigments absorb significant amounts of UV radiation and the lens transmits in this part of the spectrum, the ferret is likely to perceive such short wavelengths. Therefore, if the UV-absorbing lens of humans is removed following cataract surgery or traumatic injury, and not ...
... study. As all the visual pigments absorb significant amounts of UV radiation and the lens transmits in this part of the spectrum, the ferret is likely to perceive such short wavelengths. Therefore, if the UV-absorbing lens of humans is removed following cataract surgery or traumatic injury, and not ...
PDF Edition - Review of Optometry
... Alcon has the largest market share of IOLs in the United States. The basic Alcon lens platform is based on the AcrySof IQ lens design. nm wavelength range (FDA Submission Data: AcrySof IQ lens, Alcon Surgical). The lens has a square edge design and an open loop “L” shaped haptic with no vault. In ad ...
... Alcon has the largest market share of IOLs in the United States. The basic Alcon lens platform is based on the AcrySof IQ lens design. nm wavelength range (FDA Submission Data: AcrySof IQ lens, Alcon Surgical). The lens has a square edge design and an open loop “L” shaped haptic with no vault. In ad ...
Purkinje imaging system to measure anterior segment scattering in
... and #8, respectively. In these experimental conditions, the amount of corneal haze is the only difference, which means these changes found in the measured POS are strictly due to the contribution of this induced scatter. For all eyes and within a CL, the values of k⬘ គ sat were always larger that th ...
... and #8, respectively. In these experimental conditions, the amount of corneal haze is the only difference, which means these changes found in the measured POS are strictly due to the contribution of this induced scatter. For all eyes and within a CL, the values of k⬘ គ sat were always larger that th ...
Microscopes
... aperture iris diaphragm provides better image resolution and contrast, and also increases the depth of focus. 15. View the specimen through the eyepieces using the 4X objective. There will be a tendency to "squint" with one eye. Do not do this as it may cause eye strain or headaches. Learn to work t ...
... aperture iris diaphragm provides better image resolution and contrast, and also increases the depth of focus. 15. View the specimen through the eyepieces using the 4X objective. There will be a tendency to "squint" with one eye. Do not do this as it may cause eye strain or headaches. Learn to work t ...
Management of persistent hyperplastic primary vitreous by pars
... Michels and Ryan (1975) reported two cases of PHPV among ioo vitrectomy cases although the operative technique and postoperative results were not specified. Michels and others (I975) have saidthat they prefer to use an incision at the limbus rather than at the pars plana in these microphthalmic eyes ...
... Michels and Ryan (1975) reported two cases of PHPV among ioo vitrectomy cases although the operative technique and postoperative results were not specified. Michels and others (I975) have saidthat they prefer to use an incision at the limbus rather than at the pars plana in these microphthalmic eyes ...
Temporary Relief of Pain and Improved Vision in
... lens, starting from the first time of wear. With some materials it happens faster than others, which have excellent features over a short wearing time. The recommended replacement frequency is the result of clinical studies with many patients, reflecting the various wearing ...
... lens, starting from the first time of wear. With some materials it happens faster than others, which have excellent features over a short wearing time. The recommended replacement frequency is the result of clinical studies with many patients, reflecting the various wearing ...
Morphological Changes in Patient Lens Epithelial Cells after
... This unique vesicle-like structure was not copy. The epithelial cells changed their shapes from cuboidal to spindle, accompanied by new detected in the present study, but it is of note basal lamina-like substances around them, and that lipid-like substances full of equal amounts the spindle-shaped c ...
... This unique vesicle-like structure was not copy. The epithelial cells changed their shapes from cuboidal to spindle, accompanied by new detected in the present study, but it is of note basal lamina-like substances around them, and that lipid-like substances full of equal amounts the spindle-shaped c ...
Slide 1
... creates nerve impulses that are transmitted to the brain for cortical processing. Purple in color in living individuals • Posterior portion is receptive and ends at the orra serrata • Anterior portion is nonreceptive ...
... creates nerve impulses that are transmitted to the brain for cortical processing. Purple in color in living individuals • Posterior portion is receptive and ends at the orra serrata • Anterior portion is nonreceptive ...
Patient Brochure - EVO+ Visian ICL
... The Visian ICL is designed for the correction of myopia in adults ranging from -0.5 D to -18.0 D with or without astigmatism up to 6.0 D and the correction of hyperopia in adults with hyperopia ranging from +0.5 D to +10.0 D with or without astigmatism up to 6.0 D. It is indicated for patients who a ...
... The Visian ICL is designed for the correction of myopia in adults ranging from -0.5 D to -18.0 D with or without astigmatism up to 6.0 D and the correction of hyperopia in adults with hyperopia ranging from +0.5 D to +10.0 D with or without astigmatism up to 6.0 D. It is indicated for patients who a ...
Keratoconus: Diagnosis, contact lens fitting and management
... Globus - largest diameter (>6mm); 75% of the cornea is effected. Spectacles Mild keratoconus can be corrected with spectacles. Retinoscopy is difficult; a normal subjective refraction is required. Monocular keratoconus is usually best dealt with using spectacle correction. In this group of patients, ...
... Globus - largest diameter (>6mm); 75% of the cornea is effected. Spectacles Mild keratoconus can be corrected with spectacles. Retinoscopy is difficult; a normal subjective refraction is required. Monocular keratoconus is usually best dealt with using spectacle correction. In this group of patients, ...
patient instruction guide
... Your contact lenses are made from a water loving (hydrophilic) material that has the ability to absorb water, making the lenses soft and flexible. The lenses are tinted to improve visibility for handling and also contain an ultraviolet (UV) radiation absorbing ingredient to block UV radiation. These ...
... Your contact lenses are made from a water loving (hydrophilic) material that has the ability to absorb water, making the lenses soft and flexible. The lenses are tinted to improve visibility for handling and also contain an ultraviolet (UV) radiation absorbing ingredient to block UV radiation. These ...
Patient Instruction Booklet, SynergEyes A and M Lens
... practitioner. If you use a hydrogen peroxide solution, be sure to allow it be neutralized as described in the instructions for the product. Cleaning and rinsing are necessary to remove mucus, secretions, films, or deposits which may have accumulated during wearing. The ideal time to clean your lense ...
... practitioner. If you use a hydrogen peroxide solution, be sure to allow it be neutralized as described in the instructions for the product. Cleaning and rinsing are necessary to remove mucus, secretions, films, or deposits which may have accumulated during wearing. The ideal time to clean your lense ...
Might myopic defocus prevent myopia?
... amount of sharply focused images—seems implausible. It is likely that the animal gets much more sharp vision from normal experience, either by viewing distant objects without accommodation or by viewing near objects with accommodation (chicks have 20 D of accommodation), than it does by wearing posi ...
... amount of sharply focused images—seems implausible. It is likely that the animal gets much more sharp vision from normal experience, either by viewing distant objects without accommodation or by viewing near objects with accommodation (chicks have 20 D of accommodation), than it does by wearing posi ...
Corrective lens
A corrective lens is a lens worn in front of the eye, mainly used to treat myopia, hyperopia, astigmatism, and presbyopia. Glasses or ""spectacles"" are worn on the face a short distance in front of the eye. Contact lenses are worn directly on the surface of the eye. Intraocular lenses are surgically implanted most commonly after cataract removal, but recently for purely refractive purposes. Myopia (near-sightedness) requires a divergent lens, whereas hyperopia (far-sightedness) requires convergent lens.