Category: Blade Free Lasik
... surgery, surgeons will treat the non-dominant eye, or the eye that doesn't do the work of focusing on objects, so that it sees up close, while the dominant eye sees distance. Your eyes may not adjust well, which is why your CK eye surgeon will test you with special contact lenses that produce the ef ...
... surgery, surgeons will treat the non-dominant eye, or the eye that doesn't do the work of focusing on objects, so that it sees up close, while the dominant eye sees distance. Your eyes may not adjust well, which is why your CK eye surgeon will test you with special contact lenses that produce the ef ...
Limbus versus pupil center for ocular alignment
... with computation of eye alignment from ratios of disexplaining to some extent the good results obtained tances—for instance, the ratio of corneal reflex diswith this approximation. placement to the width of the limbus.17'20 No calibraThe HR can be gained empirically (HR^pj,.) from tion for measureme ...
... with computation of eye alignment from ratios of disexplaining to some extent the good results obtained tances—for instance, the ratio of corneal reflex diswith this approximation. placement to the width of the limbus.17'20 No calibraThe HR can be gained empirically (HR^pj,.) from tion for measureme ...
to PDF of Visual and Anatomic Outcomes of Vitrectomy
... findings. Snellen best-corrected visual acuity (BCVA) was converted to logarithm of the minimum angle of resolution (LogMAR) visual acuity scores for statistical analysis. Eyes for which Snellen visual acuity could not be measured were assigned LogMAR scores according to a scale adapted from Hollada ...
... findings. Snellen best-corrected visual acuity (BCVA) was converted to logarithm of the minimum angle of resolution (LogMAR) visual acuity scores for statistical analysis. Eyes for which Snellen visual acuity could not be measured were assigned LogMAR scores according to a scale adapted from Hollada ...
VIEW PDF - Cataract & Refractive Surgery Today Europe
... Barrett Rx formula is also available online (Figure 5). This formula recommends the required IOL power for lens exchange, piggyback IOLs, or the rotation of an existing toric IOL to correct for an unexpected refractive outcome. ...
... Barrett Rx formula is also available online (Figure 5). This formula recommends the required IOL power for lens exchange, piggyback IOLs, or the rotation of an existing toric IOL to correct for an unexpected refractive outcome. ...
Injection of chemoattractants into normal cornea: a model of
... diameter, which was probably the consequence of fluid distortion of the lamellar orientation of the collagen fibrils. The disc of edema was positioned eccentrically so as to extend from the central cornea and to overlap the sclera by approximately 3 mm. A time response was constructed for corneas in ...
... diameter, which was probably the consequence of fluid distortion of the lamellar orientation of the collagen fibrils. The disc of edema was positioned eccentrically so as to extend from the central cornea and to overlap the sclera by approximately 3 mm. A time response was constructed for corneas in ...
A Clinical Study on Visual Outcome and Complications of
... Penetrating keratoplasty can visually rehabilitate many patients who have corneal blindness. But the prognosis depends on the pathology that has caused the corneal blindness. Of the30cases who underwent penetrating keratoplasty,16 (53.3%) were males and 14 (46.7%) were females. Most of the patients ...
... Penetrating keratoplasty can visually rehabilitate many patients who have corneal blindness. But the prognosis depends on the pathology that has caused the corneal blindness. Of the30cases who underwent penetrating keratoplasty,16 (53.3%) were males and 14 (46.7%) were females. Most of the patients ...
Endoscope-assisted vitrectomy Mihori Kita CITATION Kita M
... the vitreous hemorrhage or applying laser photocoagulation under the endoscope should be attempted. Until an ophthalmologist feels comfortable using the endoscope, endoscopes are more suitable for use in usual cases, where the endoscopes are not necessary to perform vitrectomies. Beginning to use an ...
... the vitreous hemorrhage or applying laser photocoagulation under the endoscope should be attempted. Until an ophthalmologist feels comfortable using the endoscope, endoscopes are more suitable for use in usual cases, where the endoscopes are not necessary to perform vitrectomies. Beginning to use an ...
Kymionis GD, Tsiklis N, Pallikaris AI, Diakonis V
... 0.03% drops (Ocuflur) 4 times daily for 2 days, dexamethasone 0.1%–tobramycin 0.3% drops (TobraDex) 4 times daily for 2 weeks, and sodium hyaluronate 0.18% drops (Vismed) hourly for 1 month. Follow-up Examinations Preoperative and postoperative follow-up included uncorrected visual acuity (UCVA) (Sn ...
... 0.03% drops (Ocuflur) 4 times daily for 2 days, dexamethasone 0.1%–tobramycin 0.3% drops (TobraDex) 4 times daily for 2 weeks, and sodium hyaluronate 0.18% drops (Vismed) hourly for 1 month. Follow-up Examinations Preoperative and postoperative follow-up included uncorrected visual acuity (UCVA) (Sn ...
MEASUREMENT OF THE REFRACTIVE STATE USING AUTOREFRACTOR IN DOGS
... The bending of light rays as they pass from one medium through another. Used to describe the action of the cornea and lens on light rays as they enter they eye. Also used to describe the determination and measurement of the eye's focusing system by an optometrist or ophthalmologist. ...
... The bending of light rays as they pass from one medium through another. Used to describe the action of the cornea and lens on light rays as they enter they eye. Also used to describe the determination and measurement of the eye's focusing system by an optometrist or ophthalmologist. ...
2.7 Follow-up
... Until now corneal pachymetry played a minor role in the post-operative control of the graft. Authors described that the thickness in the first postoperative days is followed by a decrease in thickness in the following months and a stabilizing thickness after 3-6 months.351,354 Corneal grafts with a ...
... Until now corneal pachymetry played a minor role in the post-operative control of the graft. Authors described that the thickness in the first postoperative days is followed by a decrease in thickness in the following months and a stabilizing thickness after 3-6 months.351,354 Corneal grafts with a ...
Clinical implications for the optometrist when assessing post LASIK
... wavefront guided ablation has, thus far, not been achieved45. For now, it is thus up to the optometrist assessing the post LASIK patient to determine the remediation before any retreatment is considered. Spectacles should be prescribed for any residual refractive error which can help optimize vision ...
... wavefront guided ablation has, thus far, not been achieved45. For now, it is thus up to the optometrist assessing the post LASIK patient to determine the remediation before any retreatment is considered. Spectacles should be prescribed for any residual refractive error which can help optimize vision ...
Correlation between epithelial thickness in normal
... systems are mainly contact (and thus require local corneal anesthesia), whereas B-scan systems involve scanning. The latter are advantageous over the former, which suffer from variability largely related to decentration, oblique incidence which may cause spuriously thicker measurements, possible cor ...
... systems are mainly contact (and thus require local corneal anesthesia), whereas B-scan systems involve scanning. The latter are advantageous over the former, which suffer from variability largely related to decentration, oblique incidence which may cause spuriously thicker measurements, possible cor ...
Malignant glaucoma
... Gentili (I964) demonstrated that hyperosmotic agents combined with mydriatic-cycloplegic therapy can produce beneficial effects not produced by either agent alone. They described two situations in which mydriatic-cycloplegic therapy and intravenous urea were each ineffective alone, but when they wer ...
... Gentili (I964) demonstrated that hyperosmotic agents combined with mydriatic-cycloplegic therapy can produce beneficial effects not produced by either agent alone. They described two situations in which mydriatic-cycloplegic therapy and intravenous urea were each ineffective alone, but when they wer ...
Dynamic Morphology of Clear Corneal Cataract Incisions - F
... chamber with balanced salt solution and applying pressure to the anterior cornea to check for leakage from the wound. If there is some leakage, the surgeon might elect to place a cannula into the wound and inject balanced salt solution, so as to “hydrate” the wound and allow the swollen stroma to ap ...
... chamber with balanced salt solution and applying pressure to the anterior cornea to check for leakage from the wound. If there is some leakage, the surgeon might elect to place a cannula into the wound and inject balanced salt solution, so as to “hydrate” the wound and allow the swollen stroma to ap ...
American Society of Cataract and Refractive Surgery
... Decentered IOL: When IOLs are decentered 1.0 mm, there is far more image degradation with an IOL with negative spherical aberration (Tecnis) compared to zero spherical aberration (AO). ...
... Decentered IOL: When IOLs are decentered 1.0 mm, there is far more image degradation with an IOL with negative spherical aberration (Tecnis) compared to zero spherical aberration (AO). ...
The triple classification of dry eye for practical clinical use
... d a c ryoglands and ocular surface epithelium, and diverse grades of severity. The specialists in xero-dacryology must know these three parameters to evaluate any case of dry eye, and to establish an adequate treatment. To facilitate this, an open session in the VIII congre s s of the International ...
... d a c ryoglands and ocular surface epithelium, and diverse grades of severity. The specialists in xero-dacryology must know these three parameters to evaluate any case of dry eye, and to establish an adequate treatment. To facilitate this, an open session in the VIII congre s s of the International ...
Myopia and Myopia Control: Options and Outlooks
... myopic progression for the group as whole; however, they were not masked to the treatment protocol.62 Another larger study, in which the researchers were masked, looked at children of similar ethnicity and saw no effect from progressive spectacles.63 The Correction of Myopia Evaluation Trial (COMET) ...
... myopic progression for the group as whole; however, they were not masked to the treatment protocol.62 Another larger study, in which the researchers were masked, looked at children of similar ethnicity and saw no effect from progressive spectacles.63 The Correction of Myopia Evaluation Trial (COMET) ...
Viscoelastic levitation of posteriorly dislocated intraocular lenses
... causes of delayed posterior dislocation of IOLs. Platehaptic IOLs can dislocate after a neodymium:YAG (Nd: YAG) capsulotomy or extension of an anterior capsule defect created during surgery.2,3 Sutured posterior chamber IOLs can dislocate because of erosion or accidental cutting of the polypropylene ...
... causes of delayed posterior dislocation of IOLs. Platehaptic IOLs can dislocate after a neodymium:YAG (Nd: YAG) capsulotomy or extension of an anterior capsule defect created during surgery.2,3 Sutured posterior chamber IOLs can dislocate because of erosion or accidental cutting of the polypropylene ...
A CONTRIBUTION TO THE PATHOLOGY OF BOWMAN`S
... Henle's warts, drusen of Bruch's membrane and the fatty impairment of Bowman's membrane in arcus senilis. Wear and tear of life seems to damage glass membranes at an earlier term than the surrounding tissues. A metabolism inferior to that of vascularised tissues is likely in glass membranes. I.- Ban ...
... Henle's warts, drusen of Bruch's membrane and the fatty impairment of Bowman's membrane in arcus senilis. Wear and tear of life seems to damage glass membranes at an earlier term than the surrounding tissues. A metabolism inferior to that of vascularised tissues is likely in glass membranes. I.- Ban ...
Central Corneal Thickness and Relating Factors
... a higher incidence of retinal detachment. Changes in the anterior segment associated with myopia are still under debate. The myopic eye is known to be longer than the normal emmetropic eye. If this is the result of general growth, one might expect the cornea to have grown thicker than normal. If ins ...
... a higher incidence of retinal detachment. Changes in the anterior segment associated with myopia are still under debate. The myopic eye is known to be longer than the normal emmetropic eye. If this is the result of general growth, one might expect the cornea to have grown thicker than normal. If ins ...
Introduction to Ophthalmic Optics Workbook
... lenses are designed to have a single spherical or spherocylindrical power in the lens. Multifocal lenses have more than one designed power in the lens. Examples of multifocals include bifocals, trifocals, and progressive addition lenses, as illustrated in Figure 1:3. Multifocal lenses are most commo ...
... lenses are designed to have a single spherical or spherocylindrical power in the lens. Multifocal lenses have more than one designed power in the lens. Examples of multifocals include bifocals, trifocals, and progressive addition lenses, as illustrated in Figure 1:3. Multifocal lenses are most commo ...
for noninfectious uveitis affecting the back segment of the
... Uveitis can damage the eye and cause long-term complications that reduce vision. While many people have only a single episode of uveitis, others may have recurrences over IMPORTANT INFORMATION months to years. ItSAFETY is very important to receive The most common side effects reported medical treatm ...
... Uveitis can damage the eye and cause long-term complications that reduce vision. While many people have only a single episode of uveitis, others may have recurrences over IMPORTANT INFORMATION months to years. ItSAFETY is very important to receive The most common side effects reported medical treatm ...
Central corneal thickness measurement with the Pentacam
... years that provide measurement of central corneal thickness in a convenient, noncontact way. These new instruments have been shown to have high repeatability and reproducibility. For example, OCTwas shown to have a coefficient of repeatability of around 2% and a coefficient of interoperator reproduc ...
... years that provide measurement of central corneal thickness in a convenient, noncontact way. These new instruments have been shown to have high repeatability and reproducibility. For example, OCTwas shown to have a coefficient of repeatability of around 2% and a coefficient of interoperator reproduc ...
EYE CORROSION/IRRITATION DEFINITIONS
... A single harmonised hazard category is adopted for substances that have the potential to damage the eyes seriously. This hazard category - Category 1(irreversible effects on the eye) - includes the criteria listed below. These observations include animals with grade 4 cornea lesions and other severe ...
... A single harmonised hazard category is adopted for substances that have the potential to damage the eyes seriously. This hazard category - Category 1(irreversible effects on the eye) - includes the criteria listed below. These observations include animals with grade 4 cornea lesions and other severe ...
Contact lens
A contact lens, or simply contact, is a thin lens placed directly on the surface of the eye. Contact lenses are considered medical devices and can be worn to correct vision, or for cosmetic or therapeutic reasons. In 2004, it was estimated that 125 million people (2%) use contact lenses worldwide, including 28 to 38 million in the United States. In 2010, worldwide contact lens market was estimated at $6.1 billion, while the U.S. soft lens market is estimated at $2.1 billion. Multiple scientists have estimated that the global market will reach $11.7 billion by 2015. As of 2010, the average age of contact lens wearers globally was 31 years old and two thirds of wearers were female.People choose to wear contact lenses for many reasons. Aesthetics and cosmetics are often motivating factors for people who would like to avoid wearing glasses or would like to change the appearance of their eyes. Other people wear contacts for functional or optical reasons. When compared with spectacles, contact lenses typically provide better peripheral vision, and do not collect moisture such as rain, snow, condensation, or sweat. This makes them ideal for sports and other outdoor activities. Contact lens wearers can also wear sunglasses, goggles, or other eyewear of their choice without having to fit them with prescription lenses or worry about compatibility with glasses. Additionally, there are conditions such as keratoconus and aniseikonia that are typically corrected better by contacts than by glasses.