Submission to the American Optometric Association Contact Lens and
... dryness were less frequent in silicone hydrogel contact lens wearers over one year compared with wearers of conventional soft lenses. In addition, subjects wearing silicone hydrogel lenses in the study reported that they were less likely to discontinue contact lens wear resulting from dryness, or re ...
... dryness were less frequent in silicone hydrogel contact lens wearers over one year compared with wearers of conventional soft lenses. In addition, subjects wearing silicone hydrogel lenses in the study reported that they were less likely to discontinue contact lens wear resulting from dryness, or re ...
Posterior polymorphous dystrophy and keratoconus
... expression variability of both KC and PPD2,3,5,19,32-37. Even though most KC cases are sporadic, up to 10% of these patients have a family history; its genetics are extremely complex and heterogeneous. Regarding PPCD, it has a wide range of expression with an increasingly evident multiplicity of chr ...
... expression variability of both KC and PPD2,3,5,19,32-37. Even though most KC cases are sporadic, up to 10% of these patients have a family history; its genetics are extremely complex and heterogeneous. Regarding PPCD, it has a wide range of expression with an increasingly evident multiplicity of chr ...
Wavefront Ablation Profiles in Refractive Surgery
... The flying-spot laser must be delivered precisely for an accurate wavefront correction and requires highspeed eye-tracking systems because of the smaller spot size and risk of individual pulse decentration and misplacement compared to broad-beam lasers. Centration needs to be accurate,5 as minimal mi ...
... The flying-spot laser must be delivered precisely for an accurate wavefront correction and requires highspeed eye-tracking systems because of the smaller spot size and risk of individual pulse decentration and misplacement compared to broad-beam lasers. Centration needs to be accurate,5 as minimal mi ...
Final published version
... with impaired hearing makes this procedure potentially interesting for research and for clinical applications. However, the practical challenges required by Wendt et al. [5] were high: they employed an optical eye tracker and a measurement protocol consisting of up to 600 sentences per subject (requ ...
... with impaired hearing makes this procedure potentially interesting for research and for clinical applications. However, the practical challenges required by Wendt et al. [5] were high: they employed an optical eye tracker and a measurement protocol consisting of up to 600 sentences per subject (requ ...
Acquired Maculopathy
... a gas bubble into the eye and place the patient face down in order to tamponade the hemorrhage and spread the blood out. There is no great treatment for a subfoveal CNVM. Some surgeons are lasering subfoveal membranes in the thought that the laser damage will be less severe than the natural course o ...
... a gas bubble into the eye and place the patient face down in order to tamponade the hemorrhage and spread the blood out. There is no great treatment for a subfoveal CNVM. Some surgeons are lasering subfoveal membranes in the thought that the laser damage will be less severe than the natural course o ...
Quantitative reflection spectroscopy at the human ocular fundus
... caucasians as well as patients suffering from macular holes, age-related macular degeneration (AMD), juvenile macular degeneration and high myopia were measured by imaging fundus reflectometry. The technique is described in detail elsewhere (Hammer 1997). In principle, the light of the xenon flash o ...
... caucasians as well as patients suffering from macular holes, age-related macular degeneration (AMD), juvenile macular degeneration and high myopia were measured by imaging fundus reflectometry. The technique is described in detail elsewhere (Hammer 1997). In principle, the light of the xenon flash o ...
With Microincisional Vitrectomy Surgery With
... flow rate / lumen area /cut rate. attraction. If the flow rate is increased, the length of pull of collaFigure 1 shows the flow rate vs the distance for all gen fibril is increased, vitreous traction is increased, three gauges. Figure 2 shows the vacuum required for decreasing safety. Conversely, if ...
... flow rate / lumen area /cut rate. attraction. If the flow rate is increased, the length of pull of collaFigure 1 shows the flow rate vs the distance for all gen fibril is increased, vitreous traction is increased, three gauges. Figure 2 shows the vacuum required for decreasing safety. Conversely, if ...
Rate of Cataract Formation in 343 Highly Myopic Eyes
... cataract with the Staar lens were with the V3 model and the other one was with the V2 model. However, anterior subcapsular opacification in the Adatomed group developed more rapidly compared to the Staar group. The average time to cataract appearance in the Adatomed group was 13.05 ± 4.96 months; in ...
... cataract with the Staar lens were with the V3 model and the other one was with the V2 model. However, anterior subcapsular opacification in the Adatomed group developed more rapidly compared to the Staar group. The average time to cataract appearance in the Adatomed group was 13.05 ± 4.96 months; in ...
Corneal Surgical Techniques
... The American Academy of Ophthalmology (AAO) recommended the next indications for PRK: myopia up to – 8 Dsph, hyperopia up to + 4 Dsph, and astigmatism up to 4 Dcyl (7). Large corrections (ablation depth greater than 100 µm) are considered for adjunctive 0,02% mitomycin C (MMC) because of the increas ...
... The American Academy of Ophthalmology (AAO) recommended the next indications for PRK: myopia up to – 8 Dsph, hyperopia up to + 4 Dsph, and astigmatism up to 4 Dcyl (7). Large corrections (ablation depth greater than 100 µm) are considered for adjunctive 0,02% mitomycin C (MMC) because of the increas ...
A partial-thickness epithelial defect increases the adherence
... Some patients with infectious keratitis have no clinically demonstrable corneal abrasion predisposing them to infection. Subtle, undetectable corneal injuries may facilitate bacterial adherence to the cornea, eventually leading to keratitis. To study this concept, we have developed a rabbit model in ...
... Some patients with infectious keratitis have no clinically demonstrable corneal abrasion predisposing them to infection. Subtle, undetectable corneal injuries may facilitate bacterial adherence to the cornea, eventually leading to keratitis. To study this concept, we have developed a rabbit model in ...
The Ocular Surface: The Challenge to Enable and Protect Vision
... Protective mechanisms of the ocular surface epithelium include the ability to heal quickly and adhere tenaciously to underlying connective tissue, especially since the cornea and ocular surface are exposed to the “outside” world, and since blinking and eye rubbing puts abrasive pressure on the epith ...
... Protective mechanisms of the ocular surface epithelium include the ability to heal quickly and adhere tenaciously to underlying connective tissue, especially since the cornea and ocular surface are exposed to the “outside” world, and since blinking and eye rubbing puts abrasive pressure on the epith ...
optic neuritis recent concepts
... vision is no light perception, severe optic disc swelling with hemorrhages are seen, or macular exudates such as a retinal star pattern occur. In patients with CDMS, the median time to diagnosis was 3 years and 34% of the diagnoses were made in the first 2 years whereas 72% were made within 5 years. ...
... vision is no light perception, severe optic disc swelling with hemorrhages are seen, or macular exudates such as a retinal star pattern occur. In patients with CDMS, the median time to diagnosis was 3 years and 34% of the diagnoses were made in the first 2 years whereas 72% were made within 5 years. ...
Gaze Control in Humans: Eye-Head Coordination - Research
... arc (adjustable to the subject’s eye level), 115 cm from the center of rotation of the subject’s head. At this distance the angle between the central fixation point and the target is slightly different depending on whether it is measured at the center of rotation of the head or eyes (4, 10). The dif ...
... arc (adjustable to the subject’s eye level), 115 cm from the center of rotation of the subject’s head. At this distance the angle between the central fixation point and the target is slightly different depending on whether it is measured at the center of rotation of the head or eyes (4, 10). The dif ...
take-home - Ophthalmology Times
... the suction cup apposes the anterior capsule to the cutting element and also shields surrounding tissues from the energy delivery. A retractable push rod extends to stretch the capsulotomy tip into an elongated shape so that it can enter through a sub-2.2-mm clear corneal incision. “The nitinol used ...
... the suction cup apposes the anterior capsule to the cutting element and also shields surrounding tissues from the energy delivery. A retractable push rod extends to stretch the capsulotomy tip into an elongated shape so that it can enter through a sub-2.2-mm clear corneal incision. “The nitinol used ...
Posterior Vitreous Detachment and Its Sequellae
... anteroposterior movements of the lens-iris diaphragm, thereby stabilizing the eye and maintaining a more accurate focusing ability at all times. Finally, some fish have vitreous both in front of and behind the crystalline lens to dampen accommodative movements. The vitreous may therefore suppress an ...
... anteroposterior movements of the lens-iris diaphragm, thereby stabilizing the eye and maintaining a more accurate focusing ability at all times. Finally, some fish have vitreous both in front of and behind the crystalline lens to dampen accommodative movements. The vitreous may therefore suppress an ...
Leprosy and the eye teaching set
... leprosy, including former leprosy patients who had been released from treatment (RFT). If age-related cataract and other non-leprosy causes are also considered, the total number of blind leprosy patients may be as many as 300,000.4 Eye complications in leprosy are fairly common. Leprosy patients can ...
... leprosy, including former leprosy patients who had been released from treatment (RFT). If age-related cataract and other non-leprosy causes are also considered, the total number of blind leprosy patients may be as many as 300,000.4 Eye complications in leprosy are fairly common. Leprosy patients can ...
Guidelines for Management of Strabismus in Childhood 2012
... convergence can be assessed individually. Saccadic and pursuit movements are occasionally of interest in neurological cases. The use of a diagram to document extra ocular movements is considered best practice. Nystagmus may be present and needs to be carefully assessed and documented in the primary ...
... convergence can be assessed individually. Saccadic and pursuit movements are occasionally of interest in neurological cases. The use of a diagram to document extra ocular movements is considered best practice. Nystagmus may be present and needs to be carefully assessed and documented in the primary ...
Nedivi Laboratory at MIT – Neuroscience Research at MIT
... Animal manipulations and tissue isolation. All animal work was approved by the Massachusetts Institute of Technology Committee on Animal C are; it conforms to National Institutes of Health guidelines for the use and care of vertebrate animals. Wistar–Kyoto rats (Taconic, Germantown, N Y) were housed ...
... Animal manipulations and tissue isolation. All animal work was approved by the Massachusetts Institute of Technology Committee on Animal C are; it conforms to National Institutes of Health guidelines for the use and care of vertebrate animals. Wistar–Kyoto rats (Taconic, Germantown, N Y) were housed ...
dislocation of globe into the anterior cranial fossa
... the best of our knowledge, only a few cases have been reported in the literature. Time is a major modifiable factor in the management of traumatic globe dislocations. An eye dislocated out of the orbital socket is under serious vascular compromise and sustains severe mechanical damage. Often these p ...
... the best of our knowledge, only a few cases have been reported in the literature. Time is a major modifiable factor in the management of traumatic globe dislocations. An eye dislocated out of the orbital socket is under serious vascular compromise and sustains severe mechanical damage. Often these p ...
Perkins instructions for use - Haag
... No damaged prisms should be used Before each use the contact surface of all prisms should be checked for contamination or damage (such as scratching, rips or sharp edges). A slit lamp microscope or Loupe is best used for this purpose, at a magnification of 10x to 16x. • If cracks form, the disinfect ...
... No damaged prisms should be used Before each use the contact surface of all prisms should be checked for contamination or damage (such as scratching, rips or sharp edges). A slit lamp microscope or Loupe is best used for this purpose, at a magnification of 10x to 16x. • If cracks form, the disinfect ...
ALSO INSIDE: - Review of Optometry
... ver the years, contact lens practice has advanced through the research contributions of a relatively small group of researchers and astute clinicians. These pioneers, such as Tuohy, Wichterle and Lim, Sarver, Mandel, Polse and Korb, have provided groundbreaking ideas and novel approaches on ways to ...
... ver the years, contact lens practice has advanced through the research contributions of a relatively small group of researchers and astute clinicians. These pioneers, such as Tuohy, Wichterle and Lim, Sarver, Mandel, Polse and Korb, have provided groundbreaking ideas and novel approaches on ways to ...
to This Issue
... Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. In clinical trials, the most common ...
... Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. In clinical trials, the most common ...
Effects of posterior capsular disruption on the outcome of
... effects seen with peribulbar anaesthesia. Although cases considered difficult - for example, pseudoexfoliation or traumatic cataract, might have undergone general anaesthesia from the surgeon's preference, we feel patient preference was overall a more likely explanation for the higher incidence of g ...
... effects seen with peribulbar anaesthesia. Although cases considered difficult - for example, pseudoexfoliation or traumatic cataract, might have undergone general anaesthesia from the surgeon's preference, we feel patient preference was overall a more likely explanation for the higher incidence of g ...
Formulation and Evaluation of Gel Forming Ocular Minitablets
... tungsten filament with an acceleration voltage of 5–20kV. The samples were mounted onto stubs using double-sided tape and were gold coated to a thickness of circa 15 nm by a Polaron SC7640 sputter gold coater (Quorum Technologies). The imaging process was performed in a high vacuum environment 2.2.3 ...
... tungsten filament with an acceleration voltage of 5–20kV. The samples were mounted onto stubs using double-sided tape and were gold coated to a thickness of circa 15 nm by a Polaron SC7640 sputter gold coater (Quorum Technologies). The imaging process was performed in a high vacuum environment 2.2.3 ...
Human eye
The human eye is an organ that reacts to light and has several purposes. As a sense organ, the mammalian eye allows vision. Rod and cone cells in the retina allow conscious light perception and vision including color differentiation and the perception of depth. The human eye can distinguish about 10 million colors.Similar to the eyes of other mammals, the human eye's non-image-forming photosensitive ganglion cells in the retina receive light signals which affect adjustment of the size of the pupil, regulation and suppression of the hormone melatonin and entrainment of the body clock.