Cataract
... cataracts. Cataracts may also be produced by eye injury or physical trauma. A study among Icelandair pilots showed commercial airline pilots are three times more likely to develop cataracts than people with nonflying jobs. This is thought to be caused by excessive exposure at high altitudes to radia ...
... cataracts. Cataracts may also be produced by eye injury or physical trauma. A study among Icelandair pilots showed commercial airline pilots are three times more likely to develop cataracts than people with nonflying jobs. This is thought to be caused by excessive exposure at high altitudes to radia ...
dislocated Posterior chamber intraocular Lens Management
... Step No. 2: Sclerotomies for polypropylene suture, securing the IOL. The 23-gauge trocar blades are used to make the sclerotomies (Figure 2). These 23-gauge sclerotomies are self-sealing yet large enough to allow rotation of the knot into the globe once the polypropylene suture is tied. The 2 sets o ...
... Step No. 2: Sclerotomies for polypropylene suture, securing the IOL. The 23-gauge trocar blades are used to make the sclerotomies (Figure 2). These 23-gauge sclerotomies are self-sealing yet large enough to allow rotation of the knot into the globe once the polypropylene suture is tied. The 2 sets o ...
Intraocular lens tilt and decentration: A concern for contemporary
... and decentration after surgically uneventful implantation. Potential influences of normally occurring misalignment of modern designs of IOL on the optical performances are discussed. Materials and methods: Published theoretical and clinical studies in relation to primarily implanted posterior chambe ...
... and decentration after surgically uneventful implantation. Potential influences of normally occurring misalignment of modern designs of IOL on the optical performances are discussed. Materials and methods: Published theoretical and clinical studies in relation to primarily implanted posterior chambe ...
Post-mortem Human Iris Recognition
... wrinkling of the corneal surface, flaccidity of the eyeball and sinking of the eyeball into the orbital cavity as time progresses. Usually, turbidity of the cornea will appear from a few hours to 24 hours after demise. It depends on the degree of eyelid closure, environmental temperature, humidity, ...
... wrinkling of the corneal surface, flaccidity of the eyeball and sinking of the eyeball into the orbital cavity as time progresses. Usually, turbidity of the cornea will appear from a few hours to 24 hours after demise. It depends on the degree of eyelid closure, environmental temperature, humidity, ...
Aetiology of Cataract
... 5. Loss or marked diminution of vision in bright sunlight or bright light beam in central posterior sub-capsular cataract. 6. Monocular diplopia or polyopia in presence of cortical spoke opacities 7. Glare in posterior sub-capsular cortical cataract due to increased scattering of light ...
... 5. Loss or marked diminution of vision in bright sunlight or bright light beam in central posterior sub-capsular cataract. 6. Monocular diplopia or polyopia in presence of cortical spoke opacities 7. Glare in posterior sub-capsular cortical cataract due to increased scattering of light ...
Ophthalmology Microsoft Word
... A. А. yellow and green B. light blue and navy blue C. white D. *red and orange E. black 97. The vision field border for white from the top makes in norm: A. 90° B. 55° * C. 45° D. 75° E. 80° 98. How many mistakes is possible to make in case of reading letters in 3-6 table lines due to vision acuty e ...
... A. А. yellow and green B. light blue and navy blue C. white D. *red and orange E. black 97. The vision field border for white from the top makes in norm: A. 90° B. 55° * C. 45° D. 75° E. 80° 98. How many mistakes is possible to make in case of reading letters in 3-6 table lines due to vision acuty e ...
Ophthalmology Microsoft Word
... A. А. yellow and green B. light blue and navy blue C. white D. *red and orange E. black 97. The vision field border for white from the top makes in norm: A. 90° B. 55° * C. 45° D. 75° E. 80° 98. How many mistakes is possible to make in case of reading letters in 3-6 table lines due to vision acuty e ...
... A. А. yellow and green B. light blue and navy blue C. white D. *red and orange E. black 97. The vision field border for white from the top makes in norm: A. 90° B. 55° * C. 45° D. 75° E. 80° 98. How many mistakes is possible to make in case of reading letters in 3-6 table lines due to vision acuty e ...
Subconjunctival and episcleral lipid deposits
... 1975), while the present study suggests that it might even be reversed. The American study also showed a preponderance of women with subconjunctival lipid at all ages, but there was no convincing evidence of such a predilection in British subjects. However, the overall prevalence seems to be slightl ...
... 1975), while the present study suggests that it might even be reversed. The American study also showed a preponderance of women with subconjunctival lipid at all ages, but there was no convincing evidence of such a predilection in British subjects. However, the overall prevalence seems to be slightl ...
glaucomatous ocular hypertension - British Journal of Ophthalmology
... (b) Alterations in the visual field in cases of glaucoma consist in nasal and inferior narrowing. This sign is notorious and re, quires stressing only in order to recall the fact that its constant and early appearance renders it characteristic of true glaucoma. However,, this is not the only change ...
... (b) Alterations in the visual field in cases of glaucoma consist in nasal and inferior narrowing. This sign is notorious and re, quires stressing only in order to recall the fact that its constant and early appearance renders it characteristic of true glaucoma. However,, this is not the only change ...
Glare
... acuity are often insensitive to the subtle changes in the ocular media during early cataract or following many ophthalmic procedures. Excellent visual acuity is frequently achieved after cataract and many types of corneal surgery, but despite having good VA, many patients complain that their vision ...
... acuity are often insensitive to the subtle changes in the ocular media during early cataract or following many ophthalmic procedures. Excellent visual acuity is frequently achieved after cataract and many types of corneal surgery, but despite having good VA, many patients complain that their vision ...
Role of Lacrimal Gland in Tear Production in Different Animal Species
... and stability of the tear and modulating the ocular wound healing process (Zhou et al., 2007). The comprehensive and comparative analysis of tear proteins can be helpful in the studies of pathophysiological mechanisms and diagnosis of ocular surface diseases. The healthy ocular surface is associated ...
... and stability of the tear and modulating the ocular wound healing process (Zhou et al., 2007). The comprehensive and comparative analysis of tear proteins can be helpful in the studies of pathophysiological mechanisms and diagnosis of ocular surface diseases. The healthy ocular surface is associated ...
Leaflet POAG chronic open angle glaucoma
... Version 1 May 2010, Next revision date November 2013 ...
... Version 1 May 2010, Next revision date November 2013 ...
TABLES TABLE 1. Examples of the use of drug
... - The flurbiprofen-loade NLC proved to be physico-chemically stable and did not show toxicity to the ocular tissues. - A NLC loaded cyclosporine A (CyA) formulation was prepared by melt-emulsification method. - Amucoadhesive NLC was obtained by incubating NLC nanoemulsion ...
... - The flurbiprofen-loade NLC proved to be physico-chemically stable and did not show toxicity to the ocular tissues. - A NLC loaded cyclosporine A (CyA) formulation was prepared by melt-emulsification method. - Amucoadhesive NLC was obtained by incubating NLC nanoemulsion ...
Comparative study of treatment of the dry eye
... Backround: A deficiency in the tear film lipid layer is aetiological in about 80 % of the patients suffering from dry eye, which results in excessive evaporation (so-called hyperevaporative dry eye). The treatment with conventional artificial tears did not prove to be successful here. In this study ...
... Backround: A deficiency in the tear film lipid layer is aetiological in about 80 % of the patients suffering from dry eye, which results in excessive evaporation (so-called hyperevaporative dry eye). The treatment with conventional artificial tears did not prove to be successful here. In this study ...
Abnormalities in the Lid Margin Examination
... from dry eye caused by a deficiency of the tear film lipid layer, which were organised into two groups. Group A (n = 38) was treated for the first 6 weeks with a liposomal eye spray (Tears Again ®), while the patients of the group of B (n = 36) were treated with an eye gel containing triglycerides ( ...
... from dry eye caused by a deficiency of the tear film lipid layer, which were organised into two groups. Group A (n = 38) was treated for the first 6 weeks with a liposomal eye spray (Tears Again ®), while the patients of the group of B (n = 36) were treated with an eye gel containing triglycerides ( ...
Eyes on the Future Ireland 2008: A study into the prevalence of
... academic literature reporting on clinical trials an identical level of vision will be specified as 0.0 LogMAR (Appendix 2). In light of these factors and the lack of any specific Irish epidemiological data on vision impairment, it is extremely difficult at present to predict, with any degree of accu ...
... academic literature reporting on clinical trials an identical level of vision will be specified as 0.0 LogMAR (Appendix 2). In light of these factors and the lack of any specific Irish epidemiological data on vision impairment, it is extremely difficult at present to predict, with any degree of accu ...
Effects of posterior capsular disruption on the outcome of
... implant an IOL. In our series (see Table 3), three cases did not receive an IOL during the primary procedure; of these, two cases had a capsular dialysis. In the first (see case 1, Table 6) there was insufficient zonular support for a PC IOL; in the second (see case 6, Table 6) the capsular bag was ...
... implant an IOL. In our series (see Table 3), three cases did not receive an IOL during the primary procedure; of these, two cases had a capsular dialysis. In the first (see case 1, Table 6) there was insufficient zonular support for a PC IOL; in the second (see case 6, Table 6) the capsular bag was ...
Amniotic Membrane Transplantation for Ocular Surface Reconstruction
... systemic cyclosporin is concomitantly used when amniotic membrane transplantation is performed as the first stage procedure to restore the limbal stromal environment. This effect is presumably attributed to the restoration of a non-inflamed limbal stroma. Because of these reasons we thus advise perf ...
... systemic cyclosporin is concomitantly used when amniotic membrane transplantation is performed as the first stage procedure to restore the limbal stromal environment. This effect is presumably attributed to the restoration of a non-inflamed limbal stroma. Because of these reasons we thus advise perf ...
Accommodation in phakic and pseudophakic eyes measured with
... adjustment ability of the lens is regarded as the principal underlying factor; however, the shifting of the lens may also play an important role.1–3,14,15 With aging, a change in the shape, size, and position of the lens occurs.16,17 The age-related decline and the total ceasing of the accommodation ...
... adjustment ability of the lens is regarded as the principal underlying factor; however, the shifting of the lens may also play an important role.1–3,14,15 With aging, a change in the shape, size, and position of the lens occurs.16,17 The age-related decline and the total ceasing of the accommodation ...
Volume change of the ocular lens during accommodation
... inevitably must involve changes in either capsular surface area or lens volume, or both. Classic theories of lenticular accommodation suggest that the volume of the intraocular crystalline lens remains constant during the accommodation process (16, 17, 30). No empirical studies have demonstrated tha ...
... inevitably must involve changes in either capsular surface area or lens volume, or both. Classic theories of lenticular accommodation suggest that the volume of the intraocular crystalline lens remains constant during the accommodation process (16, 17, 30). No empirical studies have demonstrated tha ...
Femtosecond laser capsulotomy
... DESIGN: Experimental and clinical study. METHODS: Capsulotomies performed by an optical coherence tomography–guided femtosecond laser were evaluated in porcine and human cadaver eyes. Subsequently, the procedure was performed in 39 patients as part of a prospective randomized study of femtosecond la ...
... DESIGN: Experimental and clinical study. METHODS: Capsulotomies performed by an optical coherence tomography–guided femtosecond laser were evaluated in porcine and human cadaver eyes. Subsequently, the procedure was performed in 39 patients as part of a prospective randomized study of femtosecond la ...
View Sample Lesson in Word Format
... of the anterior chamber is the iris, a thin membrane that gives the eye its color. The opening in the center of the iris is called the pupil, and it appears as a dark circle. By controlling the size of the pupil, the iris regulates the amount of light that reaches the retina. Light passes through t ...
... of the anterior chamber is the iris, a thin membrane that gives the eye its color. The opening in the center of the iris is called the pupil, and it appears as a dark circle. By controlling the size of the pupil, the iris regulates the amount of light that reaches the retina. Light passes through t ...
The Appearance of Hyper-Reflective Superficial Epithelial Cells
... Hyper-reflective superficial cells were an unexpected finding while examining the corneal epithelium using confocal microscopy (CM), during an MSc thesis1 conducted in 2006 at the University of Waterloo, Canada. The author1 suggested that the appearance of these hyper-reflective cells could be assoc ...
... Hyper-reflective superficial cells were an unexpected finding while examining the corneal epithelium using confocal microscopy (CM), during an MSc thesis1 conducted in 2006 at the University of Waterloo, Canada. The author1 suggested that the appearance of these hyper-reflective cells could be assoc ...
Front cover - American Academy of Ophthalmology
... The Preferred Practice Pattern® guidelines are based on the best available scientific data as interpreted by panels of knowledgeable health professionals. In some instances, such as when results of carefully conducted clinical trials are available, the data are particularly persuasive and provide cl ...
... The Preferred Practice Pattern® guidelines are based on the best available scientific data as interpreted by panels of knowledgeable health professionals. In some instances, such as when results of carefully conducted clinical trials are available, the data are particularly persuasive and provide cl ...
Modulation transfer function and optical quality after
... Laboratories, Inc.) was performed in all cases by the same experienced examiner. All eyes were targeted for emmetropia. The same experienced surgeon performed all surgeries. The technique included standardized small-incision phacoemulsification and IOL implantation in the capsular bag. The primary o ...
... Laboratories, Inc.) was performed in all cases by the same experienced examiner. All eyes were targeted for emmetropia. The same experienced surgeon performed all surgeries. The technique included standardized small-incision phacoemulsification and IOL implantation in the capsular bag. The primary o ...
Keratoconus
Keratoconus (KC, KTCN) (from Greek: kerato- horn, cornea; and konos cone) is a degenerative disorder of the eye in which structural changes within the cornea cause it to thin and change to a more conical shape than the more normal gradual curve.Keratoconus can cause substantial distortion of vision, with multiple images, streaking and sensitivity to light all often reported by the person. It is typically diagnosed in the person's adolescent years. If both eyes are significantly affected, the deterioration in vision can affect the person's ability to drive a car or read normal print.In most cases, corrective lenses fitted by a specialist are effective enough to allow the person to continue to drive legally and likewise function normally. Further progression of the disease may require surgery, for which several options are available, including intrastromal corneal ring segments, corneal collagen cross-linking, mini asymmetric radial keratotomy, corneal intrastromal implantation system (CISIS), topography-guided photorefractive keratectomy (PRK), topography-guided conductive keratoplasty, phakic intraocular lenses and, in 25% of cases, corneal transplantation.Estimates of the prevalence for keratoconus range from 1 in 500 to 1 in 2000 people, but difficulties with differential diagnosis cause uncertainty as to its prevalence. It seems to occur in populations throughout the world, although it is observed more frequently in certain ethnic groups, such as South Asians. Environmental and genetic factors are considered possible causes, but the exact cause is uncertain. It has been associated with detrimental enzyme activity within the cornea.