Assessment of the tear Film - Johnson and Johnson Vision Care
... has been squeezed into a thick layer during lid closure, spreads out, producing a new monolayer across the aqueous to reduce tear evaporation. The new tear film is a relatively unstable structure. Despite the presence of the lipid layer, there is still some tear evaporation that reduces its thicknes ...
... has been squeezed into a thick layer during lid closure, spreads out, producing a new monolayer across the aqueous to reduce tear evaporation. The new tear film is a relatively unstable structure. Despite the presence of the lipid layer, there is still some tear evaporation that reduces its thicknes ...
Endothelial Keratoplasty in Challenging Cases
... technique. Ideal modifications include capsulorexis being performed under air, and IOL inserted by means of the AC maintainer, in order to completely avoid the use of viscoelastic. If the surgeon is not comfortable performing these manoeuvres, a cohesive viscoelastic device may be chosen, bus comple ...
... technique. Ideal modifications include capsulorexis being performed under air, and IOL inserted by means of the AC maintainer, in order to completely avoid the use of viscoelastic. If the surgeon is not comfortable performing these manoeuvres, a cohesive viscoelastic device may be chosen, bus comple ...
Pupil Damage After Periorbital Laser Treatment of a Port
... pulsed-light technology, and the long-pulsed alexandrite laser (755 nm). The alexandrite laser is most commonly used for epilation and treatment of broken vessels in the legs; it is also a useful alternative in cases of bulky malformations and mature port-wine stains.4 No et al7 reported that the al ...
... pulsed-light technology, and the long-pulsed alexandrite laser (755 nm). The alexandrite laser is most commonly used for epilation and treatment of broken vessels in the legs; it is also a useful alternative in cases of bulky malformations and mature port-wine stains.4 No et al7 reported that the al ...
Care and Use of the Compound Microscopes
... – Cover the right eye and turn the left ocular lens until the same spot in the field of view is in sharp focus. – Observe with both eyes, adjust interpupillary distance until one clear image merges together. ...
... – Cover the right eye and turn the left ocular lens until the same spot in the field of view is in sharp focus. – Observe with both eyes, adjust interpupillary distance until one clear image merges together. ...
Program & Abstracts KPro Study Group Symposium
... Purpose: To analyze the anatomical and functional results, complications, post-surgical additional procedures of the Boston K-Pro type 1 implantation in high-risk cases in two Ophthalmology Centers. Methodology: Retrospective case-series on twenty high-risk cases of chemical burn or muco-cutaneous s ...
... Purpose: To analyze the anatomical and functional results, complications, post-surgical additional procedures of the Boston K-Pro type 1 implantation in high-risk cases in two Ophthalmology Centers. Methodology: Retrospective case-series on twenty high-risk cases of chemical burn or muco-cutaneous s ...
Contact Lens Correction of Regular and Irregular Astigmatism
... Soft contact lenses are made of a flexible plastic material, which is normally hydrophilic. These lenses are generally more comfortable than rigid contact lens, and the lens diameter is large, extending beyond the sclerocorneal limbus. When a soft lens is placed on the eye, the lens conforms to the ...
... Soft contact lenses are made of a flexible plastic material, which is normally hydrophilic. These lenses are generally more comfortable than rigid contact lens, and the lens diameter is large, extending beyond the sclerocorneal limbus. When a soft lens is placed on the eye, the lens conforms to the ...
Reviewing the tear film`s lipid layer
... thickness of this oily layer varies across the surface of the eye and forms a multilayer of lipids10, 22 which have a melting point of approximately 32-35º C.1, 23 It remains unclear whether the lipids form a bilayer or a trilayer24 thus further discussion will be based on a lipid multilayer compris ...
... thickness of this oily layer varies across the surface of the eye and forms a multilayer of lipids10, 22 which have a melting point of approximately 32-35º C.1, 23 It remains unclear whether the lipids form a bilayer or a trilayer24 thus further discussion will be based on a lipid multilayer compris ...
to view - Centre for Vision in the Developing World
... teenagers in China1,2, that the process of self-refraction produces excellent visual acuity in almost all subjects and a refraction that is, in most subjects, very close to that of cycloplegic refraction. Of those 9 eyes (out of 700 total) unable to obtain 20/32 or better VA, 4 were under-minused, 2 ...
... teenagers in China1,2, that the process of self-refraction produces excellent visual acuity in almost all subjects and a refraction that is, in most subjects, very close to that of cycloplegic refraction. Of those 9 eyes (out of 700 total) unable to obtain 20/32 or better VA, 4 were under-minused, 2 ...
Congenital Nasolacrimal Duct Obstruction
... over the sac area or syringing with saline( Fig.4). Upper punctum is preferred for probing to prevent any damage to the lower punctum during the manipulation. Punctum is dilated with Nettleship dilator (Fig.5a) and then Bowman probe ( size0 or 00 ) is introduced into the punctum perpendicular to the ...
... over the sac area or syringing with saline( Fig.4). Upper punctum is preferred for probing to prevent any damage to the lower punctum during the manipulation. Punctum is dilated with Nettleship dilator (Fig.5a) and then Bowman probe ( size0 or 00 ) is introduced into the punctum perpendicular to the ...
Adherent ocular bandage for clear corneal incisions used in cataract
... There has been much debate about whether clear corneal incisions (CCIs) are self-sealing and whether they increase the risk for endophthalmitis in cataract surgery over that with older-generation incisions, such as scleral tunnels.1–4 The suggested mechanism for endophthalmitis is that tear-film con ...
... There has been much debate about whether clear corneal incisions (CCIs) are self-sealing and whether they increase the risk for endophthalmitis in cataract surgery over that with older-generation incisions, such as scleral tunnels.1–4 The suggested mechanism for endophthalmitis is that tear-film con ...
Chapter 13: Eye Injuries and Disorders
... Over time, this may lead to a shadow in any part of the visual field. Left untreated, this can spread to involve the entire visual field within a short period of time. Surgical intervention can help to preserve vision, so prompt evacuation must ensue shortly after initial symptoms are noted. ...
... Over time, this may lead to a shadow in any part of the visual field. Left untreated, this can spread to involve the entire visual field within a short period of time. Surgical intervention can help to preserve vision, so prompt evacuation must ensue shortly after initial symptoms are noted. ...
LASIK: Practical Pearls
... lasers, as they require a perfectly horizontal plane of the approaching cornea and usually adjust for the x- and y-axis and up-down. A similar principle should be applied to patients with large thoracic cavities. This may result in the head appearing tilted upward, toward the surgeon. An extra pillo ...
... lasers, as they require a perfectly horizontal plane of the approaching cornea and usually adjust for the x- and y-axis and up-down. A similar principle should be applied to patients with large thoracic cavities. This may result in the head appearing tilted upward, toward the surgeon. An extra pillo ...
Dry Eyes / Tear Deficiency
... • Use of cyclosporin (Restatsis) or topical steroids can be helpful in reducing the inflammation associated with dry eyes. Restasis can be used for prolonged periods of time. Topical steroids are generally not used, except in a burst since if they are used for prolonged periods of time, they can be ...
... • Use of cyclosporin (Restatsis) or topical steroids can be helpful in reducing the inflammation associated with dry eyes. Restasis can be used for prolonged periods of time. Topical steroids are generally not used, except in a burst since if they are used for prolonged periods of time, they can be ...
Effects of the Pulsed Electron Avalanche Knife on Retinal Tissue
... through the vitreous after removal of cornea, lens, and iris with the use of 100-nanosecond pulses at 50 µJ with a repetition rate of 20 Hz. This energy level is near the minimum required to produce a full-thickness retinal cut. Fifteen albino rabbits weighing 3.0 to 3.5 kg were used in accordance w ...
... through the vitreous after removal of cornea, lens, and iris with the use of 100-nanosecond pulses at 50 µJ with a repetition rate of 20 Hz. This energy level is near the minimum required to produce a full-thickness retinal cut. Fifteen albino rabbits weighing 3.0 to 3.5 kg were used in accordance w ...
Peter R. Andrews, MD Eye Care Center of Northern Colorado
... Most frequent procedure 2011: 8,071 of 46,196 Transplants in U.S. 80% to 90% Successful ...
... Most frequent procedure 2011: 8,071 of 46,196 Transplants in U.S. 80% to 90% Successful ...
Glaucoma - I Care Eye Care
... they may find it difficult to move around without bumping into things or to see moving objects to the side. Primary open-angle glaucoma By far the most common type, primary open-angle glaucoma develops gradually and painlessly. Since there are no early warning signs, it can slowly destroy your visio ...
... they may find it difficult to move around without bumping into things or to see moving objects to the side. Primary open-angle glaucoma By far the most common type, primary open-angle glaucoma develops gradually and painlessly. Since there are no early warning signs, it can slowly destroy your visio ...
A comparison of the ability of three common contact lens solutions
... is susceptible to infection with this bacterium when the defence system of the cornea is compromised. Typically, a patient with bacterial keratitis resulting from a contact lens solution with inferior disinfecting ability will present with ocular symptoms characterised by severe eye discomfort. Pres ...
... is susceptible to infection with this bacterium when the defence system of the cornea is compromised. Typically, a patient with bacterial keratitis resulting from a contact lens solution with inferior disinfecting ability will present with ocular symptoms characterised by severe eye discomfort. Pres ...
A Series of - Staining Grid
... application.5 Because our study was designed to quantify this type of staining, 2hour and 4-hour time periods were chosen as observation times in order to measure staining at its peak. Therefore, it is important that eyecare practitioners evaluate solution-related staining early in the patient’s wea ...
... application.5 Because our study was designed to quantify this type of staining, 2hour and 4-hour time periods were chosen as observation times in order to measure staining at its peak. Therefore, it is important that eyecare practitioners evaluate solution-related staining early in the patient’s wea ...
What`s New and Important in Pediatric Ophthalmology
... refractive error was -4.71 D spherical equivalent. Myopia was seen in 80.43% of eyes. Early laser treatment of high-risk eyes may help to reduce the incidence of these major sequelae of ROP. ROP surgery and ocular circulation. Van Heuven WA, Kiel JW. Eye 2008 Oct; 22(10):1267-72 Visual results follo ...
... refractive error was -4.71 D spherical equivalent. Myopia was seen in 80.43% of eyes. Early laser treatment of high-risk eyes may help to reduce the incidence of these major sequelae of ROP. ROP surgery and ocular circulation. Van Heuven WA, Kiel JW. Eye 2008 Oct; 22(10):1267-72 Visual results follo ...
The Stein Eye Institute Outpatient Surgical Center
... with our state-of-the-art, outpatient surgical center, which opened in February 2015. The center includes advanced mechanisms for precision surgery like the femtosecond laser and intraoperative guidance systems that dramatically improve accuracy and visual results. The facilities were designed speci ...
... with our state-of-the-art, outpatient surgical center, which opened in February 2015. The center includes advanced mechanisms for precision surgery like the femtosecond laser and intraoperative guidance systems that dramatically improve accuracy and visual results. The facilities were designed speci ...
A case of bilateral acute angle closure attack with some unusual
... However, 5-10% of the attacks may affect both eyes simultaneously.1 It presents with a sudden onset of pain or aching on the side of the affected eye. This pain is accompanied by blurred vision or coloured haloes around lights and ocular congestion. Examination shows markedly raised IOP, corneal oed ...
... However, 5-10% of the attacks may affect both eyes simultaneously.1 It presents with a sudden onset of pain or aching on the side of the affected eye. This pain is accompanied by blurred vision or coloured haloes around lights and ocular congestion. Examination shows markedly raised IOP, corneal oed ...
TQ Bank Lab 1
... C. The purpose of this is to allow the left eye to be focused independently of the right eye D. The coarse adjustment knob is for the right eye focus. E. If you still see two images, you have a convergence problem and you’ll need to keep one eye closed. F. Everyone has one dominant eye. You may need ...
... C. The purpose of this is to allow the left eye to be focused independently of the right eye D. The coarse adjustment knob is for the right eye focus. E. If you still see two images, you have a convergence problem and you’ll need to keep one eye closed. F. Everyone has one dominant eye. You may need ...
Quality-Based Procedures Clinical Handbook for Integrated Retinal
... around procedure rates. The Task Force found that wide variation exists in the medical management of retinal diseases, with some LHINs performing up to 4 times more intraocular injections and 6 times more diagnostic tests per 100,000 population than other LHINs. Similarly, wide variation could also ...
... around procedure rates. The Task Force found that wide variation exists in the medical management of retinal diseases, with some LHINs performing up to 4 times more intraocular injections and 6 times more diagnostic tests per 100,000 population than other LHINs. Similarly, wide variation could also ...
The Long-Term Management of Uveitis
... to therapy were equally effective. The big takeaway at 54 months is that there were no surprises, and that the long-term data support what we learned about the importance of local therapy after the initial data read out at 24 months. Dr. Albini: Have the results of MUST changed anyone’s practice in ...
... to therapy were equally effective. The big takeaway at 54 months is that there were no surprises, and that the long-term data support what we learned about the importance of local therapy after the initial data read out at 24 months. Dr. Albini: Have the results of MUST changed anyone’s practice in ...
About PentaVision LLC
... next decade due to the general aging of the population. In addition, fully half of America’s 26 million people afflicted with diabetes over a 20-year period will suffer from diabetic retinopathy. Retinal Physician (RP) covers the latest advances in AMD, diabetic retinopathy, macular edema, retinal v ...
... next decade due to the general aging of the population. In addition, fully half of America’s 26 million people afflicted with diabetes over a 20-year period will suffer from diabetic retinopathy. Retinal Physician (RP) covers the latest advances in AMD, diabetic retinopathy, macular edema, retinal v ...
Cataract
A cataract is a clouding of the lens in the eye leading to a decrease in vision. It can affect one or both eyes. Often it develops slowly. Symptoms may include faded colors, blurry vision, halos around light, trouble with bright lights, and trouble seeing at night. This may result in trouble driving, reading, or recognizing faces. Poor vision may also result in an increased risk of falling and depression. Cataracts are the cause of half of blindness and 33% of visual impairment worldwide.Cataracts are most commonly due to aging, but may also occur due to trauma, radiation exposure, be present from birth, or occur following eye surgery for other problems. Risk factors include diabetes, smoking tobacco, prolonged exposure to sunlight, and alcohol. Either clumps of protein or yellow-brown pigment may be deposited in the lens reducing the transmission of light to the retina at the back of the eye. Diagnosis is by an eye examination.Prevention includes wearing sunglasses and not smoking. Early on the symptoms may be improved with eyeglasses. If this does not help, surgery to remove the cloudy lens and replace it with an artificial lens is the only effective treatment. Surgery is only needed if the cataracts are causing problems. Surgery generally results in an improved quality of life. Cataract surgery is not easily available in many countries, which is especially true of women.About 20 million people globally are blind due to cataracts. It is the cause of about 5% of blindness in the United States and nearly 60% of blindness in parts of Africa and South America. Blindness from cataracts occurs in about 10 to 40 per 100,000 children in the developing world and 1 to 4 per 100,000 children in the developed world. Cataracts become more common with age. About half the people in the United States have had cataracts by the age of 80.