1/310. Cataracts, bilateral macular holes, and rhegmatogenous retinal detachment induced by lightning.PURPOSE: To report ocular injuries, including a unilateral rhegmatogenous retinal detachment, induced by lightning. METHOD: Case report. A 30-year-old man was injured by lightning. RESULTS: The patient developed a severe decrease in visual acuity in both eyes, an afferent pupillary defect in his left eye, bilateral cataracts, posterior vitreous detachments, macular holes, and an inferotemporal retinal detachment with an associated flap retinal tear in his left eye. CONCLUSIONS: This is a case of bilateral cataracts, posterior vitreous detachments, macular holes, and a unilateral retinal detachment associated with lightning. We postulate that the heating of the retinal surface, the concussive forces on the eye, and a sudden lateral contraction of the attached vitreous resulted in bilateral posterior vitreous detachments and a unilateral peripheral retinal break.- - - - - - - - - - ranking = 1keywords = visual (Clic here for more details about this article) |
2/310. siderosis bulbi resulting from an intralenticular foreign body.PURPOSE: To report a case of siderosis bulbi that resulted from a small intralenticular foreign body. METHOD: Case report. RESULTS: A 36-year-old man with normal visual acuity and a peripheral intralenticular iron foreign body in the left eye was treated conservatively. Nine weeks after the injury, he had ocular signs of siderosis bulbi, with changes in the electroretinogram. A clear lens aspiration with removal of the foreign body was performed. After removal of the iron foreign body, no progression or regression of the ocular signs of siderosis bulbi has occurred, and the electroretinogram has not changed over a 2-year period. CONCLUSIONS: Even in the presence of good vision, a patient with an intralenticular ferrous foreign body should be followed closely, and the foreign body should be removed before irreversible siderosis bulbi occurs.- - - - - - - - - - ranking = 1keywords = visual (Clic here for more details about this article) |
3/310. Stability of vision during space flight in an astronaut with bilateral intraocular lenses.PURPOSE: To report excellent and stable vision in an astronaut during space flight after bilateral cataract surgery with intraocular lenses. methods: A 60-year-old physician mission specialist astronaut developed cataracts and underwent phacoemulsification with insertion of one-piece polymethylmethacrylate intraocular lenses that had 6-mm optics bilaterally. Several months later, he flew on a space shuttle mission. Ocular examinations were performed before and after the mission, and the patient was questioned about visual changes during flight. RESULTS: Ocular examinations demonstrated stable bilateral posterior chamber intraocular lenses. Our subject reported excellent vision during liftoff, 18 days of microgravity, changes in cabin pressure, and reentry. CONCLUSION: Results suggest that intraocular lenses are safe, effective, and well tolerated during space flight.- - - - - - - - - - ranking = 1keywords = visual (Clic here for more details about this article) |
4/310. Early surgery and visual correction of an infant born with unilateral eye lens opacity.A healthy neonate born with unilateral cataract was operated upon on life Day 4. Visual correction and testing were initiated promptly. Resolution showed continuous improvement in the normal eye, with no improvement noted in the operated eye until adequate visual correction was provided. Following correction there was prompt marked improvement of visual resolution.- - - - - - - - - - ranking = 6keywords = visual (Clic here for more details about this article) |
5/310. Posterior capsule opacification and wrinkling in a case of capsular bag distension.We describe a complication following anterior neodymium: YAG laser capsulotomy in a case of capsular bag distension which was diagnosed 21 months after cataract extraction with phacoemulsification and in-the-bag lens implantation. An anterior neodymium: YAG capsulotomy was performed and immediately after this the posterior capsule collapsed and wrinkled, causing a marked decrease in visual acuity that necessitated posterior neodymium: YAG capsulotomy.- - - - - - - - - - ranking = 1keywords = visual (Clic here for more details about this article) |
6/310. Complete capsulorhexis opening occlusion despite capsular tension ring implantation.An 89-year-old woman and an 86-year-old woman had continuous curvilinear capsulorhexis, phacoemulsification, and implantation of a silicone plate-haptic intraocular lens. Because of presumed weak zonules (high age, pseudoexfoliation), a poly(methyl methacrylate) capsular tension ring was also implanted. Despite this, both patients reported deterioration in visual acuity that was the result of complete occlusion of the anterior capsule opening by fibrotic tissue 4 and 3 months postoperatively, respectively.- - - - - - - - - - ranking = 1keywords = visual (Clic here for more details about this article) |
7/310. Ocular injury caused by an air bag for a driver wearing eyeglasses.BACKGROUND: Although air bags have been shown to reduce the number of fatalities and serious injuries caused by motor vehicle accidents, there have been many reports of air bag-related ocular injuries. We recently treated air bag-related corneal laceration in a patient wearing eyeglasses at the time of a motor accident. CASE: A 38-year-old Japanese man was driving a car at approximately 40 km per hour when he struck a stopped 2-ton truck. He was wearing a three-point lap-shoulder seat belt. At impact, the driver's-side air bag deployed and struck the man on the left side of his face. He was wearing eyeglasses with glass lenses, and the air bag broke the left lens of his eyeglasses, and glass fragments lacerated his cornea. OBSERVATIONS: External examination showed multiple superficial abrasions of the skin and ecchymosis of the left side of his face. Slit-lamp examination of his left eye showed corneal laceration and hyphema. The lens had opacities and was covered with fibrin membrane. Repair of the corneal laceration and phacoemulsification of the lens were performed. Six months later, his best corrected visual acuity was 20/20 in the left eye. CONCLUSIONS: As cars are increasingly equipped with air bags, reports of air bag-related eye injuries have increased. To our knowledge, this is the first reported case of corneal laceration caused by a shattered lens in an air bag-related injury. Ophthalmologists should caution patients about the danger of eye injuries in air bag-equipped cars, and thought should be given to improving the materials for eyeglasses.- - - - - - - - - - ranking = 1keywords = visual (Clic here for more details about this article) |
8/310. Ophthalmic manifestation of congenital protein c deficiency.Under normal conditions activated protein C is a natural anticoagulant that cleaves 2 activated coagulation factors, factor va and factor viiia, thereby inhibiting the conversion of factor X to factor xa and of prothrombin to thrombin. Additionally, activated protein C enhances tissue-plasminogen activator-mediated fibrinolysis by inhibition of plasminogen activator inhibitor-1. This results in an increase in circulatory plasminogen activator levels. protein c deficiency, a genetic or acquired thrombophilic abnormality, has been demonstrated to predispose to episodes of potentially blinding and lethal thromboembolic events. Heterozygous-deficient subjects usually remain asymptomatic until adolescence or adulthood. In homozygous-deficient patients, protein C activity is usually less than 1% (reference range, 70%-140%), resulting in thromboembolism as early as in the neonatal period. The major clinical symptoms in affected newborn infants have been purpura fulminans, vitreous hemorrhage, and central nervous system thrombosis. The age of onset of the first symptoms has ranged from a few hours to 2 weeks after birth, usually after an uncomplicated full-term pregnancy and delivery. In contrast to the genetic form, acquired neonatal protein c deficiency occurs particularly in ill preterm babies. Typical complications of prematurity such as respiratory distress syndrome, necrotizing enterocolitis, and neonatal sepsis may also be present. In the medical literature, there are only a few reports of homozygous protein c deficiency in neonates. We present 2 cases of homozygous protein c deficiency with ocular and extraocular manifestation.- - - - - - - - - - ranking = 0.0031150771644104keywords = contrast (Clic here for more details about this article) |
9/310. Electric cataract: a case report and review of the literature.A case of electrically induced cataract in both eyes in a 12-year-old boy, after a high-voltage electric shock, is reported. He sustained skin burns on the neck, chest, abdomen, and inner left arm. The cataract developed first in the left eye and later on in the right eye. The child regained normal vision in both eyes after cataract extraction and aphakic correction with spectacles. The need for awareness of the possibility of this complication and screening of all cases of electrical injuries is stressed. The majority of cases respond well to surgery, but final visual acuity will depend on the other ocular damage due to electrical current. The clinical features and pathogenesis of this condition are briefly reviewed.- - - - - - - - - - ranking = 1keywords = visual (Clic here for more details about this article) |
10/310. Traumatic cataract presenting with unilateral nasal hemianopsia.A 56-year-old man developed a nasal field defect in his left eye 3 months after a traumatic accident. An examination showed a posterior subcapsular cataract in the left eye with no neurologic deficits. Humphrey 24-2 visual field testing revealed a nasal hemianopsia in the left eye. After cataract extraction and intraocular lens implantation, the patient's visual field returned to normal. This case shows that a cataract can present with a localized visual field deficit, which may be corrected by cataract extraction.- - - - - - - - - - ranking = 3keywords = visual (Clic here for more details about this article) |
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