Visual acuity, reduced

Fig. 8.2 Left eye. Presurgery aspect. Visual acuity reduced to a good localization of the Ught. White cornea, ulcerated and neo-vascularized. Complete Umbus deficiency related to a 360° destruction of the Umbus...

Loss of visual acuity, reduced color vision, and altered light adaptation developed in a 42-year-old woman 2 weeks after she started to take a high protein diet and melatonin 1 mg/day (17). She had also been taking sertraline for the past 4 years. Her vision improved within 2 months of stopping the melatonin and the high protein diet. 

Drusen ablation may help patients with multiple large drusen in both eyes that have not progressed to neovascular macular degeneration. These laser treatments may lead to resolution of the drusen and improved visual acuity. However, it is not clear if progression to choroidal neovascular membranes and neovascular macular degeneration is reduced.23 There is a possibility that the laser treatments may induce choroidal neovascularization and retinal atrophy.22... 

Photodynamic therapy uses non-thermal red light to activate verteporfin, which produces reactive oxygen species that locally damage the neovascular endothelium.24 Verteporfin treatment reduces the risk of loss of visual acuity and legal blindness over 1 to 2 years. Long-term results are not yet available. Severe photosensitivity for 3 to 5 days after the procedure is common and some patients experience a severe loss of vision. Eventually, most patients have some visual recovery. This procedure requires multiple treatments over time.22... 

Components of the tear attach to contact lenses by electrostatic and van der Waals forces and build up to form deposits. Deposits on the surface and in the lens matrix may result in reduced visual acuity, irritation, and in some instances serious ocular complications. The composition of deposits vary because of the complexity of an individual s ocular physiology-pathology. Lysozyme is a major component of soft lens deposits, especially found on high-water-content ionic lenses [312]. Calcium [313] and lipids [314] are infrequent components of deposits, occurring as inorganic salts, organic salts, or as an element of mixed deposits, or as a combination thereof [315,316]. 

Cilotti, P. (1963). The action of thioctic acid and helenien on visual acuity in reduced lighting in normal subjects (Italian). Ann. Ottalmol. Clin. Ocul. 89 1000-1004. 

To provide a more complete profile of performance skills, we needed to measure psychomotor function as well as scores on paper and pencil tasks. After discarding a small pegboard test used in the 1960 studies, we replaced it with a large flat board that rested on a table and used much larger holes and pegs. This reduced the need for the visual acuity required to place circular blocks into matching holes as rapidly as possible. 

There are several reports of noteworthy extrapulmonary effects in laboratory animals with concentrations of about 0.2 ppm. These include reduced voluntary activity, chromosomal aberrations in circulating lymphocytes of hamsters, increased neonatal mortality, and greater incidence of jaw abnormalities in offspring of ozone-exposed mice. The mechanisms of these reported effects and whether th are due to direct actions of absorbed ozone, some secondary reaction product, or secondary responses to the stress of local actions in the lung are largely unknown. However, reported analogous effects in humans exposed to ozone, such as changes in visual acuity and headache (possibly related to the reduced activity in... 

Ocular formulations of pilocarpine have caused visual blurring that may result in decreased visual acuity, especially at night and in patients with central lens changes, and impairment of depth perception. Advise caution while driving at night or performing hazardous activities in reduced lighting. 

Ophthalmic - Transient stinging and burning tearing ciliary spasm conjunctival vascular congestion temporal, peri-, or supra-orbital headache superficial keratitis-induced myopia blurred vision poor dark adaptation reduced visual acuity in poor illumination in older individuals and in individuals with lens opacity. 

Ophthalmic corneal swelling, dry eye, eye pain, eyelid swelling, headache, red eye, reduced visual acuity, altered taste... 

Flatulence altered taste pain inflammation or swelling in calves, hands, or shoulder chest pain difficulty breathing palpitations edema tendon pain Ophthalmic-. Corneal staining, keratitis, allergic reaction, eyelid swelling, tearing, reduced visual acuity... 

Ophthalmic (6%-l%) conjunctival irritation, reduced visual acuity, dry eye, keratitis, eye pain, ocular itching, swelling of tissue around cornea, eye discharge, fever, cough, pharyngifis, rash, rhinifis Rare (1 %)... 

Corneal edema, eye discharge, eye irritation, eye pain, increased intraocular pressure, ocular discomfort, punctate keratitis, reduced visual acuity, visual disturbance, vitreous floater, vitreous opacities... 

This is the case of a monophthalmic left eye patient wounded by a grade 4 burn due to a strong base. Two TK have not succeeded because of successive rejections. The visual acuity of the left eye was reduced to a good localization of the light. The cornea was white. 

There have been repeated reports of ophthalmic complications from tamoxifen, including irreversible retinopathy with seriously reduced visual acuity, retractile opacities, cystoid macular edema, retinal yellow-white dots, and keratopathy (SEDA-6, 356 SEDA-7, 391 SEDA-16, 466). 

A non-obese 6-year-old girl with Ullrich-Turner syndrome developed headache, vomiting, and blurred vision, with papilledema and increased cerebrospinal fluid pressure 5 months after starting somatropin 0.9 IU/kg/week (30). The cerebrospinal fluid pressure normalized after somatropin was withdrawn, and increased again when therapy was restarted. Her visual acuity was reduced to less than 30% in the right eye. 

An obese 31-year-old man developed non-proliferative retinopathy and macular edema with reduced visual acuity after 14 months therapy, which improved after somatropin was withdrawn. 

GCAP1(L151F) mutations affecting the EF4-hand motif linked to dominant cone dystrophy and cone-rod dystrophy were identified in two unrelated families. In one family (Sokal et al., 2004), affected family members experienced dyschro-matopsia, hemeralopia, and reduced visual acuity by the second to third decade... 

CORDX usually begins within the first two decades of life and is progressive. Clinical features of the disorder include reduced visual acuity, poor colour vision, fundus abnormalities, central scotomas in the visual field, photophobia, myopia and low b-waves in ERG recordings (Jacobson et al., 1989 Brown et al., 2000). A single... 

To increase visual acuity by reducing chromatic aberration... 

Carcinogen in rats. Adverse effects in patients include nausea, vomiting, hepatic toxicity, reduced visual acuity, and blood abnormalities. Mutagenic in the Ames test and teratogenic in mice and rats. Reasonably anticipated to be a human carcinogen.1,4... 

In humans, the conversion of ALA to EPA and DHA is extremely slow, with only about 15% and 5% of ALA converted to EPA and DHA, respectively (Cunnane, 1995). This conversion appears to be affected by a number of dietary factors. For example, a diet rich in linoleic acid has been found to reduce this conversion by as much as 40% (Emken, 1995). In addition, saturated and lruns fatty acids also interfere with ALA desaturation and elongation steps (Ackman and Cunnane, 1992 HouwelingenandHornstra, 1994). DHA can be reconverted back to EPA, although in humans it appears to be a very minor pathway (Brossard et al., 1996). DHA appears to play an important in the brain and retina and was found to be incorporated during the last trimester of pregnancy and the first year of life. Visual acuity was shown to develop much faster in preterm infants fed formulas rich in DHA compared with standard infant formulas low in long chain n-3 fatty acids (Jorgensen et al., 1996). 

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