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Eye pathology and low vision aids.

The primary cause of impaired vision was retinal pathology for 414 (83%) patients, optic nerve pathology (including glaucoma) for 33 patients (7%), other pathology for 53 (11%) patients. The following optical aids were prescribed: 35 distant spectacle corrections, 159 high-add bifocals, five high-add trifocals, 52 full-size magnifying spectacles, 102 half-eye magnifying spectacles, four stand magnifiers, and 44 paperweight type magnifiers. Of 193 patients evaluated, 122 (63%) were considered to have success with the aid prescribed.

Aged↗

Low vision: how to assess and treat its emotional impact.

For many older adults facing visual loss, the frustration and distress that makes life's activities difficult or impossible may lead to clinically significant emotional problems. Patients may feel a loss of independence and control, poor self-esteem, and strained social relationships. Clinically, the most common emotional problems related to vision loss are adjustment disorder and major depressive episode. For patients with adjustment disorder, counseling or psychotherapy is recommended for both the patient and family members. Patients with major depression must be evaluated and referred for more in-depth psychiatric evaluation and treatment. Resolution of these disorders is important before a patient can pursue adequate rehabilitation.

Adaptation, Psychological↗

Low-vision aids.

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Humans↗

Correcting low vision in aphakic children.

There are many children who have subnormal vision in spite of successful cataract surgery and aphakic spectacle lenses. There are children who have lens opacities for whom the state of aphakia would not be an improvement. Careful evaluation of functional vision, careful refraction, and the prescription of high adds or other optical devices are part of complete ophthalmological care for every one of these children. The dioptric strength of the reading add is determined by the functional reading vision and the calculation of the reciprocal of the visual acuity. It is also important to realize that many children who have lens opacities do not require special aids; functional vision is adequate until their accommodative reserve wanes with age. Continuous-wear contact lenses may eventually replace spectacle corrections for the aphakic child.

Adolescent↗

[Functional improvement after vision rehabilitation in low monocular vision after myopic macular degeneration and retinal detachment].

PURPOSE: We present a case of a 62 year-old woman, with a single eye functional vision (VA of 0.16) who improved her vision after following a vision rehabilitation program, which included optical and non-optical devices for daily performance. CONCLUSIONS: A correct optometric evaluation and a training program are key factors to improve quality of life in low vision patients, whose ocular pathology allows no other treatment.

Female↗

The causes and profile of visual loss in an onchocerciasis-endemic forest-savanna zone in Nigeria.

In an onchocerciasis-endemic forest-savanna mosaic zone of southeastern Nigeria, blindness was found in 5.4% of 1,217 people who voluntarily attended for examination from a population of 14,000. Apart from cataract, the most important causes of blindness in the area were eye diseases that are known to be associated with onchocerciasis. Refractive error, although a non-onchocerciasis-related eye defect, was the number one cause of visual loss found in the study. The causes of blindness in our examined population are similar to what is found in onchocerciasis-endemic areas of the savanna zone and dissimilar from those found in the forest zone. In this forest-savanna mosaic zone, the prevalence of onchocerciasis was higher in the respondents with poor vision than in those with adequate vision. Similarly, low vision was found to be more common in people with high microfilarial loads, but people with high loads also tended to be older than those with moderate or low microfilarial loads, which might suggest that low vision was only a function of age. Nonetheless, analysis of our data shows evidence of an association between low vision and microfilarial load in adults aged 60 years and above. It is concluded that onchocerciasis in the forest-savanna mosaic zone of Nigeria has the features until recently associated only with savanna onchocerciasis, and that this should be taken into consideration in planning and executing onchocerciasis control programs in the area.

Adolescent↗