Journal of the Korean Ophthalmological Society 1974;15(2):153-158.
Published online February 1, 1974.
Specific Spectacles.
Byung Il Park
Department of Ophthalmology, Chonnam University, Medical School, Kwangju, Korea.
안과임상학보 : 굴절이상에 대하여 ; 특수안경
박병일 ( Byung Il Park )
Abstract
The improvement of the visual acuity and protection of the eye is the main purpose of wearing spectacles. It was not until in 1270 that it was introduced to the people and at that time only the plus lens was utilized for presbyopia. Specific spectacles is regarded, in this report, as indicating those whose appllcation improves the visual acuity and those used for myopia, hyperopia, astigmatism, and presbyopia are excluded. Some of these epecific spectacles are introduced here. 1. Hemianopsia spectacles. 2. Ambryopic spectacles (Low vision aids). 3. Ptosis Crutch spectacles. 4. Phakic-aphakic (P-A) spectacles. 5. Fresnel membranous lenses. 6. Varilux lenses. 7. Spectacles for widening restricted visual fields. 8. Contact lenses. 9. Pseudophakia (Binkhorst lenses).


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