An improved method of fitting resultant prism in treatment of two-axis strabismus.
Arch Ophthalmol
; 95(7): 1255-7, 1977 Jul.
Article
em En
| MEDLINE
| ID: mdl-880085
ABSTRACT
A new chart determines resultant prism power and angle when correction of combined horizontal and vertical deviation with a single prism, set at an angle intermediate between horizontal and vertical, is desired. The chart is based on a derivation so weighted as never to permit a vertical error greater than one tenth as large as the associated horizontal error, with use of commercially available sizes of plastic Fresnel-type prisms. This weighting takes into account differences in horizontal and vertical fusional reserves. A compass rose facilitates proper alignment of the prisms.
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Base de dados:
MEDLINE
Assunto principal:
Ortóptica
/
Estrabismo
Limite:
Humans
Idioma:
En
Revista:
Arch Ophthalmol
Ano de publicação:
1977
Tipo de documento:
Article