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NORMAL VALUES IN CLINICAL ELECTROOCULOGRAPHY
Author(s) -
KROGH ERIK
Publication year - 1976
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.1976.tb01270.x
Subject(s) - ophthalmology , electrooculography , correlation , refractive error , optometry , medicine , mathematics , audiology , optics , physics , eye disease , eye movement , geometry
The following EOG potential and time parameters from 72 normal subjects were analysed: base value B , dark trough D, light peak L, light induced potential rise L‐D, interval between beginning of dark adaptation and occurrence of dark through d and interval between dark trough and light peak I. Their relations to sex, age, pupillary diameter, degree of iris pigmentation, refractive error, axial length, corneal curvature and diameter, ocular protrusion and interpupillary distance were assessed. Right eye and left eye samples of the EOG parameters were congruent, although individual differences were sometimes appreciable. The levels of B and D were higher in the female half of the sample. A positive correlation existed between age and D level. L‐D was negatively correlated to the degree of refractive error and positively correlated to the ocular protrusion. A positive correlation was found between d and the four potential parameters, and there was a positive correlation between age and I. Practical consequences of the statistical analysis relating to the interpretation oi such EOG data are discussed.