heterotropia

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strabismus

or squint or heterotropia

Failure of the eyes to align properly to focus on an object. The affected eye may deviate in any direction, including inward (cross-eye) or outward (walleye). Problems with photoreception or the nerves that relay images to the brain cause a constant degree of deviation (comitant); defects in the nerves that control the muscles that move the eyes cause deviation that varies with the direction of gaze (noncomitant). Both types impede development of a child's ability to focus the eyes and merge images from the two retinas into one (fusional reflex). The brain suppresses the image from the deviant eye, which may become functionally blind. Treatment may involve exercises to strengthen the weak eye or surgery or both.

heterotropia [‚hed·ə·rō′trō·pē·ə]

(medicine)

strabismus

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No references found			heterostemony Heterostraci heterostyly heterosuggestion Heterotardigrada heterotaxia heterothallic heterotherm heterotic superstring theory Heterotopia heterotopic heterotopic epithelium heterotopic faces heterotopic ligands heterotopic pregnancy heterotopic transplantation Heterotrichida Heterotrichina heterotrichous heterotroph Heterotrophic Bacteria heterotrophic ecosystem heterotrophic effect Heterotrophic Organisms heterotrophic succession heterotropia heterotropic enzyme heteroxenous heterozooid Heterozygosity Heterozygote heterozygote advantage heterozygote superiority heterozygous Hetman Hetmanate HETP Hettangian Hettinger County Hettner, Alfred heulandite Heulinger equations Heurigen Parties Heuristic heuristic algorithm heuristic method heuristic program heuristic routine heuristics heuristics testing Heuser, Herman J.			heterotrichous Heterotrimeric gtp-binding proteins Heterotrimeric gtp-binding proteins Heterotropal heterotroph heterotroph heterotroph heterotrophic heterotrophic heterotrophic Heterotrophic Bacteria heterotrophic ecosystem heterotrophic effect Heterotrophic Organisms heterotrophic ossification heterotrophic ossification Heterotrophic Plate Count heterotrophic succession heterotrophically heterotrophically heterotrophically heterotrophies heterotrophies heterotrophies Heterotrophs Heterotrophs Heterotrophs heterotrophy heterotrophy heterotrophy heterotropia heterotropic enzyme heterotypic heterotypic heterotypic chromosomes heterotypic cortex heterotypic mitosis heterotypic vaccine heterotypic vaccine heterotypic vaccine heterotypical heterotypical heterotypical chromosome Heterousian heteroxanthine heteroxenous heteroxenous heteroxenous apicomplexan protozoa heteroxenous apicomplexan protozoa heteroxenous parasite heterozooid heterozygosis heterozygosis heterozygosity heterozygosity heterozygosity heterozygote heterozygote heterozygote Heterozygote advantage heterozygote detection

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