op-, opt-, optico-, opsi-, opso-, -opia, -ops, -opsia, -opsis, -opsy, -optic, -opic, -opy
(Greek: eye[s]; sight; see, vision)
dichromatopsia, dichromatism
The condition, or state, of being dichromatic or exhibiting two colors.
diopter
A unit of measurement for the power of a lens, especially a spectacle lens, equal to the reciprocal of the focal length of the lens in meters.
An exaggerated anxiety of having double vision: Diplopiaphobia can be a result of a feeling of losing one's control of the environment, and is perhaps caused by a muscle imbalance or to a paralysis of certain eye muscles.
dyschromatopsia
1. Deranged vision of colors; color blindness.
2. Disorder of color vision; imperfect color vision.
2. Disorder of color vision; imperfect color vision.
dysmegalopsia
The inability to visualize correctly the size of objects.
They appear larger than they really are.
dysmetropsia
The inability to visualize correctly the size and shape of things.
dysmorphopsia
Defective vision, with distortion of the shape of objects perceived.
dysopia, dysopsia
1. Defective, or incorrect, vision.
2. Pain in the eyes when looking intently at objects.
2. Pain in the eyes when looking intently at objects.
dystopia
1. An imaginary place where everything is as bad as it possibly can be, or a vision or description of such a place.
2. A hypothetical place, state, or situation in which conditions and the quality of life are dreadful.
3. The opposite of what one would expect in a utopian society.
4. In medicine, a malposition, or displacement, of a bodily organ.
2. A hypothetical place, state, or situation in which conditions and the quality of life are dreadful.
3. The opposite of what one would expect in a utopian society.
4. In medicine, a malposition, or displacement, of a bodily organ.
emmetropia
1. The normal refractive condition of the eye in which there is clear focus of light on the retina.
2. An ideal optical condition when parallel light rays come to a focus on the retina.
3. That refractive condition of the eye in which the rays of light are all brought accurately and without undue effort to a focus upon the retina; opposed to hypermetropia (farsightedness), myopia (nearsightedness), and astigmatism; or the refractive condition of the eye in which the rays of light are all brought accurately, and without undue effort, to a focus upon the retina.
3. That refractive condition of the eye in which the rays of light are all brought accurately and without undue effort to a focus upon the retina; opposed to hypermetropia (farsightedness), myopia (nearsightedness), and astigmatism; or the refractive condition of the eye in which the rays of light are all brought accurately, and without undue effort, to a focus upon the retina.
enopsilium
An ingrown eyelash.
erythropsia
1. A chromatopsia in which objects appear tinged with red.
2. An abnormality of vision in which all objects appear to be tinged with red.
2. An abnormality of vision in which all objects appear to be tinged with red.
euopsia
Good, or normal, eyesight.
euphoropsis
The condition whereby people see normally, free of any symptoms or complaints.
euryopia
1. Eyes that are open wide.
2. Abnormally wide opening of the eyes.
2. Abnormally wide opening of the eyes.
Related references to "eye" or "eye part" word families: blepharo-; core-; corneo-; eye, eyes; irido-; lenti-, lens-; lenticulo-; ocelli-; oculo-; ophthalmo-; phaco-; pupillo-; retino-; uveo-.
Cross references of word families that are related directly, or indirectly, to: "appear, visible, visual, manifest, show, see, reveal, look": blep-; delo-; demonstra-; -orama; pare-; phanero-; phant-; pheno-; scopo-; spec-; vela-, veal-; video-, visuo-.
