| 释义 |
Definition of fovea in English: fovea(also fovea centralis) nounPlural foveae ˈfəʊvɪəˈfoʊviə Anatomy A small depression in the retina of the eye where visual acuity is highest. The centre of the field of vision is focused in this region, where retinal cones are particularly concentrated. 〔剖〕中央凹（视觉敏感度最高处），视网膜中央凹 Example sentencesExamples - Multiple bodies associated with synovial chondromatosis often adhere to the synovium around the fovea and must be morseled before removal by arthroscopy.
- The fovea creates the most finely detailed vision for such daily tasks as reading, threading a needle, or driving a car.
- The central retina, or macula, and the centermost macula, or fovea, exhibit structural and cellular specializations for fine central acuity.
- When we gaze directly at an object, we hold our eyes in such a position that the image of the object falls on the central, specialized region of the retina - the fovea or macula - where visual acuity and colour vision are best.
- The cones are concentrated in the center of the back of the eye, at its most sensitive region, called the fovea.
Derivativesadjective Anatomy After a few months most of them had recovered fully, but six were left with faint shadows in their central vision corresponding to a small foveal burn. Example sentencesExamples - A plane visible in the foveal field from 5,000 feet would only be visible at 500 feet or less if it's more than five degrees on either side of the foveal field - hardly enough room to take evasive action.
- Ophthalmologic examination with the slit lamp demonstrates the iris pigment defect, as well as retinal hypopigmentation and foveal hypoplasia.
- The computer screen was placed at a distance of 300 cm from the participants to permit the foveal fixation of potential target locations.
- This loss appears to be more accentuated in foveal as opposed to peripheral vision.
adjective -vɪeɪt Anatomy
OriginLate 17th century: from Latin, literally 'small pit'. Definition of fovea in US English: fovea(also fovea centralis) nounˈfoʊviəˈfōvēə Anatomy A small depression in the retina of the eye where visual acuity is highest. The center of the field of vision is focused in this region, where retinal cones are particularly concentrated. 〔剖〕中央凹（视觉敏感度最高处），视网膜中央凹 Example sentencesExamples - The central retina, or macula, and the centermost macula, or fovea, exhibit structural and cellular specializations for fine central acuity.
- The fovea creates the most finely detailed vision for such daily tasks as reading, threading a needle, or driving a car.
- Multiple bodies associated with synovial chondromatosis often adhere to the synovium around the fovea and must be morseled before removal by arthroscopy.
- When we gaze directly at an object, we hold our eyes in such a position that the image of the object falls on the central, specialized region of the retina - the fovea or macula - where visual acuity and colour vision are best.
- The cones are concentrated in the center of the back of the eye, at its most sensitive region, called the fovea.
OriginLate 17th century: from Latin, literally ‘small pit’. |