Long-sightedness. A vision defect in which the lens of the eye is unable to accommodate sufficiently to throw the image of near objects onto the retina. It is caused usually by shortness of the eyeball rather than any fault in the lens system. The subject requires spectacles with converging lenses to bring the image from behind the retina back on to its surface.
Hypermetropia.
Long-sightedness. A vision defect in which the lens of the eye is unable to accommodate sufficiently to throw the image of near objects onto the retina. It is caused usually by shortness of the eyeball rather than any fault in the lens system. The subject requires spectacles with converging lenses to bring the image from behind the retina back on to its surface (see illustration).
Hypermetropia
- transmission primary
- transmission rate
- transmission time
- transmissivity
- transmit-receive switch
- transmittance
- transmitted-carrier transmission
- transmitted-reference spread spectrum
- transmitter
- transmitting antenna
- transmutation
- transnational capitalist class
- transnational corporation
- transnationality
- transnational municipal networks
- trans-Neptunian object
- trans-orogen basin
- Trans-Pacific Partnership
- transparency
- transparency, atmospheric
- transparent
- transparent GIF
- transparent policy measures
- transpiration
- transplant