achromatic lens
astigmatic lens
burning glass
camera
coated lens
concave lens
concavo-convex lens
condenser
convex lens
eyeglass
eyepiece
glass
hand lens
lens
magnifying glass
meniscus
object glass
objective
objective prism
ocular
prism
reader
reading glass
telephoto lens
toric lens
varifocal lens
zoom lens
scientific instrument
microscope
scope
telescope
achromatic
aspherical
astigmatic
auto-focus
axisymmetric
dividual
eye-like
fire-eye
fisheye
hydrogel
intraocular
multi-element
non-cpu
one-meter
pupilless
soft-focus
spy-eye
ten-power
three-element
wire-framed