Part of the eye - Crossword Clue, Answer and Explanation

'part of the eye' is the definition.
(I know this)

This is all the clue.

(Other definitions for lens that I've seen before include "Optical device using light to form images" , "Piece of glass, usually curved" , "Camera component" , "Refracting device" , "feature of camera" .)

I've seen this clue in the Penny Press, the Sydney Morning Herald, The Guardian, The Telegraph, the USA Today, The Mirror, the Newsday, The New York Times, The Times and The Sun.

'part of the eye' is the definition.
('cone' is part of 'eye')

This is the entire clue.

(Other definitions for cone that I've seen before include "Road works marker" , "Solid figure" , "Road furniture!" , "it may hold ice-cream" , "Portable marker for lines on road" .)

I've seen this clue in the Penny Press, the Sydney Morning Herald, The Guardian, The Telegraph, the USA Today, The Mirror, the Newsday, The New York Times, The Times and The Sun.

'part of the eye' is the definition.
(I know this)

This is all the clue.

(Other definitions for uvea that I've seen before include "bit of a looker" , "The pigmented layer of the eye" , "part of eye be seen" , "Part of the eyeball which houses the iris" , "bit of mince pie!" .)

I've seen this clue in the Penny Press, the Sydney Morning Herald, The Guardian, The Telegraph, the USA Today, The Mirror, the Newsday, The New York Times, The Times and The Sun.

'part of the eye' is the definition.
(I know this)

This is all the clue.

(Other definitions for retina that I've seen before include "Light-sensitive membrane in the eye" , "part of the water pump" , "Eye's membrane" , "Light-sensitive eye lining" , "Membrane that can become detached" .)

I've seen this clue in The Independent, the Penny Press, the Sydney Morning Herald, The Telegraph, The Guardian, the USA Today, the Newsday and The Times.

'part of the eye' is the definition.
(I know this)

This is all the clue.

(Other definitions for cornea that I've seen before include "Transparent part of the eye" , "Transparent outer covering of eyeball" , "bit of a looker" , "Body part" , "Eyeball membrane" .)

I've seen this clue in The Independent, the Penny Press, the Sydney Morning Herald, The Telegraph, The Guardian, the USA Today, the Newsday and The Times.

'part of the eye' is the definition.
(I know this)

This is the entire clue.

(Other definitions for pupil that I've seen before include "A student at school or eye part" , "Scholar" , "One being taught" , "Learner at educational institution" , "one may see through!" .)

I've seen this clue in The Guardian, The Telegraph and the Universal.

Part of the eye (4)