Experts study glass eye, perhaps (10)
I believe the answer is:
prosthesis
'glass eye perhaps' is the definition.
(glass eye is a kind of prosthesis)
'experts study' is the wordplay.
'experts' becomes 'pros' (professionals).
'study' becomes 'thesis' (I can't justify this - if you can you should believe this answer much more).
'pros'+'thesis'='PROSTHESIS'
Can you help me to learn more?
(Other definitions for prosthesis that I've seen before include "False part" , "what can help a handicapped person" , "This may supply missing part" , "Part replacement" , "artificial substitute" .)