I did some work in ophthalmology but I am not an expert. I remember looking at clear gels but only have the reference and alas not the article anymore. I think this is the article you should try to obtain, it describes the development of clear gels like WTG-127:
Wada T,Toyoda Y,Takeuchi M, et al. Precorneal residence of a newly developed reversible thermo-setting, in situ gelling ophthalmic vehicle of WP-934 (Rysmon TG). Atarashii Ganka (J Eye) 1999;16: 1311–1314.
I saw this article but the full text is not available online, i tried reaching out the author, but no response as of yet. Anyways thank you so much, have been trying to make clear gel and quite close to success.