| clear(adjective, visual, sound, physical, nervous) | |
| clear eyes | |
| cornea | |
| distinct(adjective, visual, sound, physical, nervous) | |
| exteroception | |
| eyeglass | |
| eyelid | |
| goggle eyes | |
| gustative(adjective, visual, sound, physical, nervous) | |
| gustatory(adjective, visual, sound, physical, nervous) | |
| hearable(adjective, visual, sound, physical, nervous) | |
| heart | |
| imaged(adjective, visual, chromatic, graphic, noticed) | |
| iris | |
| lid | |
| lingual(adjective, visual, sound, physical, nervous) | |
| naked eye | |
| neural(adjective, visual, sound, physical, nervous) | |
| neurological(adjective, visual, sound, physical, nervous) | |
| nictitating membrane |
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| APA | Smart Define. (2015). optic thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/optic/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "optic thesaurus" https://smartdefine.org/optic/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, optic thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/optic/thesaurus/synonyms>. |
| MLA | Smart Define. "optic thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/optic/thesaurus/synonyms> |