This brand name is a playful take on the word "retina".
The word "retiny" contains only six letters and three syllables. Leading companies using three syllable names include Microsoft, Adidas and McDonald's.
This domain was first registered in October 2016. Older domains have an advantage when ranking in search engines.
Retiny.com is a dot-com domain. Dot com domains are the most valuable domain extension in the world, used by famous websites like youtube.com. Once you own a dot-com, it will be much easier to rank for your own name in Google.