After only a superficial examination or review
"At first glance" is a correct and usable phrase in written English. It is usually used to describe an initial impression or an initial perception of something. For example: At first glance, the painting seemed to be a simple landscape, but as I studied it further, I realized it contained hidden symbolism.
At first glance, the….
At first glance, they're….
At first glance, perhaps not.
At first glance, that's odd.
At first glance, the idea seems great.
At first glance, JPMorgan looks unfairly penalized.
At first glance, unguessable.
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.
Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com