The phrase "as a glare" is correct and usable in written English.
It can be used to describe something that appears or is perceived in a harsh, bright, or intense manner, often in relation to light or an expression.
Example: "The sun shone down on the water, reflecting as a glare that made it difficult to see."
Alternatives: "like a glare" or "in a glaring manner".
Ceiling-mounted data-projectors directed at whiteboards mounted vertically on the wall resulted in specular reflection from the whiteboard, visible as a glare spot with luminance high enough to cause discomfort and disability glare.
A gadget reviewer might treat this as a glare problem (which is shared with iPad's smaller predecessors, but again, I'm mostly reading on my iPod Touch below ground), and an app developer might want to consider this as a design problem, but I'm more interested in what the iPad's reflective properties mean for reading.
Some see its continued existence as a glaring symbol of a failed education system.
But Erica Jong's sexual adventure Fear of Flying (1973) strikes me as a glaring omission.
Coughlin pointed to the Giants' struggles on third down as a glaring deficiency, particularly in the second half.
Instead, his story has grabbed headlines here as a glaring reminder of how far Greece has to go to become a country that encourages new business ventures.
Anyone handicapping India's chances of becoming one of the world's most important economies inevitably points to infrastructure as a glaring weakness.
Saying that the Soviet Union "repossessed" the Baltic states in the secret Hitler-Stalin pact in 1939 would strike most people there as a glaring misreading of history.
The Labour leader described it as a "glaring omission" and claimed it was because the Tories were planning "massive" cuts in the next five years, labelling this "the plan that dare not speak its name".
The incumbent said the plan left Northern Irish parties as a glaring omission and the Democratic Unionist Party, which has eight MPs in the Commons, has already complained at its exclusion when parties with a smaller Parliamentary presence were invited.
