On a Shabbos afternoon, Shmuel lifted his eyes from a sefer that he was learning, took off his glasses and put his head down to rest for a little bit. When he woke up from his nap and picked up his glasses, he noticed that they were not so clean.
He took out of his pocket a special cloth for cleaning eyeglasses and rubbed the lenses with it.
But to his dismay, the glasses were still dirty.
“They need a wash!” thought Shmuel to himself.
“But how should I dry them now, on Shabbos?” he wondered. “If I’ll dry them with my special cleaning cloth, it will get wet from the water on the glasses and that could be a melacha of Melaben (whitening) - or more specifically, Mechabes (laundering), the tolda of Melaben.”
Question: May Shmuel dry the wet glasses with his cleaning cloth?