This week, from the 10th to the 16th of March, is observed as the World Glaucoma Week globally, to spread awareness of glaucoma—a group of eye conditions that damage the optic nerve and lead to total blindness if left untreated. Glaucoma is the second leading cause of blindness in the world accounting for upto 8% of total blindness.
New evidence from Martian valley networks confirms a gradual climate shift from warm and wet during the Noachian period, around 4 billion years ago, to cold and icy by the Hesperian period, around 3 billion years ago.
Mumbai/