Other. Temperate deciduous forests are most notable because they go through four seasons. Leaves change color in autumn, fall off in the winter, and grow back in the spring; this adaptation allows plants to survive cold winters.
1 Although vision problems and loss of sight while taking hydroxychloroquine (Plaquenil) for the treatment of lupus or arthritis are very rare, notify your doctor if you notice any changes in your vision. 2  Your doctor also may suggest regular eye exams while taking this medication.
Damage to the retina, the light sensitive portion of the inner eye, can occur with long-term use of Plaquenil or chloroquine (Aralen). With Plaquenil, however, the most commonly prescribed anti-malarial, this sort of damage occurs only in 1 out of 5,000 people who take the drug for five years or more.