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.
Plaquenil is also an antirheumatic medicine and is used to treat symptoms of rheumatoid arthritis and discoid or systemic lupus erythematosus. Important information. Taking Plaquenil long-term or at high doses may cause irreversible damage to the retina of your eye.