(Week # 10: March 8 to March 15 – Main post under Assignment by Wed, March 11 at 11:59 PM EST). APA FORMATChapter 19 – Diseases Affecting Vision and Hearing.Chapter 20 – Metabolic Disorders.Question(s): Choose and explain one of the eye diseases / disorders discuss in you textbook. Discuss its possible treatments.Guidelines: The answer should be based on the knowledge obtained from reading the book, no just your opinion. If there are 3 questions in the discussion, you must answer all of them. Your grade will be an average of all answers.