7. Technical writers Average hours typically worked a week: 39.61 Median earned income: $62,000 What they do: Write technical materials, such as equipment manuals, appendices, or operating and maintenance instructions. 6. Physical therapists Average hours typically worked a week: 37.43 Median earned income: $63,000 What they do: Assess, plan, organize, and participate in rehabilitative programs that improve mobility, relieve pain, increase strength, and improve or correct disabling conditions resulting from disease or injury. 5. Audiologists Average hours typically worked a week: 37.77 Median earned income: $64,000 What they do: Assess and treat persons with hearing and related disorders 4. Radiation therapists Average hours typically worked a week: 38.40 Median earned income: $70,000 What they do: Provide radiation therapy to patients as prescribed by a radiologist according to established practices and standards. 3. Optometrists Average hours typically worked a week: 39.03 Median earned income: $100,000 What they do: Diagnose, manage, and treat conditions and diseases of the human eye and visual system. 2. Pharmacists Average hours typically worked a week: 38.38 Median earned income: $102,000 What they do: Dispense drugs prescribed by physicians and other health practitioners and provide information to patients about medications and their use. 1. Dentists Average hours typically worked a week: 37.83 Median earned income: $130,000 What they do:Examine, diagnose, and treat diseases, injuries, and malformations of teeth and gums.