Does anyone know the reasoning for Medicare not covering eyes and dental?

[TexasProgresive]

6. In answer to your question

Certain congresscritters would rather spend megabucks on things like the F35 boondoggle rather than give good health care to the people who built this country by working.

I don't understand why dentistry and optometry are not covered by regular health insurance as well as medicare. At least in my experience it was always separate coverage that was not cheap. Now that I am retired and on medicare we have no dental or eye coverage. We are allowed one eye exam per year (diabetes for me and cataracts for my wife) and eye diseases and injuries are covered. If cataract surgery is done medicare will cover one pair of glasses.

http://www.ehealthmedicare.com/faq-does-medicare-cover-eye-exams/
Original Medicare, Part A and Part B, does not generally cover routine eye exams for eyeglasses or contact lenses. However, Medicare Part B will cover an annual eye exam every 12 months if you have diabetes or are at high risk for glaucoma. Part B coverage also includes diagnostic tests and treatment for certain eye diseases, such as lucentis, aflibercept, and ocular photodynamic therapy.

Because Medicare Advantage plans must offer at least the same coverage as Original Medicare, these plans (offered by private, Medicare-approved insurance companies) also cover the circumstances described above. However, some Medicare Advantage plans may offer additional coverage, which could include routine vision benefits. Certain Medicare Supplement (Medigap) plans may also cover vision-related costs or provide additional eye coverage for an extra cost.