The answer is D. All of the above.
<span>The darker an eye color the more melanin the eye has. The melanin concentration in the pigment of the iris cells acts as a way to protect the iris from higher sunlight by spreading the light out. So, in other words, the lighter someone's eyes are the more sensitive they are to light.</span>
A 67-year-old male presents with weakness, dizziness, and melena that began approximately 2 days ago. He denies a history of trauma. His blood pressure is 90/50 mm Hg and his pulse is 120 beats/min and thready. You should be most suspicious that this patient is experiencing:
gastrointestinal bleeding.
