BIOL 1051H Lecture Notes - Lecture 2: Color Blindness, Visual Acuity, Optic Disc
Document Summary
Visual acuity test: determine vision rating, determine prescription. One way to coreect myopia is to: create the needed refraction with optic lenses. To correct myopia we need __ lenses: concave. Astigmatism: gives blurred or distorded vision along a direction. The near point of accommodation for a young adult should be 10cm. The older we get the ____ the near point of accomdation moves : farther. For an older patient in their 60 s, the near point of accommodation should be around : 90cm. When you need to know what the pateints answer to one of the cards means use the: test reference. : lack in certain cones, sex linked disorder, more prevalent in males than females. Alleles cause colour blindless is located: x chromosome. Person can see chart from 20 feet: myopia. 20/100 vision: close as 20 feet from image to see what a person withnormal vision can see at.