2. Since myopia is the more commonly called nearsightedness where an individual can see objects closeup but objects at a certain distance appear out of focus or blurry. Objects appear out of focus because those images are not projecting correctly on retina. The best treatment available for myopia are corrective lens that can manipulate those projections so that the images hit the retina where they’re supposed to hit. The corrective lens has a concave side that spread the light rays apart; which makes the images seem closer to the individual (Martini et al., 2018, p. 569).
3. Mr. Drummond’s symptoms of vertigo appear when he has his eyes closed. When his eyes are closed he feels dizzy and he his limbs sway eventually towards the left side of his body. However, when his eyes are open he does not feel dizzy and his arms do not sway. This is because there is a problem within his vestibular complex. From his cold, Mr. Drummond …show more content…
Mr. Drummond is experience dizziness associated with his eyes being closed giving an illusion that his body is moving, and this causes his arms to move to one side of his body is because there is a problem with the receptors in his inner ear; which the vestibule complex. Inside the vestibular complex, the contain chambers called utricle and saccule. Within the utricle, the hair receptors are sensitive to horizontal movements and are imbedded in a membrane that contains otoliths or more commonly ear stones. When these crystals don’t receive the signals, or get dislodged they cannot pick up those signals that communicate that our limbs or body is moving; which the result is