Final answer:
Option C. In terms of fitting contact lenses for a latent hyperope, they may require more plus power than indicated by manifest refraction. After LASIK, the range of diopters due to the uncertainty in correction for a myopic patient is 8.55 D to 9.45 D. Prior to the procedure, the person was nearsighted as the power of the eye is reduced to correct this condition.
Step-by-step explanation:
The latent hyperope's tale in terms of fitting contact lenses suggests that they may require more plus power than their manifest refraction suggests. This is because their eyes can often make up for some of the farsightedness through accommodation, which might not be evident during a standard refraction test.
For a myopic patient who undergoes a laser vision correction procedure such as LASIK, the power of their eye is reduced by 9.00 D with a ±5.0% uncertainty. The range of diopters for spectacle lenses they might need after the LASIK procedure can be calculated by considering the uncertainty. If the correction is less effective by 5%, they might need up to 9.45 D (9.00 D plus 5% of 9.00 D). Conversely, if the correction is stronger by 5%, they might need as little as 8.55 D (9.00 D minus 5% of 9.00 D).
This person was nearsighted, or myopic, before the procedure. We can determine this because LASIK for myopia involves reducing the power of the eye to decrease the convergence of light rays, which is necessary when the eye focuses light in front of the retina, characteristic of nearsightedness.