OpenHealth Q&A

The adjustments in your glasses' prescription indicate that there were two measurements involved: your myopia (nearsightedness) and an added lens power for astigmatism or a specific visual need. Here’s a clearer explanation:

1. Understanding the Numbers:

   • -4.75: This number represents the degree of myopia (nearsightedness) you have. A higher negative number means you have a greater need for correction to see distant objects clearly.
   • 0.50: This indicates an added power, likely for astigmatism correction. It suggests that you have some irregular shape in your eye's cornea or lens, which can affect vision clarity.

2. Final Reading of -4.25 +0.50:

   • The final reading of -4.25 with an additional +0.50 means that overall, your corrected prescription is -4.25 diopters for your nearsightedness, along with a +0.50 diopter adjustment, commonly added for astigmatism.

3. Why Adjustment Occurred:

   • It's possible that the technician found that your initial measurement of -4.75 was too strong or unnecessary for clarity and adjusted it to -4.25 while still maintaining the required power for astigmatism.

Next Steps:

• 1. Confirm Understanding: If you are still unclear about your prescription, consider discussing it with the technician or an optometrist who can explain in detail the necessity of each component.

• 2. Wear Your New Glasses: Once you have your glasses ready, start wearing them as prescribed to assess the improvement in your vision.

• 3. Monitor Your Vision: Keep track of how your eyes feel with the new lenses. If you experience discomfort or unclear vision, make a note and plan to follow up with an eye care professional.

By taking these steps, you will better understand your prescription and ensure the best visual comfort moving forward. Let me know if you need more information or have additional questions!