In this case, is it better to wear the glasses or not?

  • Thread starter Thread starter jaumzaum
  • Start date Start date
Click For Summary
SUMMARY

The discussion centers on the implications of wearing glasses for astigmatism, particularly in relation to reading at close distances. The individual has been prescribed divergent cylindrical glasses to correct their vision, which has been affected by prolonged close-range activities, leading to a plastic change in eye muscle function. The primary concern raised is whether wearing these glasses while reading would exacerbate the need for eye muscle contraction, potentially leading to discomfort or further vision issues. The thread concludes with a reminder to seek professional medical advice from an ophthalmologist or optician.

PREREQUISITES
  • Understanding of astigmatism and its effects on vision
  • Basic knowledge of optics and how eye muscles function
  • Familiarity with the types of corrective lenses, specifically divergent cylindrical lenses
  • Awareness of the importance of professional eye care
NEXT STEPS
  • Research the effects of prolonged close-range reading on eye health
  • Learn about the mechanics of eye muscles and their role in focusing
  • Investigate the differences between divergent and convergent lenses
  • Explore best practices for eye care in relation to screen time and reading
USEFUL FOR

This discussion is beneficial for individuals with astigmatism, students studying optics, and anyone interested in understanding the impact of corrective lenses on vision and eye health.

jaumzaum
Messages
433
Reaction score
33
I recently found out I have astigmatism, my vision becomes a little bit blur at far distances. The doctor told me that as I stay too much time in front of a computer reading in a close distance, probably the contraction and relaxation of the eye muscle bended it in a plastic way.

I’m studying optics. So my understanding of this is that the lens in my eyes have a variable power, or a variable focus. At very far distances the muscles are relaxed and the lens have their smallest power. In close distances the muscle contracts and the lens get their greatest power. I assume my eyes muscle got used to contract so much that the lens got plastically bent and the power when they are relaxed increased. So I’m using divergent cilindrical? (I don’t know how it works for the astigmatism) glasses that will make the combination of glasses +eye curvature get back to what it was before and make me seeing far objects again.

My only concern is: What about reading things close to you? Is it better to use the glasses or not? Because in my understanding if they are really divergent glasses I would have to contract even more my eyes muscles to get the lens to focus in a close object.
 
Biology news on Phys.org
PF really does not and can not give medical advice. Please get help from an ophthalmologist/optician. So we are closing the thread.

I believe your understanding about what is going on could profit viewing:

 

Similar threads

Medical The power of the human eye's lens
  • · Replies 5 ·
Replies
5
Views
3K
What is the Cause of Nearsightedness?
  • · Replies 1 ·
Replies
1
Views
3K
Why Does Stacking Lenses Improve My Vision?
  • · Replies 15 ·
Replies
15
Views
3K
Undergrad My spectacles defy the laws of physics
  • · Replies 13 ·
Replies
13
Views
2K
Undergrad Automatic double lens glasses?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Using simple lenses to image AFM Probes
  • · Replies 10 ·
Replies
10
Views
2K
Graduate Mode matching to an optical cavity
  • · Replies 0 ·
Replies
0
Views
3K
Undergrad Steam punk, Field of view including the eye
  • · Replies 4 ·
Replies
4
Views
2K
Undergrad Focusing UV light from a 275nm LED down to a small spot
  • · Replies 10 ·
Replies
10
Views
3K
Undergrad Focus or parallelize the light from an LED
  • · Replies 2 ·
Replies
2
Views
1K