What is Prism Glasses?

Category: Equipment


The prism turns the page to a 90 degree angle right before your eyes, eliminating the need for head movement. Lie on your back with your head upon the pillow as normal, and you'll be able to read the book which rests comfortably on your chest.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Double vision (diplopia) 19 4
Multiple sclerosis 4 2
Blurry vision 3 0
General health 2 1
Vision problems 2 2
Astigmatism 1 0

Show all 17 reasons taken

  • Major
  • Moderate
  • Slight
  • None
  • Can't tell

Side effects

Side effects as an overall problem

Side effects as an overall problem
Severity Evaluations
Severe 1
Moderate 1
Mild 0
None 4

Commonly reported side effects and conditions associated with Prism Glasses

Side effect Patients


Based on patients currently using Prism Glasses

Dosage Patients
daily 5
as needed 1
five times daily 1

Why patients stopped taking Prism Glasses

Multiple reasons could be selected

Reason Patients
Did not seem to work 2
Doctor's advice 2
Course of treatment ended 1
See all 3 patients who've stopped using Prism Glasses


Currently using Prism Glasses

Duration Patients
2 - 5 years 4
5 - 10 years 1
10 years or more 2

Stopped using Prism Glasses

Duration Patients
Less than 1 month 1
1 - 2 years 1
10 years or more 1
Adherence Evaluations
Always 4
Usually 1
Sometimes 0
Never taken as prescribed 1
Burden Evaluations
Very hard to take 1
Somewhat hard to take 1
A little hard to take 0
Not at all hard to take 4
Cost per month
Cost per month Evaluations
$200+ 2
$100-199 0
$50-99 0
$25-49 1
< $25 0
Not specified 3
Last updated:

1 patient evaluation for Prism Glasses

Feb 2, 2011 (Started Dec 27, 2010)

  • Effectiveness
    Slight (for double vision (diplopia))
  • Side effects
  • Adherence
  • Burden
    Somewhat hard to take
Dosage: 24 hr Daily
Advice & Tips: I just got mr 3rd pair of lenses since 11-2010 to address my double vision. My 1st pair was simply a stronger prescription, mainly in my right eye which was significantly weaker. One month later, I was still having double vision, so I had another set of lenses - with horozontal prism. Less than 1 month later, I was still having double vision (however, the images were closer together than before. on 2-1-2010 I now have 2 prism's in each eye (Vertical and horizontal). Thus far, after 1 day, they are working better than the 1st pair of prism's.
Cost: $200+ monthly

  • 2 helpful marks
Last updated:
Showing 1 of 1 patient evaluation for Prism Glasses