20. Eyes

Eyes

A. Context

The particular challenges of those with blepharospasm are surveyed here. Some people have this one type of dystonia. When the involuntary muscle spasms and contractions of the muscles around the eye are accompanied by involuntary and sometimes forceful contractions of muscles of the jaw and tongue, those who have meige syndrome diagnosis may also be responding to this survey.


Patients with other forms of dystonia sometimes report occasional eye involvement. Difficulty looking straight ahead can result in seeing objects from a tilted angle or a delay in the adjustment of the eyes to a new head position.

B. Timeline

1887- Horatio Wood, neurologist in Pennsylvania  describes dystoniaof  the eyes and in the jaw

1900- French neurologist Henry Meige studies a condition in ten patients with jaw oddities and eyelid closure. Meige at first believed patients lacked ‘psychical equilibrium’,  and suffered from melancholic temperament and emotional stress  but in 1910 found evidence that there was  an actual change  in the activity of the midbrain in the basal ganglia. 

1972 – Neurologist Dr. George Paulson studied jaw and eye dystonia in 3 patients in the US

1980  Dr. Alan Scott, a San Francisco ophthalmologist found that if a patient had eyes looking different directions, strabismus, (crossed eyes), one way to help them was to cut away the muscle that pulled the eye to one side. However this destroyed the muscle  and he found that another way to fix the problem was to inject botulinum toxin to temporarily weaken that muscle.   He proposed injecting botulinum toxin in the eyelid muscles of people with blepharospasm.  This weakened but did not destroy the muscles around the eye.

1989- the US Food and Drug Administration approves use of botulinum toxin Botox BT-A for treatment of eye dystonia

C. What seems useful to study

Clamping shut of eyelids is not difficult to identify but slight delay in opening or closing eyes may be more subtle. Ability to focus the eyes is a separate concern. Vision is affected by fatigue so effects of dystonia may be difficult to isolate since patients with dystonia often report exhaustion and problems sleeping.  Vision tends to deteriorate with age so for seniors with dystonia, it may be unclear which changes in vision are due to dystonia and which ones are due to ageing.

Some anti -anxiety medications and anti-depressants can cause blurred vision and those medications are frequently prescribed for those with dystonia.

Many people with dystonia report dizziness. Blurred vision may make a person feel dizzy, or the dizziness may be due to balance problems not related to vision. Many medications have a side effect of dizziness. The study  of eye involvement and dystonia  therefore is complex and the surveys look for patterns only.

Patients with cervical dystonia report that sometimes to enable a sensory trick such as lifting the head, they squint. Those in pain report that they sometimes cope by wincing, squinting nearly by reflex. It is unclear whether these two phenomena are more common in dystonia but there may be a link worth examining.


Those whose heads tilt report they are often less aware of objects on one side. Those whose heads tilt up may be able to only take occasional glimpses of what is at their feet. Those whose heads tilt down may not easily notice low hanging branches, and often report trouble seeing to go up stairs.   In these ways though cervical dystonia does not affect the eyes directly, it may impair vision of the environment.

Patients with vision problems report they are sometimes perceived by the public as if they also cannot hear or process ideas.  Some report that strangers immediately talk over them, talk to their companion not them, or who speak slowly and in babyish simplicity when addressing them.

D.  Comments from patient experience

first signs

At first. when I had trouble focusing. I thought I just needed glasses

I felt like I had to screw up my eyes and tighten my face muscles all the time

I had eye and nose twitches

I noticed I was blinking a lot and my eyes screwed up a lot

I thought maybe I had an ingrown eyelash

My eyes began to twitch and close

My eyes opened with a lot of squinting and I could not talk well

My eyes  were very heavy

One day I suddenly could not see

problem opening eyes or keeping eyes open

I could only hold my eyes open for a few seconds

With no warning my eyes close and I have to work very hard to get them to re open 

My eyes just randomly close

I literally cannot open my eyes for any task that is so easy I could do it with my eyes closed.

problem closing eyes or keeping eyes closed

It was hard to close my eyelids


twitches, blinking, spasms

I have no control over the blinking. It’s like hiccups. They just happen

My eyes started twitching a lot

People might think I’m winking at them

The eye muscles felt irritated and I got exhausted from the spasms

eye floaters

My eye floaters make me think I have a bug inside my glasses

My eye floaters are like dust flying all over the place

My eye floaters are creepy, like the walls are crawling

My eye floaters freak me out

impact on daily life

I am not blind but it seems like a type of blindness

It is hard to pour hot tea and dangerous

It is hard for me to focus on the TV screen

My eyes can go into spasm when I use a computer screen

When I tried to talk, the eye problem got worse

treatment


I tried putting ice packs on my eyes to reduce the spasms

I am grateful for the doctor who spotted my problem and acted quickly.

coping

I don’t wear eye make up any more

I now wear dark wrap-around sunglasses outdoors because light triggers the dystonia

Lately I wear dark sunglasses indoors because mall light can give me headaches

When I use a computer I set a dark background with white lettering

E. Source of question ideas: 

patient reports. clinical studies, biographies

F. Question categories

symptoms

coping

dryness

gaze

med treatment

tricks

G – Questions asked

surveys 5 and 27

H. Results

eyes

5          45            eyes                 15            22                    81                                3

27        3            eyes                 7            7                      80                                1

max no. respondents                             45

total questions                                     29

likely type of dystonia             – blepharospasm, cervical  possibly some others

percent of all respondents doing survey                45 of 508 or 8.8%

percent of this type of dystonia in population

challenges to do this survey – eye problems would make it hard to see the survey

I. Results

(The bracketed item at the end of each question set indicates the survey number and then the question number. eg. 1-3 is survey one, question 3)

1. first sign

-What were the first signs of dystonia in your eyes?

            20.93% My eyes felt gritty

            18.60% I had a drooping eyelid

            25.58% I started blinking a lot

            27.91% I had trouble opening my eyes

            0% I had trouble closing my eyes ( 5-10)

2. symptom progression

-eye problems progressing

            4.65% My eye problem has not changed over time

            9.30% The problem started with a drooping eyelid and then it got

                        harder to keep the eye open at all

            25.58% The problem started with extra blinking and then it got harder

                        to keep the eye open at all

            11.63% The problem started in one eye and the moved to also affect the other

            2.33% The problem started in one eye and then got better but then     

                        it happened in the other eye

            13.95% unsure

            46.51% not applicable (5-11)

3. symptoms

-symptoms

            0% My eyes appear normal in size

            0% When open, my eyes are in normal position

            66.67% One of my eyelids droops

            33.33% Both of my eyelids droop

            33.33% One of my eyes flutters involuntarily

            33.33% When I open my eyes there is a delay in one or both of them

            0% If is hard for me to open my eyes at all

            0% When I close my eyes there is a delay in one or both of them

            0% It is hard for me to close my eyes at all

            33.33%I can open and close my eyes easily

            0% I sometimes have eyebrow spasms  (27-1)

            (small number of respondents only for this question)

4 opening or closing eyes

-What happens when you try to keep your eyes open for a few seconds?

            41.46% There is no difficulty

            12.20% There is slight pain

            0% There is intense pain

            12.20% There is shaking and tremor

            21.95% I have sometimes used my fingers to try to keep my eyes open (5-14)

-opening your eyes

            13.64% When I open my eyes, there is a delay for one of them to open

            11.36% When I open my eyes, there is a delay for both of them to open

            18.18% I can easily open my eyes within ten seconds of being asked to

            13.64% If I blink, there is a delay before my eyes open again

            4.55% It is difficult to open my eyes at all

            11.36% It is difficult once my eyes are open to keep them open

            11.36%  When I open my eyes I can open them fully so they are wide open

            20.45% When I open my yes they only get half open

            54.55%  My eyes open normally (5-2)

-closing your eyes

            35.56% Since dystonia I more often close my eyes just for comfort

            24.44% My eyes during the day are sometimes half closed

            28.89% It is sometimes hard for me to keep my eyes open

            11.11% It is always hard for me to keep my eyes open

            11.11% When I close my eyes they are often squeezed shut

            11.11% My eyes gently close on their own

            31.11% My eyes close forcibly and involuntarily

            37.78% My eyes close normally and with only normal frequency (5-1)

5. blinking, squinting

– blinking

            44.19% I blink my eyes the same way and amount as normal

            30.23% I blink more often since dystonia

            18.60% My blinking is severe

            16.28% I have involuntary winking

            16.28% My eyes twitch uncontrollably

            11.63% I have been told I have a tremor in my eyes (5-3)

-Some drugs can produce eye blinking. Has this been ruled out in your situation?

            28.21% Yes

            17.95% No

            5.13% unsure

            48.72% not applicable (5-19)

6. dryness, sand, grit

-These questions ask about eye comfort

            38.64% My eyes often feel sandy and gritty

            56.82% My eyes often feel dry

            29.55% My eyes water more often since dystonia (5-6)

-eye condition

            33.33% Since dystonia my eyes feel dry more often

            0% Since dystonia my eyes feel watery more often

            0% My eyes have not changed dryness since dystonia

            33.33% Since dystonia I get more light flashes that dance around the room

            (27-3)

            (few respondents answered this question)

7. eyebrow control

-eyebrow control

            69.77% I can raise my eyebrows at will

            4.65% One of my eyebrows goes up involuntarily

            16.28% I purse my eyebrows more often since dystonia

            16.28% To keep my eyes open I often raise my eyebrows (5-4)

8. diagnosis

-Did the doctors rule out that you might just have conjunctivitis?

            28.21% Yes

            10.26% No

            10.26% unsure

            51.28% not applicable (5-20)

-Were your eyes examined to rule out a brown or green ring of copper deposits around the cornea?

            15.79% Yes

            18.42% No

            39.47% unsure

            26.32% not applicable ( 5-21)

9. gaze and vision

-vision

            40.91% Both of my pupils are equal in size

            31.82% Both of my pupils react normally to light

            38.64% My vision has not changed due to dystonia

            29.55% My vision has changed since dystonia

            13.64% I sometimes have double vision if I look at things from certain angles

            4.55% Sometimes the room looks  suddenly sideways (5-8)

-These questions ask about effects if your eyes are shutting more often.

            23.81% I can still see what is going on around me

            11.90% I sometimes miss seeing vital parts of an event I’m watching

            11.90% I am a little slower to notice when stargners appear or disappear from                                     view (5-16)

-gaze

            33.33% When my eyes are open I can see straight ahead well

            33.33% My gaze is off to one side

            0% Since dystonia my vision is sometimes double

            0% I have problems looking to the left

            66.67% I have problems looking to the right

            0% I have problems looking up

            0% I have problems looking down

            0% If I move my eyes fast, they cross

            100.00% If I move my head fast, I feel dizzy for a second

            0% If I move my yes fast, my head drops down

            0% When I turn my head  it takes a moment for my eyes to catch up (27-2)

            (few people responded to this question)

10. daily actions

-Has dystonia changed your ability to do daily tasks?
            23.08% I can still read a book or newspaper

            23.08% I can still use the computer

            23.08% I can still watch TV and see the screen

            41.03% My eyes get tired more easily when I read, watch TV or

                        use the computer

            10.26% My vision is fine but I often can’t open my eyes well enough to see

                        (5-13)

11. coping / sensory tricks

-Are there things that you can do that make the dystonia less?

            19.51% The dystonia is less when I look downward

            7.32% The dystonia is less when I pull on an upper eyelid

            2.44% If the eyelid is closed, if I manually open it, it then is

                        easier to keep it open

            12.20% My eyes close less when I hum

            24.39% My eye spasms don’t happen when I sleep

            9.76% Applying slight pressure on my eyelids relieves the problem briefly

            12.20% The dystonia is less when I paint

            4.88% My eyes close less when I sing

            0% My eyes close less when I yawn

            14.63% There are other activities I do that reduce the dystonia

            4.88% The dystonia is always the same and nothing I do changes it

            4.88% unsure

            51.22% not applicable ( 5-17)

-Things you do to cope with the eyesproblems

            33.33% I sometimes use one hand to prop my eye open

            66.67% The dystonia is less if I massage my cheek bone

            0% The dystonia is less if I over one eye

            0% The dystonia is less if I pull on my upper eyelid

            0% The dystonia is less if I pull on the eyebrow

            0% The dystonia is less if I just touch my eyelid

            0% The dystonia is less if I look downward

            0%\ The dystonis is less if I touch my forehead

            0% The dystonia is less if I touch my chin

            33.33% The dystonia is less if I touch my nose

            33.33% The dystonia is less if I touch beside the side of the eyelid (27-4)

            (only a few people responded to this question)

12. triggers, attacks

-Is sunlight hard on your eyes?

            20.45% No, sunlight does not bother my eyes any more than it did

                        before dystonia

            20.45% Yes, sunlight is a little harder on my eyes now
            38.64% Yes, sunlight is very hard on my eyes now

            31.82% Any bright light seems to trigger my dystonia (5-7)

-light and its effect on the eyes

            45.24% It is very hard on my eyes to see headlights of an approaching car

            16.67% Variable light in a room, with areas of darkness and areas of light, sets

                        off my dystonia

            30.95% My dystonia is less intense when the room is dimly lit

            9.52% Light and darkness do not seem to affect my dystonia ( 5-15)

-attacks of dystonia in the eyes

            36.59% I sometimes have attacks of when the eye dystonia is worse

            7.32% The eye dystonia is constant and there are not periods when it is worse

            4.88% The eye distonia is occasional and mild only

            7.32% Before an attack I see an aura

            2.44% Before an attack I have a visual disturbance

            4.88% unsure

            51.22% not applicable (5-12)

13. medical treatment

surgery

            45.95% I have never had surgery for my eyes, eyebrows or eyelids

            2.70% I have had eye surgery

            2.70% I have had surgery to remove part of the muscle in my eyebrow

            8.11% I have had surgery to remove part of the muscle in my eyelid

            2.70% After surgery my eyes opened and closed better

            2.70% unsure

            43.24% not applicable (5-22)

-treatments

            33.33%I had botulinum toxin injections and they helped

            33.33% I had botulinum toxin injections and they did not help

            0% I had eyelid surgery and it helped

            0% I had eyelid surgery and it did not help (27-7)

            (low number of respondents to this question)

14. devices

-eyewear for dystonia

            60.53% I wear eyeglasses or contact lenses and did so before dystonia

            13.16% My eyeglass prescription has not changed since the dystonia

            44.74% My eyeglass prescription has changed since the dystonia

            31.58% I always have worn sunglasses in bright sunlight

            44.74% I wear sunglasses more often since dystonia

            2.63% I have always used goggles when swimming

            2.63% I use goggles  more when swimming, since dystonia

            2.63% I have tried eye crutches on my glasses (5-18)

J. Analysis

These questions are intended for those with diagnosis of blepharospasm or any other dystonia related eye problem  With the high rate of answers marking ‘inapplicable’ it appears that some respondents with dystonia in other body parts may have answered these questions based on some eye involvement  but not necessarily official diagnosis of dystonia there.  This means the results are not dependable for blepharospasm alone. There may be trends there for blepharospasm but a more differentiated question system would have been useful.

Patients with other areas of dystonia sometimes have some eye involvement. Meige syndrome is dystonia affecting eyes and jaw, tongue and sometimes neck, so some answering may have fit that category.


Answering  an online written survey when a person has vision problems would be  daunting. It is likely that those who did respond went to considerable trouble to do so, possibly getting help with reading.  A survey of people with vision problems using spoken question and spoken response would likely be useful.

eye condition

33.33% – 56.82% reported dry eyes

25.58% -33.33% reported eye flutters, spasms, involuntary blinking or winking

20.93% -38.64% reported gritty eyes

0 –  29.55%  reported watery eyes

9.30% – 18.60% reported drooping in one or both eyelids


seeing lights

33.33% reported getting light flashes that dance around the room

7.32% reported seeing an aura before a dystonia attack

2.44% reported having a visual disturbance before an attack

effect of light

59.09% reported that sunlight is a little harder or very hard on their eyes now

45.24% reported that it is very hard on their eyes to see headlights of

            an approaching car

44.74% reported they wear sunglasses more often since dystonia

31.82% said any bright light seems to trigger their dystonia


The difficulties some report in watching TV or using a computer could have been studied more thoroughly to see if the problem was in opening the eye or from the screen being a light source difficult to look at.

41.03% report that their eyes get tired more easily when they read, watch TV

            or use the computer

difficulty opening eyes – they tend to stay closed

31.11% report that their eyes close forcibly and involuntarily

28.89% report that it is sometimes hard to keep the eyes open

27.91% reported a first symptom as trouble opening the eyes

24.44% report that during the day their eyes are sometimes half closed.

11.11 % report that their eyes gently close on their own

difficulty closing eyes – they tend to stay open

0% reported as first symptom trouble closing the eyes.

(A separate study of orientations and dystonia, open or closed, left or right, bent or stretched is in a later chapter.)


sensory tricks

66.67% report the dystonia is less if they massage a cheek bone

33.33% report that it is less if they touch beside the side of the eyelid

33.33% report that it is less if they touch their nose

21.95%-33.33%  report they sometimes use a finger or hand  to try to prop the eye open

19.51% say the dystonia is less when they look downward

12.30% report it is less if they hum

12.20% that it is less when they paint

7.32% report it is less when they pull on an upper eyelid

4.88% report it is less when they hum

4.88% that it is less when they sing

vision itself

100.00% report that if they move their head fast, they feel dizzy for a second

66.67% report problems looking to one side

38.64% say their vision has not changed since dystonia

33.33% say their gaze is off to one side

29.55% say their vision has changed

13.64% say they sometimes have double vision

(this set of questions seems to have been answered by those with several types of dystonia not solely by those with eyelid involvement. A more clearly differentiated type of question linked to diagnosis would have been useful)