Human Pong

I arrived at the health centre on a Monday morning to begin a two-week course of vestibular rehabilitation. I wasn’t really sure what to expect and hadn’t done any research about the procedure online, before turning up to my appointment. I was feeling optimistic, as I had read stories about others who had benefitted from this type of therapy. Before starting the therapy, I would be doing a Computerized Dynamic Platform Posturography test. This test can be used to assess and evaluate the relationship between the three parts of the balance system; the inner ear, vision, and the sensors in the muscles and joints.

A nurse greeted me, and I followed her into a small room. She asked me to remove my boots and then inquired about my name, age, height, and whether I had been in the health centre previously.

Next, I was asked to stand up and the nurse began to attach a safety harness to me. I put my arms through the main part of the harness, like a waistcoat. She fastened it at the front and then secured another part between my legs; pulling the loose end of the strap tightly. I was then asked to walk into an open-backed grey booth. The nurse clipped thick metal clasps – similar to the kind rock climbers’ use – through the two loops of the harness, close to each of my shoulders; connecting them to two straps that were hanging from a horizontal pole at the top of the booth. She then helped me to position my feet, slightly apart, on the metal plate at the base of the booth. I stood, wearing only socks on my feet, my body strapped into place inside the booth; quickly realising the coldness of the metal plate, and feeling slightly vulnerable, yet also intrigued as to what was going to happen next.

I was facing the inside wall of the booth, and in front of my eyes was a blank screen, slightly smaller than an A4 piece of paper. My first task was to focus on the screen with my eyes open, keeping my balance. I assumed a computer was recording any shift in my body weight as I endeavoured to remain steady. Next, I had to close my eyes. I could feel my body sway as I went into darkness. I then had to open my eyes again, and within a moment I felt my surroundings move. The metal platform and the booth walls moved slightly and I was asked to maintain my balance. I was aware that the nurse was standing behind me during the entire procedure, and in addition to the harness that was fastened securely, I knew her hands were ready to support me if I fell. I then had to close my eyes again whilst the plate or the booth, or maybe both (I wasn’t sure) was moving. It was difficult to keep my balance and I stumbled slightly. Finally, I was asked to open my eyes again whilst the plate was moving. On opening my eyes I felt a wave of dizziness, but nothing too severe.

Next, the screen in front of me was switched on and a stickman, enclosed in a line square, appeared on a blue background. The nurse explained that I was the stick man; when I moved, so did the little man on the screen! The movement seemed to be controlled by my leaning and the pressure my feet were applying to the metal plate. There were numerous ‘jeugos’ – she described the tests as ‘games’. The concepts were simple, and the first ‘game’ resembled something very similar to a human version of the old Atari computer game, Pong. A circle – I imagined this as the ‘ball’ – moved predictably across the screen, back and forth between two vertical lines – the ‘players’. The aim of the ‘game’ was for me to follow the movement of the ‘ball’ with my stickman body. The ‘players’ unlike in the original Pong were stationary. I swayed from side to side on the metal platform, trying to keep on course with the ‘ball’. This was more difficult than I’d anticipated, and my stickman body flew around erratically for a few shots before I was able to control my movements and balance well enough to roughly follow the ‘gameplay’. Just as I thought I was getting the hang of it, the speed of the ‘ball’ increased so that it was being ‘hit’ between ‘players’ at a much faster pace. Again my stickman body was flinging itself all over the place, and I found it difficult to keep up with the ‘ball’. This Pong-like ‘game’ was repeated so that the ‘players’ changed positions and were represented as horizontal lines at the top and bottom of the screen with the ‘ball’ and me moving upwards and downwards with each shot. The final Pong ‘game’ was played whilst the platform made some movements which of course made it more challenging.

Pong

The final ‘game’ comprised of basic red and yellow-coloured squares that looked like representations of bricks. Eight squares were arranged in the centre of the screen, together forming a rough oval shape. All the squares started off as red, apart from one that was yellow. This square would remain yellow for 10 seconds before changing back to being red. The consecutive square in the oval shape would then turn yellow for 10 seconds before changing back to being red, and so on. The aim of this ‘game’ was to move around the oval shape, with my stickman body, to each consecutive yellow square. When the ‘game’ began, an off-balanced wobble of my legs caused the stickman to be launched again wildly across the screen, before I managed to take more control. The movement of the metal platform beneath my feet caused the sensation of being on a boat that was very sensitive to movement. The more I swayed towards the yellow squares, the more the surrounding booth moved, making me feel unbalanced; causing unsteady movements of my stickman. I played the ‘game’ to the best of my ability, though it was difficult to maintain position inside the squares, and my stickman swayed around the perimeters; dipping in and out of them. With some time, however, my confidence and ability increased and I started to feel competitive. The ‘game’ was repeated, with the yellow square moving around the oval shape in the opposite direction, and again with more sensitivity and movement from the foot-plate.

vestibualr rehabilitation screen

 

Once the ‘games’ were completed, the nurse printed some results. I saw some sets of bar graphs and values on the screen in front of me, but they weren’t discussed. I was told to stand still and wait a moment. I supposed these results would inform the doctor as to how well my balance system was functioning, enabling them to tailor the therapy to my needs.

New Year Tests

It was the first week in January and I was beginning the New Year with a visit to the hospital. Since my vertigo attack, and experiencing increased dizziness during the past few months, I had been referred to a Vestibular Audiologist to carry out some tests. The vestibular system is the inner ear balance mechanism, which works with our eyes and parts of our brain to stop objects blurring when the head moves. I was at the hospital to carry out some Vestibular Function Tests (VFTs) to determine the health of my inner ear balance system; in particular that of my right and only hearing ear. In preparation for the tests I was told to eat breakfast 3 hours beforehand; to not wear makeup or face cream; and to refrain from consuming caffeine or alcohol for the 48 hours leading up to the tests.

The first test was called a Video Head Impulse Test (vHIT). A friendly looking woman asked me to sit on a chair facing a wall. On the wall was a silver sticker that was the shape of a paint splodge. She fixed some goggles over my eyes, fiddling with an elasticated strap to make sure they were secured tightly; the plastic pressing into the skin around my eye sockets. She forced my right eye wide-open and trapped it in position with the goggles. She then sat to the left of me at a small desk with a computer. I began to realise that the goggles were making a high pitched noise that I could hear in my right ear. I wondered if they were making the same sound next to my deaf ear; undetected. I figured the glasses had a camera embedded inside them, and that the data would be sent to the computer and then interpreted through some software. I couldn’t look at the screen or what the woman was doing, as she told me to focus my vision on the paint splodge. I sat there for a while whilst I heard her gently tapping the computer keys.

After about 10 minutes she stood up and said something to me in Spanish that I didn’t quite hear nor understand. She held my head in her hands, and started to move it with small sudden motions. During this procedure I had to continue keep my focus on the splodge. She carried out this process in 4 short sessions, each one lasting approximately 5 minutes. My hair kept escaping from her grasp and individual strands fell randomly to my face. She kept moving them away and commented on how fine my hair was. After the third session her phone rang and she had a chat with someone who I gathered, from a few moments of concentrating on her Spanish conversation, were family. It was still Christmastime and the feeling in the hospital was more relaxed than usual. Whilst she was speaking I took the opportunity to look at the computer screen. There was a close-up photo of one of my eyes, and two graphs that were being plotted with what I assume were the reactions of my eyes to each movement. One graph was plotted in a red curve, and the other in blue. I could see, at this moment, that my left side had received a ‘positive’ result and my right side a ‘negative’. I wasn’t sure what this meant, and the test wasn’t over yet. Once the test was finished I felt a little dizzy.

Next was the Caloric Stimulation procedure. I was asked to sit in a chair, similar to one you’d find in a dental clinic. The chair was reclined so that I was lying down and comfortable. Then she fixed another pair of goggles over my eyes. These were bigger than the previous, and pressed forcefully onto the bridge of my nose. The woman explained that the googles had cameras inside to film my eye movements. She then put covers over the lenses so that I lay in darkness. Next she gently tucked what I assume was a towel, under my chin and around my shoulders. Then, what felt like a small bowl, was placed under my right ear. She informed me that she was going to put some water into my ear and that it was going to sound very loud. She instructed me to keep my eyes open once the water supply stopped. She was going to start by using cold water and would test my right (hearing) ear first. Well, I wasn’t really prepared for what happened next.

I had imagined that a small amount of water would be squirted into my ear; perhaps a syringe-full. First, I heard a mechanical-sounding Spanish voice, coming from a machine – I think it was stating the measurement of water or pressure that had been selected for the test. Then my ear was filled with a high-powered continuous stream of water. It sounded like a storm inside my head. The sensation of the water going in felt cold and as though I was having an intense ear-clean, though it wasn’t too uncomfortable. Once the water stopped flowing, I felt it start to drain out of my ear; trickling into the bowl. I forced my eyes wide open as I had been instructed, and then the dizziness began. The woman had left my side, and I assumed she was now at her computer checking the results. It felt like a mild attack of vertigo. I watched the blackness of the inside of the goggles swirl from one side to the other, and started to feel a little sick. I was aware that the woman was saying something to me, but with some water still in my ear, I was unable to hear her. When all the water had drained, I heard a small satisfying pop and I could hear again. I told her I felt a little sick and dizzy. Once she had the results she needed, she let me rest for a while with my eyes closed. Next she performed the same routine on my deaf ear. This time the sound of the water entering my ears was silenced; a muffled gurgle. The dizziness following the water spray was slightly more intense, and again I was allowed to rest with my eyes closed, following the taking of results.

I hoped the test was over, but she informed me that she would now repeat the procedure on both ears; this time with hot water. The hot water was a little more uncomfortable than the cold had been, as it entered my ear. As soon as the water began to trickle out, an intense wave of dizziness overtook me. I tried to control my breathing. I started to sweat. I told her I felt really sick. I managed to control the dizziness and the nausea, and was allowed to rest a little longer with my eyes closed. I was also instructed to keep my eyes closed as she performed the hot water test in my left (deaf) ear, but to open my eyes wide again once the water stopped. There was some discomfort as it streamed into my ear, accompanied by the subdued sound. I opened my eyes widely once the water pressure had stopped, and I was immediately hit by a surge of strong vertigo. I wanted to close my eyes. I wanted to sit up. I was told to keep my eyes open for a few more seconds whilst the results were being taken. I was sweating more. I became aware of my heart beating wildly in my chest. I focused on controlling my breath; breathing out deeply with my lips puckered tightly into a circle. I held onto the side of the chair to try and keep myself stable.

She rushed over to me and carefully brought the chair back up into a sitting position, and placed what looked like an adult nappy across my forearms and under my chin. She told me to breathe and relax. My stomach cramped as though I was going to vomit, and my head jerked forward. Nothing. I realised why it had been necessary to fast during the three hours before the test. My arms and fingers were tingly and weak; the feeling I used to get as a child from carsickness. I breathed in controlled breaths for some time, as the woman continued to do things at her computer. I started to feel better.

A familiar face appeared in the doorway – it was the specialist who I had consulted with when I first lost my hearing. She recognised me and asked me if I was OK, and she wished me a Happy New Year. The woman made me wait a little while longer after feeling better and then she gave me a sealed envelope, addressed to the ENT department, containing the test results. I would take these with me to my next consultation to discuss with a specialist.  I was then allowed to leave the room and go to my boyfriend who was waiting for me outside.

Dizzy Dollies

When I was a child, I used to play a game with my sister, called Dizzy Dollies. I don’t know if this was an actual game, or just something my mum thought up as a way of keeping us occupied. The game involved spinning around, usually on grass, with arms outstretched like birds. We’d spin; our arms feeling light from the rotational force, until the dizziness became too much for our brains and bodies to compete with, and we’d fall down with a joyful thud of giggles.

Since my hearing loss, that feeling of dizziness a few moments before falling is always with me; following me around like an unwanted shadow. I now have a sense of dizzy instability, much stronger and more frequent than before my recent vertigo attack. When I’m walking around my apartment, I feel OK. My brain is accustomed to navigating my body around the small enclosed space. However, when I go outside, my stabilisers are removed and my vulnerability is exposed to the vastness of my surroundings. The movement of people on the streets and the cars on the busy roads cause a rapid development of confusion in my balance, and in turn my ability to steer my body with composure is put to the test. When I’m in a crowd, or if I turn around and see someone standing close to me, I immediately feel off balance and the Dizzy Dolly feeling hits again. Every three or four steps I feel a heaviness building inside my head combining with the ever-present pressure in my ears. This weight causes a sensation of my head being forced downwards; a feeling that quickly spreads through my body. My legs become heavy, and the floor seems to lurch towards me. I am constantly trying to find my balance. Sometimes I feel nauseated. Other times I need to sit down to regain my balance. I feel dizzy if I look around too much or too quickly. Certain types of lighting also seem to affect my steadiness, especially in supermarkets or department stores. I’ve noticed some difficulty focusing my eyes now. Sometimes when I try to concentrate my sight on a small area, my focus drifts away and I have to keep forcing it back. I don’t feel comfortable walking close to people with walking sticks, pushchairs, prams, and small dogs, in the worry that I will lose my balance and fall on them.

For the past month the only advice I have been given is to rest. And I have rested. Yet, if anything, the feeling of dizziness when I am outside seems to be worse than ever. It occurred to me that maybe resting could now hindering my progress.

Whilst searching on the internet for practical advice, I came across a blog entitled ‘Life with Sudden Sensorineural Hearing Loss’. It was written by a girl named Dana, who had experienced sudden hearing loss in the summer of 2007. In her post ‘Be Active’ Dana describes her return to college after losing the hearing in her left ear. She writes about the challenge of her ‘roller coaster’ bus commute, and the instability she felt when riding the escalator:

‘I made my way to the escalator, gripped the railing firmly, and focus my eyes on my feet to prevent losing my orientation on the long descent to the metro platformThe movement, the echoy noises in the metro, and a constant sense of chaos.’

These experiences were incredibly similar to mine. I felt some comfort in knowing that someone else had also undergone these challenges when traveling on public transport, following a hearing loss. Dana explains how her daily commute became easier during the successive months. Then over Christmas she worked from home, and didn’t have to worry about her hearing and balance. When she returned to her classes in the New Year, she comments again on her commute:

 ‘The bus ride to the metro was just as terrifying as it has been my first week in September. All progress that I’d made on my balance was lost.’

Dana consulted with an audiologist who carried out extensive tests of her hearing, eyes and balance. She also listened to Dana’s story about how her balance had improved during the autumn, and after asking follow-up questions the audiologist gave her a simple instruction:

“You’re healthy but your balance is off. From here on out you need to retrain your brain constantly where your new balance is. And to do that, you must simply stay active. That’s your prescription – to stay active.”

Dana summarizes that ‘During my several sedentary weeks in December, my brain had completely forgotten all of the lessons I had taught it.’   

Maybe this is what has happened to me. I have been told to rest, and resting has enabled me to feel stable in the small surroundings of my apartment. But by resting every day, and spending a lot of time indoors, my brain hasn’t needed to work to constantly recalibrate my balance. Perhaps I need to retrain my brain to manage my stability in more challenging situations. Maybe I need to become accustomed to being outside again; to feel more confident traveling on the Metro, riding escalators, and walking on busy streets. Maybe the best thing I can do to help shake this Dizzy Dolly feeling is to ‘stay active’.

In the lack of any better suggestions, this is the prescription I am choosing to fill. I have had enough of resting. I am an active person. I enjoy walking and running, and being outside. I have rested enough. This condition is unpredictable, and I can’t spend my days waiting to feel better. I certainly don’t want to be always waiting for the next vertigo attack. I need to focus on continuing with my life as best as possible. I will endeavour to ‘stay active’ and attempt to lose this unwelcome shadow of dizziness.