People with eye muscle problems, in which the eyes are not pointed at the same object, have trouble processing 3D images. Whether your eyesight is 20/20 or less than perfect, watching a 3-D movie isn’t going to cause any vision damage, according to experts like Anshel and Tychsen. There have been worries that watching movies with poor ambient lighting may precipitate an acute glaucoma attack. “Getting a headache at a movie isn’t harmful, but it is symptomatic of subnormal vision,” Tychsen said. “If it happens, that might be a good sign it’s time to visit an eye doctor.”
Watching 3D films can cause dizziness, headache and nauseaAccording to Dr Wang who founded Eye Doctor Singapore, a popular website that advises the public about eye health, people who have lazy eyes, squints, lack of stereovision or have poor vision in one or both eyes i.e. cataracts, glaucoma or age-related macular degeneration will not be able to enjoy the 3D effects. People who have problems in combining the shadows in both eye in general will experience typical symptoms while watching a 3D movie.
Some private enquiries also questioned if 3D movies may precipitate or worsen refractive errors such as myopia- a dreaded problem among parents with young children. As many people complain of dizziness while watching the a 3D movie and blame the 3D glasses as the cause. But it known that 3D movies could be used to test whether we have a healthy eye or not. If you feel dizzy when watching 3D movies it could be a sign that your eyes are damaged.
As for the accompanying parents, presbyopia is an ageing process affecting the accommodation, which facilitates near work therefore 3D movies like 2D movies do not have negative impact progression of refractive errors. According to the American Optometric Association (AOA), one between 3 people have vision problems that made them unable to enjoy the effects of three-dimensional (3D) movies. Those with visual motion hypersensitivity may experience symptoms include dizziness, headache, nausea and vomiting from watching these movies.
3D movies could be used to test whether we have a healthy eyeA check on the market shows that there are two types of glasses available for watching 3D shows, namely, the active Shutter Glass and Polarized 3D Glass. Likewise no adverse effects have been reported for Active Shutter Glass. AOA recorded 56 per cent of residents aged 18 to 38 years old has problems to synergize vision in both eyes. “The 3D effect will be felt when the brain successfully combines the shadow that is formed in both eyes. 3D movies could actually be used to test this capability,” said Dr. Dominick Maino from Illinois Eye Institutes.
The type of disorder that causes such symptoms are as follows:
- Amblyopia or lazy eye, which occurs when the ability to see in both eyes are not balanced. Ability of one eye is not as good in the other eye.
- Strabismus or crossed eyes, is when eye movement can not sync or be in rhythm.
- Convergence insufficiency or inability of the eye to focus on one point at a certain distance.
The three types of disorders are often not realized although it can be cured by an eye doctor. If at first difficult to detect, now symptoms that appear when watching a 3D movie can be used as an initial guide for three types of interference. “The 3-D technology taps into our depth perception,” said Dr. Lawrence Tychsen, ophthalmologist in chief at St. Louis Children’s Hospital. “To fully appreciate depth in a 3-D movie, you need equally clear vision in both eyes. Even a small misalignment could contribute to those symptoms of discomfort.
