Congenital<unk>  has long been viewed as untreatable, but medications have been discovered in recent years that show promise in some patients. In 1980, researchers discovered that a drug called baclofen could stop periodic alternating<unk> . Subsequently, gabapentin, an anticonvulsant, led to improvement in about half the patients who took it. Other drugs found to be effective against<unk>  in some patients include memantine, levetiracetam, 3,4-diaminopyridine (available in the US to eligible patients with downbeat<unk>  at no cost under an expanded access program), 4-aminopyridine, and acetazolamide. Several therapeutic approaches, such as contact lenses, drugs, surgery, and low vision rehabilitation have also been proposed. For example, it has been proposed that mini-telescopic eyeglasses suppress<unk> . Surgical treatment of congenital<unk>  is aimed at improving head posture, simulating artificial divergence, or weakening the horizontal recti muscles. Clinical trials of a surgery to treat<unk>  (known as tenotomy) concluded in 2001. Tenotomy is now being performed regularly at numerous centres around the world. The surgery aims to reduce the eye oscillations, which in turn tends to improve visual acuity. Acupuncture tests have produced conflicting evidence on its beneficial effects on the symptoms of<unk> . Benefits have been seen in treatments in which acupuncture points of the neck were used, specifically points on the sternocleidomastoid muscle. Benefits of acupuncture for treatment of<unk>  include a reduction in frequency and decreased slow phase velocities, which led to an increase in foveation duration periods both during and after treatment. By the standards of evidence-based medicine, the quality of these studies is poor (for example, Ishikawa's study had sample size of six subjects, was unblinded, and lacked proper controls), and given high quality studies showing that acupuncture has no effect beyond placebo, the results of these studies have to be considered clinically irrelevant until higher quality studies are performed. Physical or occupational therapy is also used to treat<unk> . Treatment consists of learning strategies to compensate for the impaired system. A Cochrane Review on interventions for eye movement disorders due to acquired brain injury, updated in June 2017, identified three studies of pharmacological interventions for acquired<unk>  but concluded that these studies provided insufficient evidence to guide treatment choices.
Nystagmus
Ocular tremor
Oscillopsia
Mydriasis
Pendular nystagmus
Ocular dysmetria
Horizontal gaze palsy
Ophthalmoparesis