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Ocular myasthenia gravis (MG) is a disease of the neuromuscular junction resulting in hallmark variability in muscle weakness and fatigability. MG is an autoimmune disease where anomalous antibodies are produced against the naturally occurring acetylcholine receptors in voluntary muscles. MG may be limited to the muscles of the eye (ocular MG ...
Based on the affected muscle group, patients can be sub-grouped into ocular MG or generalized MG. Ocular MG is characterized by exclusively ocular symptoms, droopy eyelids, or double vision. Generalized MG has muscle weakness with a variable combination of the bulbar, axial, or limb and respiratory muscles. [54]
Eye strain, also known as asthenopia (from Greek a-sthen-opia, Ancient Greek: ἀσθενωπία, transl. weak-eye-condition ), is a common eye condition that manifests through non-specific symptoms such as fatigue, pain in or around the eyes, blurred vision, headache, and occasional double vision. [1] Symptoms often occur after long-term use ...
Specialty. Neurology, ophthalmology. Diplopia is the simultaneous perception of two images of a single object that may be displaced horizontally or vertically in relation to each other. [1] Also called double vision, it is a loss of visual focus under regular conditions, and is often voluntary.
Weakness of the eye muscles is uncommon. Some may have double vision, drooping of the eyelids and difficulty swallowing, [4] but generally only together with leg weakness; this too distinguishes LEMS from myasthenia gravis, in which eye signs are much more common. [3] In the advanced stages of the disease, weakness of the respiratory muscles ...
Fourth cranial nerve palsy or trochlear nerve palsy, is a condition affecting cranial nerve 4 (IV), [ 1] the trochlear nerve, which is one of the cranial nerves. It causes weakness or paralysis of the superior oblique muscle that it innervates. This condition often causes vertical or near vertical double vision as the weakened muscle prevents ...
Injury to the trochlear nerve cause weakness of downward eye movement with consequent vertical diplopia (double vision). The affected eye drifts upward relative to the normal eye, due to the unopposed actions of the remaining extraocular muscles. The patient sees two visual fields (one from each eye), separated vertically.
This can cause the brain to see two images or double vision. Coloboma involves missing eye tissue. Most commonly, strabismus occurs in infants and young children, but adults can also develop ...