1. 1. Miller NR. Clinical disorders of visual integration. In: Clinical Neuro-ophthalmology. 4tli ed. Baltimore MD: Williams and Wilkins; 1982; 1 1:171.
2. 2. Goldstein JE Cogan DG. Apraxia of lid opening. Arch Ophthalmol. 1 965;73 : 1 55- 1 59.
3. 3. Jankovic J. Apraxia of eyelid opening in progressive supranuclear palsy. Ann Neurol. 1984; 15: 1 15-1 16.
4. 4. Lepore FE Davoson RC. Apraxia of eyelid opening: an involuntary levator inhibition. Neurology. 1985;35:423427
5. 5. Jankovic J. Clinical features differential diagnosis and pathogenesis of blepharospasm and cranial-cervical dystonia. In: Bosniak SC ed. Advances in Ophthalmic Plastic and Reconstructive Surgery. New York NY: Pergamon Press; 1985;4:67-82.