Purpose: To determine the prevalence of ptosis and its correlation with vision-related variables in Tehran population Methods: Through a stratified cluster random sampling, 160 clusters were selected proportional to the population of each municipal district of the city. All consented participants were transferred to the clinic and underwent thorough eye examination. Here we report the prevalenc...

A prospective study was carried out to estimate the incidence and severity of ptosis following cataract extraction and trabeculectomy. A postoperative ptosis of 2 mm or more was found in 6.2% of all cases. In this series the incidence of ptosis following surgery under local anaesthesia was greater than that under general anaesthesia. The aetiology and management of this complication are discussed.

IntroductIon Myasthenia gravis (MG) is an autoimmune neuromuscular disorder caused by anti‐acetylcholine receptor antibodies (AChR‐Abs) or other etiologies. Ocular symptoms were the first presentations in 40–50% of MG patients. Ptosis and diplopia were the most common symptoms of ocular MG (OMG). Limited studies demonstrated that patients presented with initial symptoms of only ptosis in 47%, o...

Myasthenia gravis is an autoimmune disorder affecting the neuromuscular junction. Ocular myasthenia gravis presents as ptosis with extraocular motility restriction and is prone to be misdiagnosed as third nerve palsy or congenital or aponeurotic ptosis. Juvenile ocular myasthenia gravis in very young children is difficult to diagnose and can be easily labeled as a case of congenital ptosis, the...

AIMS To characterise the inheritance of ptosis in one particular pedigree. METHODS The pedigree was analysed clinically and genetically to assess the mode of inheritance and to ascribe a gene locus for the condition. RESULTS Affected members of the pedigree have bilateral symmetrical congenital isolated ptosis, a condition which is linked to genetic markers on the X chromosome in this famil...

In patients presenting with eyelid ptosis the clinician considers a differential diagnosis of 3rd nerve palsy, Horner’s syndrome, mitochondrial myopathy, oculopharyngeal muscular dystrophy, levator dehiscence, myotonic dystrophy and myasthenia gravis. The presence of moment to moment fluctuation in severity of ptosis (fatigable ptosis) typically suggests a neuromuscular junction disorder of whi...

Background. Guillain-Barré syndrome (GBS) has many variants with distinct presentations. Ptosis as an initial presentation is rare. Case Report. We describe a young female with bilateral ptosis without ophthalmoplegia as the initial presentation of Guillain-Barré ptosis in an anti-GQ1b IgG antibody negative patient with a favorable outcome to intravenous immunoglobulins. Objectives. Our paper h...

The validity of Hering's law in corrective surgery for ptosis is demonstrated for the first time. It is also shown how Hering's law has been utilised in corrective surgery for unilateral ptosis to elicit a predominant response from the unoperated contralateral upper eyelid. Other implications of reciprocal innervation of the 2 upper eyelids are discussed and a tentative hypothesis is postulated...