PURPOSE To evaluate the effect of cycloplegic mydriasis with 1% cyclopentolate and 1% tropicamide on the intraocular pressure (IOP) and refractive status of children for cycloplegic refraction and compare the [OP and refractive changes between hyperopic and myopic groups. METHODS This study was designed as a retrospective cohort study. Ninety one children received cycloplegic mydriasis. The I...

PURPOSE To report the prevalence of narrow anterior chamber angles on slit-lamp examination and the incidence of acute angle-closure glaucoma (AACG) after diagnostic mydriasis in nonselected white subjects aged 55 years and over. METHODS Of all subjects in the population-based Rotterdam Study (n = 7983), 6760 participated in the ophthalmologic examination and received both tropicamide 0.5% an...

conclusions evaluating the size of the patient’s pupils before, during and after the operation, careful history, consult, ct scan and mri would help to diagnosis. although no probable cause was found to explain the transient mydriasis in our patient. introduction unilateral mydriasis is a seriously significant finding in neurologic examinations indicating life-threatening conditions such as cer...

Ibopamine eyedrops are used in ophthalmology. This molecule is characterized by a dual mechanism of action, since it acts on both adrenergic and dopaminergic receptors. The adrenergic action is responsible for a marked mydriasis without accommodative paralysis, while the dopaminergic action promotes the production of aqueous humor. Given this dual action, ibopamine may be useful for diagnostic ...

Routine ophthalmoscopy and fundoscopy of 673 individuals revealed 42 whose irides failed to dilate to a clinically useful degree within 25 to 30 min after the administration of drops of 1% mydracil. These individuals occurred with different frequency among the Aymara, Mestizo, and non-Aymara groups which made up the sample of examinees. The phenomenon was most common among the Aymara, less comm...

Pupil asymmetry or anisocoria can have benign or malignant causes, and be categorized as acute or chronic. It can also be a normal finding in about 20% of cases. Benign episodic unilateral mydriasis is an isolated benign cause of intermittent pupil asymmetry. The exact pathophysiology is not always understood. According to one hypothesis, it is due to discordance between the sympathetic and par...