Hi to everybody and welcome to Opto Tube Channel, the first Youtube ITA channel dedicated to Optometry
Today we will talk about Convergence Excess, a vergence/fusional Binocular Dysfunction in eso direction
Factors that induce Converg. Excess are excessive near visual activities or a low control of oculomotricity
Clinical data show an high AC/A ratio, near esophoria > far esophoria, nearer NPC(to examinated)
low Negative fusional Vergence, often is related to hyperopia and it could become an esotropia
Symptoms are : athenopia, low concentration, diplopia, or it could be asymptomatic
Solutions are. corrective lenses to reduce near eso, expecially in hyperopia
them plus lenses if AC/A ratio is no so high (MEM retinoscopy helps to programing bifocal spectacles)
and then visual therapy helps to improve Negative Fusional Vergence and oculomotricity
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