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Strabismus - Fundamentals of Clinical Ophthalmology.pdf

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THERAPY OF STRABISMUS<br />

Figure 7.2 Black pirate patch. Can alternatively be<br />

attached to glasses<br />

Figure 7.1 Arm splints allow child to play but not<br />

remove patch<br />

long sighted and requires glasses to control the<br />

squint but refuses to wear glasses, initial use <strong>of</strong><br />

mydriatic drops daily will make the vision<br />

blurred without glasses. In this circumstance<br />

acceptance <strong>of</strong> glasses is made easier.<br />

Some young children enjoy wearing an eye<br />

patch if they feel they’re playing a character like<br />

a pirate (Figure 7.2). School-age children can be<br />

unkind about difference, calling children with<br />

glasses “four-eyes”, calling children with squint<br />

“dumb”. We’ve even known children to refuse to<br />

sit with children with visual problems. In<br />

kindergarten children are more accepting, and<br />

kindergarten teachers can do much to explain<br />

and assist the child receiving treatment. From<br />

age 6 onwards it becomes more difficult with<br />

larger classes and students are more difficult to<br />

control. In some cases children won’t wear<br />

glasses, but more frequently they flatly refuse to<br />

wear occlusion. In such cases it is our strongly<br />

held belief that occlusion should be part time<br />

and carried on out <strong>of</strong> school hours.<br />

With this regime we have plenty <strong>of</strong> experience<br />

<strong>of</strong> recovery <strong>of</strong> vision, including amongst children<br />

brought for second opinion because <strong>of</strong> refusal to<br />

accept occlusion during school hours. In young<br />

and also older children, the near vision test charts<br />

matching tests can be photocopied and parents<br />

encouraged to check progress <strong>of</strong> the occlusion<br />

tests at home. Even the letters in the phone book<br />

can be used. Children wearing glasses <strong>of</strong>ten<br />

object to occlusion if the occluder is stuck to the<br />

face. This can be avoided by the use <strong>of</strong> paper<br />

occluders attached to the glasses.<br />

With adults, the eye health pr<strong>of</strong>essional team<br />

is smaller. The strabismus specialist treating the<br />

adult may not need an assistant because the<br />

adult should be more in control <strong>of</strong> their anxieties<br />

and should be more cooperative. However,<br />

unlike children, they may be demanding in a<br />

different way, depending on their expectations.<br />

They may seek cosmetic improvement, relief <strong>of</strong><br />

double vision or seek restoration <strong>of</strong> binocular<br />

vision when this has been absent since<br />

childhood. Recent onset <strong>of</strong> symptoms in<br />

strabismus present since childhood are unlikely<br />

to be related unless there is decompensation, for<br />

example in a case <strong>of</strong> superior oblique paresis that<br />

has previously been fusing.<br />

Management <strong>of</strong> amblyopia in strabismus<br />

Management <strong>of</strong> strabismic amblyopia is a<br />

critical part <strong>of</strong> care <strong>of</strong> the strabismic infant or<br />

child. Strabismic amblyopia has a critical period<br />

more extended than in pattern deprivation<br />

amblyopia, though less than that in refractive<br />

amblyopia. It occurs during development when<br />

there is plasticity <strong>of</strong> the brain. Simple occlusion<br />

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