TY - CHAP M1 - Book, Section TI - Chapter 11. Diplopia A1 - Lueder, Gregg T. PY - 2011 T2 - Pediatric Practice: Ophthalmology AB - Table Graphic Jump Location|Download (.pdf)|PrintThe Problem“I see two of things.”Common CausesPhysiological diplopiaBreakdown of phoriaCranial nerve palsyThird nerve palsyFourth nerve palsySixth nerve palsyOther CausesDecompensated childhood strabismusDuane syndromeMyasthenia gravis (discussed in ptosis chapter)KEY FINDINGSHistoryPhysiological diplopiaUsually noticed about ages 5 to 6 yearsMost common in bright, observant childrenNot bothered by symptomsBreakdown of phoriaOften no known history of strabismusDevelop strabismus and diplopia during severe illnessResolves after recovery of illnessCranial nerve palsiesThird nerve palsyHorizontal and vertical diplopiaPtosisUnequal pupils (anisocoria)Fourth nerve palsyUsually gradually worsening vertical diplopiaHead tiltSixth nerve palsyHorizontal diplopiaRecent viral illnessIdiopathic intracranial hypertensionHeadacheBrief episodes of vision loss (transient visual obscurations)Recent medication changeCorticosteroids, isotretinoic acid, othersExaminationPhysiological diplopiaNormal ophthalmic examinationNormal physical examinationBreakdown of phoriaVariable esotropia or exotropiaNo limitation of extraocular movementsCranial nerve palsiesFourth nerve palsyUsually head tiltEyes straight when head tilted to unaffected sideVertical misalignment when tilted to affected sideSixth nerve palsyEsotropiaInability to move affected eye outwardIdiopathic intracranial hypertensionObesityPapilledemaThird nerve palsyEye out and downPtosis on affected sideAnisocoria (affected pupil larger in acquired third nerve palsy)Possible other neurological signs SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/04/18 UR - accesspediatrics.mhmedical.com/content.aspx?aid=56150265 ER -