Ultrasound biometry in the diagnosis of amblyopia in keratoconus.
Here, we describe a case in which A-scan ultrasound biometry was used to differentially diagnose the cause of reduced vision in a patient with keratoconus. A patient with keratoconus presented with reduced visual acuity in one eye, not improvable above 6/18 with specialist keratoconus contact lens fitting. This monocular amblyopia was attributed to previous anisometropic ametropia by the use of ultrasound biometry. The report demonstrates the usefulness of ultrasound biometry in the detection of amblyopia in circumstances in which a previous assessment of amblyopia is not possible. This information will impact upon decisions made for the future clinical management in this case, especially if vision deteriorates so that a corneal graft is required.
Assiri
Abdullah M
AM
Optometry Department, Asir Central Hospital, KSA, Cardiff University, Wales, UK. AssiriA@cf.ac.uk
Yousuf
Bakri I
BI
Woodhouse
J Margaret
JM
Quantock
Andrew J
AJ
Murphy
Paul J
PJ
D000328:Adult; D000550:Amblyopia / Q000000981:diagnostic imaging* / Q000209:etiology; D003315:Cornea / Q000000981:diagnostic imaging* / Q000473:pathology; D019781:Corneal Topography; D003937:Diagnosis, Differential; D018450:Disease Progression; D005260:Female; D006801:Humans; D007640:Keratoconus / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology; D033401:Microscopy, Acoustic / Q000379:methods*; D014792:Visual Acuity