Best Vitelliform Macular Dystrophy

BVMD is characterized by the subretinal accumulation of yellowish material “egg yolk-like” unique lesion in the macular area. It is a slowly progressive evolving through distinct clinical stages characterized by the progression of the to this disorder. During the distinct clinical stages and transformations of the lesions, the patient’s central vision acuity and metamorphopsia continues to decrease while the peripheral vision and dark adaptation remain normal. The electrooculogram (EOG) is always abnormal and the full field electroretinogram (ERG) is normal. It is interesting to note that both the age of onset as well as the severity of vision loss demonstrates inter and intra-familial variability

Tests Available

Forms and Documents

Test Details

BEST1
  • Confirmation of clinical diagnosis
  • To differentiate different type of Bestrophinopathies and other types of macular degeneration
  • Pre-symptomatic testing
  • Prenatal diagnosis
  • Capillary Sequencing

Ordering

403
3 weeks
2-5 mL Blood - Lavender Top Tube
Oral Rinse (30-40 mL)|Buccal Swabs

Billing

81406x1
No
Yes
  • 743.55 Congenital macular changes
  • 362.75 Other dystrophies
  • 743.56 Other retinal changes, congenital
  • 362.74 Pigmentary retinal dystrophy, Retinal dystrophy, albipunctate, Retinitis pigmentosa
  • 743.9 Specified congenital anomalies of anterior chamber, chamber angle, and related structures.
* For price inquiries please email zebras@genedx.com

References

  1. Lafaut et al., (2001) Arch Clin Exp Ophthalmol 239:575-582
  2. Seddon et al., (2001) Ophthalmology 108:2060-2067
  3. White et al., (2000) Hum Mutat 15:301-308
  4. Yardley et al., (2004) Invest Ophthalmol Vis Sci 45:3683-3689
  5. Kramer et al., (2000) Eur J Hum Genet 8:286-292
  6. Kramer et al., (2003) Hum Mutat Mutation in Brief #660 Online
  7. Burgess et al., (2009) J Med Genet 46:620-625
  8. Davidson et al., (2009) Am J Hum Genet 85:581-592
  9. Burgess et al., (2008) Am J Hum Genet 82:19-31
  10. Boon et al., (2009) Progress in Retinal and Eye Research 28:187-205