Dense Amblyopia
Severe form of amblyopia with visual acuity of 20/200 or worse, typically associated with poor treatment prognosis.
Full Definition
Dense amblyopia represents the most severe category of amblyopia, characterized by visual acuity of 20/200 or worse in the affected eye despite optimal refractive correction. This condition typically results from severe early visual deprivation, such as dense congenital cataracts, complete ptosis, or severe anisometropia left untreated during the critical period of visual development. Dense amblyopia is associated with profound suppression, poor fixation stability, and limited potential for visual improvement even with aggressive treatment. Management requires intensive therapy protocols, including extended occlusion periods, and realistic expectations regarding visual outcomes. The condition may be irreversible if the underlying cause persisted throughout the critical period of visual development.
Usage
Usage note: Always specify the visual acuity level when documenting dense amblyopia; include the underlying etiology when known.
In Context
- "The 8-year-old patient presented with dense amblyopia of 20/400 in the right eye secondary to congenital ptosis." — Pediatric ophthalmology consultation
- "Treatment outcomes for dense amblyopia remain limited despite aggressive occlusion therapy protocols." — Amblyopia management review