Moorfields Bleb Grading
The bleb is assessed and characterized with respect to
i. Height
ii. Vascularity in three zones:
central bleb, peripheral bleb, and non-bleb
(1) Central bleb area: an estimation into five categories of percentages (0%, 25%, 50%, 75%, and 100%) is made of the relative size of the central demarcated area of the bleb relative to the visible conjunctival field superiorly.
Often this is confined to the area over the scleral flap; in a uniform bleb, central and peripheral estimations are congruent.
(2) Peripheral bleb area: the maximal extent of the bleb is assessed using a similar scale of five percentage estimations. This parameter assesses the maximal diffusion area of the as evidenced by slight bogginess or guttering at the edges.
(3) Bleb height: in reference to the standardized photographs, the maximal central bleb height is scaled as flat, low, moderately elevated, or maximally elevated.
(4) Vascularity: considered the most important prognostic parameter for bleb failure, this scale is applied to three areas: the central demarcated bleb, the bleb's peripheral extent of diffusion, and the surrounding non-bleb conjunctiva.
Five grades of vascularity are used: avascular, normal, mild vascularity, moderate vascularity, and severe vascularity.
Subconjunctival blood is also notated.
Five grades of vascularity are used:
i. Avascular
ii. Normal
iii. Mild vascularity
iv. Moderate vascularity
v. Severe vascularity
No comments:
Post a Comment