Which of the following is true about corneal haziness causes?

• A. Edema is a listed cause
• B. Cataract is a listed cause
• C. Brown corneas are caused by edema
• D. Hyphema is a listed cause

Answer: (A)

Corneal transparency depends on proper stromal hydration and a uniform collagen matrix. When the cornea becomes edematous, more water enters the stroma and the regular arrangement of collagen fibers is disrupted, causing light to scatter and the cornea to look hazy. This makes edema a direct and common listed cause of corneal haziness.

Cataract is a lens opacity, not a corneal problem, so it does not produce corneal haze. Brown corneas reflect pigment changes or chronic scarring rather than true edema of the cornea. Hyphema is blood in the anterior chamber; while it may accompany ocular disease, it does not directly cause corneal haziness since the haziness originates from the cornea itself.