SLK - Contributing factors: Which factor may contribute to SLK?

• A. Improper contact lens fit, wear time, or hygiene
• B. High cholesterol
• C. Systemic hypertension
• D. Color blindness.

Answer: (A)

SLK (superior limbic keratoconjunctivitis) is driven by mechanical and inflammatory irritation at the superior limbus, often linked to contact lens wear. When a lens fits poorly, is worn too long, or isn’t kept clean, increased friction and deposits irritate the superior bulbar conjunctiva, promoting the inflammatory changes and gelatinous limbal thickening seen with SLK. That’s why improper contact lens fit, wear time, or hygiene is the contributing factor. The other factors listed—high cholesterol, systemic hypertension, or color blindness—do not directly cause SLK.