Corneal Neovascularisation and Scleral Contact Lenses: Why Oxygen Matters

Corneal Neovascularisation and Scleral Contact Lenses: Why Oxygen Matters

Right eye of a patient showing significant corneal neovascularisation. Left eye of the same patient, without comparable corneal neovascularisation. Corneal neovascularisation refers to the growth of new blood vessels into the cornea. The cornea is normally clear and largely avascular, which is one of the reasons it can transmit light so effectively. When blood vessels… Continue reading Corneal Neovascularisation and Scleral Contact Lenses: Why Oxygen Matters

Scleral Contact Lens Fog

What happens over the day Immediately after insertion, the reservoir is mostly preservative-free filling solution mixed with some basal tears. During wear, several things occur: Does pH change? Probably yes, but direct human data measuring reservoir pH over time is limited. Mechanistically, the post-lens reservoir can drift more acidic because: So the concern is not… Continue reading Scleral Contact Lens Fog