A patient (ii) with a flat cornea following corneal graft is fitted with the lens shown in i and iii. a. What is this lens? b. Name three other conditions that can benefit from this type of lens fitting.
a. What is this lens?
b. Name three other conditions that can benefit from this type of lens fitting.
Answer a Scleral contact lens. Answer b Primary corneal ectasia which can not be corrected with conventional rigid gas permeable lens such as advanced keratoconus, pellucid marginal degeneration and keratoglobus. High myopia and aphakia. Severe dry eye. Scleral contact lens can retention tear reservoir.
Answer a Scleral contact lens.
Answer b Primary corneal ectasia which can not be corrected with conventional rigid gas permeable lens such as advanced keratoconus, pellucid marginal degeneration and keratoglobus. High myopia and aphakia. Severe dry eye. Scleral contact lens can retention tear reservoir.
