Which of the following is the least common corneal dystrophy -
Macular dystrophy
Lattice type I
Lattice type III
Granular corneal dystrophy
Macula corneal dystrophy is an autosomal recessive dystrophy characterised by appearance of dense grey opacity in the central cornea. The condition results due to accumulation of mucopolysaccharides owing to a local enzyme deficiency. It occurs in childhood (5 to 10 years) and leads to marked defective vision in early life, which usually requires penetrating keratoplasty.Reference:Comprehensive ophthalmology,AK Khurana,4th edition,page no.118
Cornea and sclera