Cylindrical powers are those ones that are present only in a particular axis. The powers are noted by convention to be positive or negative. The axis at which the cylindrical power is required is specifically noted.can be corrected by undergoing LASIK surgery when adult
Cylindrical power in the eye is also known as astigmatism. The numbers shown in vision tests express the amount of distortion and the amount coming from each eye.
Astigmatism
It is a refractive disorder of the eye, similar to myopia and hyperopia. It means the image is distorted in sort of a cylindrical fashion. It is likely hereditary or at least developed over time. It is not contagious, and it is treatable with eyeglasses or torical contacts.
Ophthalmopathy is any disease or disorder of the eye.Glaucoma
Glaucoma
An eye disorder caused in chidhood
Primary" means that the glaucoma is not associated with a tumor, injury to the eye, or other eye disorder
Yes he suffers from cronic eye disorder
Primary" means that the glaucoma is not associated with a tumor, injury to the eye, or other eye disorder
spatial orientation
he had sight in only one eye
Macrodegeneration.