Myopia control current treatments
Hyperopia : Often called Long-Sighted Hyperopia,farsighted, Longsighted, or hypermetropia, is a defect when the eyeball is too short or the cornea too flat. This causes difficulty focusing on near objects, and in extreme cases a sufferer to be unable to focus on objects at any distance. The need to accommodate…
The Focus is in front of the retina allowig close objects to be seen clearly but the distance is blurred.
Astigmatism most commonly caused by the cornea being oval rather than being like a socer ball this produces two focus lines seperated by 90 degrees