#50. Nearsightedness, myopia. Flashcards
1
Q
What is NEAR-SIGHTEDNESS / MYOPIA?
A
- Its the DIFFERENCE BTW the
a. Refractive Power
b. Axial Length of the eye - Such as PARALLEL INCIDENT Light Rays CONVERGE at the FOCAL POINT
- ANTERIOR to the RETINA
2
Q
What is the CAUSE of NEAR-SIGHTEDNESS / MYOPIA?
A
- Unknown
- Inheritance
3
Q
What are the SYMPTOMS of NEAR-SIGHTEDNESS / MYOPIA?
A
- MYOPIA SYNDROME
a. THIN Sclera
b. ELONGATION of Globe, causing SHIFT in Axes
c. DEEP Anterior Chamber
d. ATROPHY of Ciliary Muscles
e. VITREOUS Opacification
f. Retinal DETACHMENT - GLAUCOMA
4
Q
What is the TREATMENT for NEAR-SIGHTEDNESS / MYOPIA?
A
- REDUCING the EXCESSIVE Refractive Power = Giving DIVERGING / CONCAVE Lens
- Correction with CONTACT LENSES