MYOPIA BY RAIN HEALTH CARE consultation & management center

1. MYOPIA
SHORT - SIGHTEDNESS

2. ETIOLOGY
AXIAL MYOPIA
CURVATURE MYOPIA
INDEX MYOPIA
FORWARD DISPLACEMENT OF THE LENS

3. CLINICAL TYPES
 CONGENITAL OR DEVELOPMENTAL MYOPIA
 SIMPLE MYOPIA
 PATHOLOGICAL MYOPIA

4. CONGENITAL OR DEVELOPMENTAL
MYOPIA
THE CHILD IS BORN WITH ELONGATED EYE.
THE REFRACTION MAY BE UPTO -10D
TYPICAL FUNDUS CHANGES ARE SEEN

5. SIMPLE MYOPIA
MOST COMMON
MAY BE UP TO -5D TO -6D
NO DEGENERATIVE CHANGES ARE SEEN IN THE FUNDUS
ASSOCIATED WITH GOOD VISION WITH A GOOD PROGNOSIS

6. PATHOLOGICAL MYOPIA
◦ IT IS ALSO CALLED PROGRESSIVE or DEGENERATIVE MYOPIA
◦ MYOPIA APPEARS IN CHILDHOOD( 5-10 YEARS) & INCREASING STADILY WITH AGE UPTO
25YEARS.
◦ THE FINAL AMOUNT MYOPIA MAY BE -15D TO -25D or MORE.
◦ PROGNOSIS IS USUALLY POOR.
◦ IF THE MYOPIA IS MORE THAN -6D, it IS CALLED HIGH MYOPIA.

7. SYMPTOMS
IMPAIRED DISTANT VISION
EYE STRAIN
EXOPHORIA or DIVERGENT SQUINT.
BLACK FLOATERS
DELAYED DARK ADAPTATION or EVEN NIGHT BLINDNESS SEEN IN PROGRESSIVE MYOPIA.
SUDDEN LOSS OF VISION DUE TO RETINAL DETACHMENTS WHICH MAY LEAD TO ULTIMATE
BLINDNESS. (especially in pathological myopia)

8. SIGNS
OPPOSITE OF THOSE FOUND IN HYPERMETROPIA.
OPHTHALMOSCOPICALLY– general fundus, peripheral retina, incidence of open-angle
glaucoma.
complications
 Retinal detachments
 Primary open angle glaucoma
 Posterior cortical and nuclear cataract

9. TREATMENT
GLASSES
CONTACT LENS
SURGERY
LASER– photorefractive keratoplasty, LASIK.
GENERAL HYGINE

10. THANKS FOR WATCHING