Abnormal retinal correspondence
In a state of normal binocular single vision, there exists a precise physiological relationship between the corresponding points of the two retina. Thus, the foveae of two eyes act as…
CHILDHOOD BLINDNESS
A blind child is an individual aged <16 years, who has a visual acuity in the better eye of <3/60. Childhood blindness is an important public health problem in developing…
NPCB & VI
India was the first country in the world to launch the 'National Programme for Control of Blindness (NPCB)' in year 1976 as 100% centrally sponsored programme with the following goals:…
EYE BANKING
Eye bank is an organization which deals with the collectin, storage and distribution of cornea for the purpose of corneal grifting, research and supply of the eye tissue for other…
Non – Optical Devices for Low Vision
Types of non- optical devices Relative size and larger assistive devices Glare, contrast, and lighting control device Posture and comfort maintenance device Handwriting and written communication devices Medical management devices…
SUPERIOR OBLIQUE MUSCLE OVERACTION
A bilateral lesion that injures both anterior canal pathways or disinhibits both posterior canal pathways will increase prenuclear innervation to the superior oblique and inferior rectus subnuclei, resulting in a…
TREATMENT OF ANISOMETROPIA
Anisometropia means where there is significant difference in dioptoric power between two eyes, so there is unequal focus between two eyes. It's can be due to two reasons firstly congenital…
ETIOLOGY OF ANISOMETROPIA
The facts we need to know about anisometropia, that anisometropia a condition that occurs when the eyes have varryring refractive powers, which can cause eyes to focus unevenly. This condition…
BINOCULAR VISION AND APHAKIA
Binocular vision is the ability of both eyes to focus on a single object to give a clear three dimensional image to the brain. That is, we gain a single…
What is Sports Vision? | Optography
Visual skills play a vital role in sports vision. It’s an indispensable science. Vision is a critical component, just like speed and strength. An athlete always meets the peak levels…