How can you identify the different types of strabismus based on the eye positions shown in the image?
Esotropia: Eyes turn inward
Exotropia: Eyes turn outward
Hypotropia: Eyes turn downward
Hypertropia: Eyes turn upward
What is the name of the condition where the eyes turn outward?
Exotropia
What are the key differences between the four types of strabismus shown in the image?
Direction of eye turn: inward, outward, upward, downward
Esotropia vs Exotropia: Inward vs outward turning
Hypotropia vs Hypertropia: Downward vs upward turning
In what directions can the eyes turn in constant esotropia?
Vertically, horizontally, or diagonally
What are the four main types of strabismus shown in the image?
Esotropia (inward turning)
Exotropia (outward turning)
Hypotropia (downward turning)
Hypertropia (upward turning)
What is constant esotropia?
Condition where eyes turn inward constantly
What are the key differences between paralytic and non-paralytic squint?
Deviation: Paralytic squint has restricted deviation, non-paralytic has equal/constant deviation
Diplopia: Paralytic squint has diplopia, non-paralytic does not
Onset: Paralytic squint has sudden onset, non-paralytic has gradual onset
Compensatory head posture: Paralytic squint has it, non-paralytic does not
What is the name of the condition where the eyes turn inward?
Esotropia
What is the name of the condition shown in the second image?
Exotropia
What are the features that differentiate non-paralytic and paralytic esotropia?
Deviation:
Non-Paralytic: Constant, equal
Paralytic: Variable, dependent on gaze
Double Vision:
Non-Paralytic: No
Paralytic: Yes
Onset:
Non-Paralytic: Gradual
Paralytic: Sudden
How does paralytic esotropia differ from non-paralytic esotropia?
Paralytic shows varying deviation; non-paralytic is consistent
What is the name of the condition shown in the fourth image?
Hypertropia
What is the origin of the consecutive group of non-paralytic esotropia?
Develops after refractive correction
What is a characteristic of the residual group of non-paralytic esotropia?
Remains after surgical correction
How does non-paralytic squint typically develop?
Usually develops gradually
What is the name of the condition where the eyes turn upward?
Hypertropia
What is the name of the condition shown in the first image?
Esotropia
What is the name of the condition where the eyes turn downward?
Hypotropia
How does the deviation in non-paralytic squint behave?
Consistent in all gaze directions
What is a key characteristic of non-paralytic squint?
No double vision
What does the secondary (sensory) group of non-paralytic esotropia result from?
Vision loss in one eye
What are the differences between paralytic and non-paralytic squint?
Paralytic squint has restricted deviation in the direction of action of the paralyzed muscles, while non-paralytic squint has equal or constant deviation in all directions of gaze.
Paralytic squint has diplopia (double vision), while non-paralytic squint does not.
Paralytic squint usually has a sudden onset, while non-paralytic squint has a usually gradual onset.
Paralytic squint has a compensatory head posture, while non-paralytic squint does not.
What is the onset of a non-paralytic squint?
Usuallygradual
How does consecutive non-paralytic esotropia develop?
It develops after refractive correction or surgery
What characterizes the primary group of non-paralytic esotropia?
Present from birth with constant inward deviation
How could a healthcare provider use the information in this image to diagnose and treat different types of strabismus?
Identify the specific type of strabismus based on eye position
Determine appropriate treatment options like vision therapy, prisms, or surgery
Monitor progress and adjust treatment as needed
What is the deviation of a non-paralytic squint?
Equal or constant in all directions of gaze
What is the name of the false image shown in the image?
False image
What is the typical onset of paralytic squint?
Usually sudden onset
What is a key characteristic of paralytic squint?
Always has double vision
What is the main focus of the study material?
Identify the 4 main groups of non-paralyticorigin
In which direction do the eyes turn in primary constant esotropia?
The eyes turn inward horizontally
What is primary constant esotropia?
Inward turning of the eyes present at all times
How do the eyes appear in constant esotropia?
One or both eyes turn inward
What are the two categories of esotropia?
Paralytic and non-paralytic
What is the definition of primary non-paralytic esotropia?
Present from birth, constant inward deviation
What is a key symptom that non-paralytic esotropia typically does not cause?
Double vision
How could a person with strabismus (any type) be affected in their daily life?
Difficulty with depth perception and binocular vision
Eye strain and headaches
Social/self-esteem issues
Difficulty with tasks requiring hand-eye coordination
What does the image associated with constant esotropia illustrate?
Eyes turning inward in esotropia
Other strabismus directions: outward, downward, upward