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Ophthalmo > Hypermetropia > Flashcards

Hypermetropia Flashcards

1
Q

Another name

A

Farsightedness

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2
Q

Definition

A

Parallel rays come to focus behind retina when the eye at rest

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3
Q

Etiology (opposite to myopial etiology)

A

Axial hypermetropia: smaller axial length
refractive hypermetropia: less refractive power
Posterior dislocation of the lens and aphakia
DM (hypoglycemia)

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4
Q

Symptoms

A

Defective near vision
Early presbyopia
Accomodative asthenopia
Asymptomatic

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5
Q

Why Accomodative asthenopia

A

Due to excess use of accommodation

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6
Q

Signs of hypermetropia

A

Small globe
Small pupil
Small cornea
Shallow A/C

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7
Q

Signs of hypermetropia (fundus)

A

Tortuous retinal vessels
Blurred disc margin (pseudopapillitis)

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8
Q

Investigations

A

Autorefractometry
Retinoscopy

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9
Q

Complications of hypermetropia

A

Squint (convergent)
PCAG

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10
Q

How to treat

A

Eye glasses : spherical convex (plus) lens
Soft Contact lens
Refractive surgery

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Ophthalmo (48 decks)

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