Presbyopia Flashcards
Also known as borderline presbyopia
Incipient Presbyopia
It is a physiological condition of the eye at the age of 40-50
Presbyopia
A theory that states presbyopia is due to the sclerosis of the lens to produce amplitude of accommodation
H-H-G Theory or Helmholtz-Hess-Gullstrand Theory
Give one cause of sclerosis
Nutritional changes
Action of UV rays
Exposure to intense infrared radiation
A condition where can still be overcome by hard or forced ciliary effort
Facultative Presbyopia
It is when an increase pupil size and decreased depth of field occur
Nocturnal Presbyopia
Presbys also means?
Old
It is when there is virtually no accommodative ability remains
Absolute Astigmatism
Near charr VA such as snellen’s chart should be held at what distance in cm
40 cm
A theory that states presbyopia is due to the weakening of the ciliary muscle itself
D-D-F Theory
Due to environmental and other causes, low or abnormal amplitude of accommodation is derived
Premature Presbyopia
A condition whereby the amplitude of accommodation diminishes with increase in age where clear and comfortable be vision at near point is not achievable
Presbyopia
Give two signs presbyopia
Recession of near point
Vertical wrinkles on forehead
Pupil is constricted
Near vision blurs
TRUE OR FALSE. One etiology os presbyopia is more elasticity of the lens capsule
FALSE
TRUE OR FALSE. Hyperopes have more difficulty in a presbyopia state because it their vision is originally blurry
TRUE
