Objective 3 Flashcards
Name four risk factors for developing cataract in addition to the aging process.
SSSDUH Previous ocular surgeries Smoking Excessive exposure to UV Prolonged high-dose steroid use Diabetes Family history
Name five symptoms you may hear from patients who have cataract.
Blurred or cloudy vision Reduced acuity particularly at night More light needed in order read Visual distortions or “doubling” Increased sensitivity to light or glare Colours seem less vibrant or vision has yellowing effect
What is the yellow discoloration in nuclear cataracts called?
Brunescence
What type of cataracts have spoke-like shapes which are thicker in the periphery and this type cataract usually progresses very slowly?
Cortical
In what area does the greatest physiological ageing change that affects accommodation take place?
Crytalline lens capsule
What is the most common type of nuclear cataract that is caused by the aging process?
Senile nuclear sclerosis
What type of cataract is a significant risk factor caused by the long term use of high doses of steroid medications?
Posterior subcapsular
What disease causes physiological changes resulting in cataracts in patients when excess glucose in the aqueous enters the crystalline lens?
Diabetes
What type of cataract develops in the center of the lens, often inducing myopia and giving a patient the ability to read without correction?
Nuclear sclerosis
What type of cataract is caused by an injury to the eye ?
Traumatic
