Diagnosis of Cataract
Those are the tests that should be do in examination of the patient with cataract. In order to diagnose cataract, your eye doctor should perform these tests:
1- Patient History
Patient with cataract complains of gradual loss of vision.
2- Visual Acuity Test
To see how much the cataract affect your vision and also who complains of sudden loss of vision the cause will not be due to cataract to compare with the post-operative vision.
3- Potential Acuity Testing
This test will give your eye doctor an idea of what your vision will be after you had cataract surgery.
4- Refraction
To determine what is the best corrected vision you might have with glasses. Some patients with mild cataract will have 20 20 vision with glasses and they prefer not to undergo cataract surgery.
5- Tonometry
Which is used to measure the intra-ocular pressure of the eye to see if you have glaucoma with cataract or just cataract.
6- Fundoscopy or Dilated Eye Exam
Which will help to examine the lens and determine what type of cataract you have, Also it will help to determine the density of the cataract and if it is clinically significant to cause decrease in vision or there is another causes behind blurring of vision.
7- Ultrasound or B-scan
Sometimes the cataract is so dense that your eye doctor will not be able to view the retina, so this test will help to rule out if there is retinal detachment or not.
Your eye doctor can order other tests according to your condition.
