LOW VISION
Besides age-related retinal conditions, there are many other possible causes of low vision, including conditions such as glaucoma and diabetes. Low vision may also result from cancer of the eye, albinism, stroke, eye trauma or a brain injury.
A person with low vision may
find it difficult or impossible to accomplish activities such as
reading, writing, shopping, watching television, driving a car or
recognizing faces.
Laser-assisted in situ keratomileusis (LASIK)
LASIK is a surgical procedure that uses a laser to correct nearsightedness, farsightedness, and/or astigmatism. In LASIK, a thin flap in the cornea is created using either a microkeratome blade or a femtosecond laser. The surgeon then folds back the hinged flap to access the underlying cornea (called the stroma) and removes some corneal tissue using an excimer laser.
LASIK solves myopia by correcting the corneal irregularities that cause it. Hyperopia (Farsightedness) Farsighted individuals have trouble reading up close or seeing objects near at hand. The farsighted eye is slightly shorter than a normal eye and has a flatter cornea, so distant objects focus behind the retina
GLAUCOMA
The most common type of glaucoma, primary open-angle glaucoma, is hereditary. If members of your immediate family have glaucoma, you are at a much higher risk than the rest of the population. Family history increases risk of glaucoma four to nine times.
The eye disease glaucoma can cause severe headaches in some cases.
Acute angle-closure glaucoma is a medical emergency. When you're diagnosed with this condition, you'll need urgent treatment to reduce the pressure in your eye. This generally will require both medication and procedures. You may have a procedure called a laser peripheral iridotomy.
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