How successful is laser treatment for glaucoma?
How effective is it and how long does it last? SLT lowers the IOP by about 30% when used as initial therapy. This is comparable to the IOP lowering of the most powerful and commonly used class of glaucoma medication (prostaglandin analogs). This effect may be reduced if the patient is already on glaucoma medications.
Can glaucoma be cured by laser treatment?
However, it is important to understand that laser therapy is not a cure for glaucoma, and the eye pressure lowering effect can wear off over time. The good news is that laser treatments can be repeated, although the LiGHT study did not examine this possibility.
What visual field defects indicate glaucoma?
Relatively specific glaucomatous visual field defects (see Figure 3 for examples) include:
- a nasal step defect obeying the horizontal meridian.
- a temporal wedge defect.
- the classic arcuate defect, which is a comma-shaped extension of the blind spot.
- a paracentral defect 10–20° from the blind spot.
How long is recovery after glaucoma laser surgery?
Both filtration surgery and glaucoma laser surgery recovery periods have similar timeframes. You can expect about a month for a full recovery. Quicker recovery periods last about 3 weeks. While a more involved recovery may take up to 6 weeks time.
Can you cheat a visual field test?
Visual field defect simulations were exaggerated beyond what was reasonable. Conclusion: This study reports on whether it is possible to cheat with automatic perimetry. The different parameters analyzed by computer programs are not able to detect cheating patients.
What does an abnormal visual field test mean?
A test that shows visual field loss means that vision in some areas is not as sensitive as normal. It could be just a little vision lost in a small area, or all vision lost in large areas. The amount of vision lost and the areas affected are measured by the visual field test.
Does glaucoma come back after surgery?
Glaucoma surgery is an effective method of controlling the disease. The surgeries, however, DO NOT “cure” glaucoma. The goals of surgery are to lower the pressure so as to protect the optic nerve from continued damage. The surgeries do not restore sight which has already been lost.
What can I expect after laser glaucoma surgery?
Most people can go back to their normal daily activities the day after their laser treatment. Right after the treatment, your eye may be irritated and your vision might be blurry, so you’ll need someone to give you a ride home from the doctor’s office.
How are visual field defects related to glaucoma?
Visual field loss can be diffuse (as with cataract or corneal opacification), but more commonly there are isolated defects. The visual field defects associated with glaucoma appear to be fairly non-specific, although typical loss fits with the arrangement of the retinal ganglion cell axons within the retinal nerve fibre layer of the retina.
Which is better static or kinetic perimetry for glaucoma?
Kinetic perimetry involves the detection of moving targets and static perimetry involves the detection of a stationary target. Static testing in general is superior to kinetic perimetry in detecting slopes and scotomata (field defects), and tends to be more reliable and consistent, particularly for detecting glaucomatous visual field loss.
Are there any new technologies to detect glaucoma?
Other technologies are available and being developed in the hope that formal visual field testing will become easier, more reliable, more affordable, and more widespread – using equipment that can detect glaucoma earlier than standard perimetry. These emerging technologies include: short-wavelength (blue–yellow) automated perimetry (SWAP)
What is the name of the visual field test?
Peripheral vision test, Humphrey visual field exam, and the Goldmann visual field exam are among the other names that you may hear regarding visual field testing. What is the Purpose of the Visual Field Test?