Ultralase

Laser eye surgery glossary

1. A
2. B
3. C
4. D
5. E
6. F
7. G
8. H
9. I
10. J
11. K
12. L
13. M
14. N
15. O
16. P
17. Q
18. R
19. S
20. T
21. U
22. V
23. W
24. X
25. Y
26. Z

G

Gas permeable contact lenses

A rigid type of contact lens that allows oxygen to permeate through, enabling the cornea to breathe. Gas permeable lenses (also known as RGP) need to be removed about one month prior to the laser eye surgery consultation and treatment as they can warp the corneal shape.

Ghosting

A distortion of image due to irregular healing of the corneal surface.

Glare

A complication of laser eye surgery in which the patient sees additional lustre around lights. Glare is a subjective experience that often decreases with time. Further reading

Glaucoma

Disease in which the pressure of the fluid inside the eye is too high, resulting in a loss of peripheral vision. If the condition is not diagnosed and treated, the increased pressure can damage the optic nerve and eventually lead to total blindness. Vision lost as a result of such damage cannot be restored. A person who has glaucoma may not realise it at first, because the disease often progresses with no symptoms or warning signs. Early detection through regular eye examination and prompt treatment is essential to prevent vision loss. Daily medication (usually eye drops), eye surgery, or a combination of both enables most people to control their intra-ocular pressure and retain their vision. Further reading

Globe

The eyeball.

1. A
2. B
3. C
4. D
5. E
6. F
7. G
8. H
9. I
10. J
11. K
12. L
13. M
14. N
15. O
16. P
17. Q
18. R
19. S
20. T
21. U
22. V
23. W
24. X
25. Y
26. Z