Across 2. Closest distance between two lenses on a frame 7. Measures vertex distance 10. A unit of refractive power that is equal to the reciprocal of the focal length (in meters) of a given lens. 14. A measurement that consist of twice the longest radius 19. Signs include elevated bumps, called papillae, found on the palpebral conjunctiva of the upper lids 21. A loss of central vision due to an age related degeneration of the macular region 27. Light is focused adjacent to the area being examined. Examiner looks off to the side of the illuminated area. 31. Tough, white outer coat of the eyeball 33. Red, swollen lump at the eyelid margin caused by an infection of glands that open near the base of the eyelashes 35. Both the beam of light and the microscope are focused directly on the area being examined. Use to observed specific spot. 38. Occur with lenses that are not properly positioned 41. Condition in which the lens of the eye becomes progressively opaque, resulting in blurred vision. 42. Painless bump inside the upper or lower eyelid 43. The resulting degradation of an image that occurs when a point source of light does not result in a single point image after going through the lens or lens system 44. Measures the curvature of the cornea( primary function) 45. Farsightedness, is a common refractive error where distant objects may be seen more clearly than objects that are near. 46. When the upper eyelid droops over the eye 47. Width of lens across datum line 48. Unequal pupil sizes 49. A binocular microscope coupled with a light source, used for examining the eye 50. Grinding a portion of a lens so as to add a second optical center. Often used to create vertical prism in the lower portion of the lens for the purpose of alleviating vertical imbalance at near

Down 1. A bridge that makes the nose appear to be longer 3. A type of lens that allows the patient to see at distance, intermediate, and near. 4. The change in direction of light as it passes into a transparent medium of different index. 5. 2-3mm beam of light is directed at the limbus, so the light transilluminates through the cornea. 6. Plier used to adjust temple parallelism and temple fold 8. 3 and 9 o'clock staining-poor blinking, thick lens edge 9. Unequal image sizes of the two retina 11. A vertical misalignment evidenced by a twisting of the frame front such that the planes of the lens are out of coincidence with each other 12. Hazy or foggy vision 13. Banned in US, very shiny & easy to polish 15. When the signs of each eyes prescription are different; one plus one minus. 16. Nearsightedness 17. Seeing double vision 18. A vision disorder that occurs when the normally round cornea becomes thin and irregular (cone) shaped 20. Improper insertion, bad edge 22. Farsightedness caused by loss of elasticity of the lens of the eye, occurring typically in middle and old age. 23. The outer layer of the cornea 24. Material that some frames are made out of. Very elastic, especially when placed in water. 25. The absence of a refractive error 26. Light spread over the cornea. This gives an overall view of lashes, lids, cornea, conjunctiva, and the contact lens on the cornea. 28. Scratches are cause by foreign matter that gets trapped beneath the lens 29. How far we moved the optical center when blocking 30. Fine, vertical grayish-white lines in the posterior stroma 32. A wedge-shaped overgrowth on the medial bulbar conjunctiva 34. Measure base curve 36. A type of material where you need to cold insert the lenses. When heated it will expand and not retain its shape. 37. Corrected with base up prism 39. Put the lens in the palm of your hand. When you start to close your hand if the lens folds with your hands, the lens is fine. If the lens flares against your hands, the lens is inverted 40. Outward turning of the lid