Try answering the following questions and see if you are you experiencing Dry Eyes!
1) Have you been using artificial tears for a long time?
2) Have you tried many types of artificial tears?
3) Are you using artificial tears often?
4) Do you feel like your use of artificial tears has increased over time?
4) Are your dry eyes affecting your daily activities?
Single Vision: Single vision lenses are used to correct distance or near vision only.
Progressive Lenses: This lens is the most benefical for your need for multiple focuses. It contains uninterrupted vision ranging from distance all the way down to the reading area. The prescription gradually changes throughout a "channel" from distance to near.
Computer Lenses: This lens is used for extensive computer use that allows you to focus on the computer screen and the desk work with more edge clarity and with less strain on your neck. An HEV anti-reflective coating will enhance comfort even more.
Bifocal Lenses: Bifocal lenses are used to correct vision at distance near when single vision no longer provides clear vision at all distances.
Trifocal Lenses: Trifocal lenses correct for three focal points; distance, intermediate and near. This style of lens has two lines that distinguish distance on the top portion, middle segment for the intermediate and bottom segment for the reading.
Plastic: This lens is also called CR-39 and is very lightweight compared to the traditional glass lens. Good scratch resistant coatings are available that reduce scratching dramatically.
Trivex: Trivex is the lightest material available. While it is impact resistant like Polycarbonate, it offers much clearer optics. Trivex absorbs 100% of UV rays.
Hi-Index Plastic: This is the lightest & thinnest plastic lens available. This lens is 25% lighter than conventional plastic and is scratch resistant. These lenses are to be cleaned and handled like the plastic lenses.
Polycarbonate: Polycarbonate lenses are thinner and lighter than plastic lenses of comparable power. They are more impact resistant than CR-39 plastic. These lenses effectively filter out 98% of the ultraviolet light. Because of the great impact resistance, these are the lenses of choice for sports or safety.
Transitions: Transitions everyday lenses are designed to be worn indoors and outdoors in place of ordinary clear lenses. They automatically adapt to changing light conditions, darkening outdoors. They are available in gray and brown and block 100% UV rays.
Vantage: Transitions Vantage Lenses are a brand new technology. Vantage lenses provide variable tint plus VARIABLE POLARIZATION. As the lens gets darker in the sun, the lens gets more polarized to help sharpen your vision. All this, and is virtually clear, worn indoors as an everyday lens.
Hi-Index Glass: This material is used when a patient insists on having glass lenses. It is thinner than conventional glass lenses. This type of lens does not offer as many options as plastic or hi-index lenses.
Glass: This is one of the oldest types of lens materials. It is highly resistant to scratches and thus very durable. They are available in clear or photochromatic. This is the heaviest material.
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