Contact Lenses Care

Hard contacts can be made more comfortable by drilling tiny holes or fenestrations through them, allowing more tears to reach the cornea. The holes are usually 0.3 mm in diameter. (Anything less than that and they become plugged with mucus; anything larger and vision is adversely affected.) They are best placed close to the center of the lens, since that is the area of the cornea that is most likely to be oxygen deprived. Because a contact lens naturally rotates on the eye, the area directly under the fenestration changes constantly, and sometimes only one hole is needed. But usually three holes are necessary. Read the rest of this entry »

Though many factors should be considered during the discussion between you and your contact lens specialist, generally, hard lenses will be the lens of choice if you:

• Must have the sharpest visual acuity possible.
• Have a high amount of astigmatism.
• Have moderately “dry eyes.”
• Are concerned about the cost.
• Use topical eye medications.
• Prefer an easy lens care system.
• Desire a durable lens.

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