In general, removal is easier than insertion. Lenses are removed, not with the fingers but with the lid margins. When you are wearing lenses your lids, on closing, slip easily over the lens to be in front of it. Indeed, for most of the time your upper lids will be covering the upper part of the front surface of the lenses so that when your eyes close, the lids simply slip down over the front surfaces. If however, your lids are held so wide apart that the lid margins are above and below the edge of the lens, and if the lid margins are then pressed tightly against the cornea, any attempt to bring the lids together will tend to squeeze the contact lens off the cornea. Read the rest of this entry »
The majority of patients have become wholly relaxed about putting on and removing lenses by the time they attend for the first follow-up appointment. Many, at that stage, are able to treat the matter as a joke and refer to their former anxieties with amusement or mild embarrassment. A minority, however, are still having some difficulties and in a small proportion of cases these difficulties may persist — sometimes because the wearer has never had proper instruction. Read the rest of this entry »
This is very easy. Start by getting accustomed to touching the front of the lens while it is on your eye, and do this several times until you have overcome your nervousness. The lens acts as a kind of cushion so you will feel practically nothing. It is important, when you are doing this, not to allow your eye to roll upwards or to the side as this may carry the lens off the cornea. When you are able, quite happily, to look straight ahead with wide open lids while touching the centre of the contact lens, you are in a good position to remove the lens. Read the rest of this entry »
Q. Can the power of my hard lenses be changed, if I become more short-sighted?
A. Yes quite easily, if the equipment is to hand. But lens adjustments, and even polishing, are becoming increasingly uneconomic and most fitters will simply order new lenses for you.
Q. Can the power of soft lenses be changed? A. No. Read the rest of this entry »
A: Contact lenses are dangerous if you have a faulty lens, or do not maintain proper ocular hygiene, or don’t follow the recommended wearing and handling procedures. For instance, corneal abrasion can occur when the lens isn’t inserted properly. Corneal edema occurs if you overwear the lens. An eye infection may be caused by fingers or contact lens solutions that are contaminated. And foreign bodies can sneak under the lens and irritate the cornea.
With regard to the vast number of contact lens wearers, though, such complications have been remarkably rare. Read the rest of this entry »
In general extended-wear patients follow similar instructions concerning adaptation and wear as outlined on conventional soft contact lenses. The slight discomfort some experience at first usually disappears in a very short time; vision may fluctuate until the eye adjusts and the lens “settles in.
Other than that there’s almost no adaptation time to speak of. Patients usually go on an extended-wear regimen after one week of daily wear.
Minor symptoms to be on the lookout for are excessive tearing, redness, stinging, burning, itching, blurry vision, halos around lights, and light sensitivity. If any of these occur, remove the lens for at least three hours. If the problem ceases, your lens may be the source of the problem and you should check to see if cracks or chipped or ripped edges are present. Do not reinsert the lens if it is damaged. Put it back in its case and return it to the doctor, who will order a replacement. If you see dirt or an eyelash (or any other foreign matter) use the enzyme solution, clean, and disinfect the lens. Then you may reinsert it. If any of these problems persist, consult your doctor. Read the rest of this entry »
Contact Lenses Care .
