Doctor insights on:
What Does A Contact Lens Diameter Measure
CL diameter: The diameter of a contact lens is the distance from one side to the other. Most soft contact lenses are in the general range of 14.2 mm. ...Read more
One of many: Parameters that determine how a contact lens is fit on the eye. Many manufactured contact lenses come in only one diameter. Generally it is one the least important parameters with the base curve and power (s) being much more important. ...Read more
My contact lens diameter is 14.5. Does it matter if I purchase contacts with a diameter of 14.4 or 14.6?
Not usually: The difference is negligible. You must check that the base curve (bc) and power are the same. ...Read more
My contact lens diameter is 14.5. Does it matter if I buy new contact lenses with a diameter of 14 if everything is the same (power, bc, etc)?
Probably not: It should not make a big difference but the diameter of a lens can change the fit. In general, you should stick to the lenses prescribed by your eye doctor. If you want to change lenses for whatever reason, it is best to see your doctor and get a new prescription to make sure that it is safe for you. ...Read more
Duh: The contact lens size is the diameter. ...Read more
For soft lenses: The diameter is determined by the brand of contact lens in most cases. The brand of contact lens is on your contact lens prescription. ...Read more
Depends: Each lens is designed to last a different amount of time. Some lenses are replaced daily, some two weeks, and some one month. A few lenses are replaced quarterly but these need to be enzyme cleaned weekly. The difference in lenses is how well they repel protein and other deposits. ...Read more
See the following: Most contact lenses get stuck in the upper, outer quadrant of the space between the lid and the conjunctiva. The rest of the eye spaces are too small except for hard lenses or broken lenses. The get the lens out of the usual spot, hold the upper lid up and out, and look down and in for about 14 seconds. This will stretch the conjunctiva and push out the lens. ...Read more
Depends: On the cause. It could be related to the fit, the lens material, the solutions, protein buildup, or even dry eye or allergy. Best to see an ophthalmologist to help get to the bottom of it. This is the reason that many patients opt for refractive surgery (lasik) if it cannot be resolved satisfactorily. ...Read more
Focused cleaner: Most contact solutions are multi-purpose with both a cleaner and a moisturizer built in. This was done for convenience and not necessarily best for the eye. I would recommend using a hydrogen peroxide based cleaner (ie, clear care) to clean the contacts and then a saline solution to rinse them off. This will give the maximum cleaning for both bacteria and enzymes. ...Read more
When it wears out: However you should clean your case every time you put your contacts in your eyes. Clean it by rinsing thoroughly with tap water and allowing it to air dry. Do not reuse contact lens solution. It will work only if you use new solution out of the bottle everytime you put the contacts into the case. ...Read more
No: But I can answer any specific question you have about contact lenses. ...Read more
Get a new one out of the box.
If you are new to these particular contact, you may need a tighter fit. Call your eye care provider. ...Read more
Rubbing, troubles: Inserting. Wearing contact too long. Do what tap your eye care doctor instructed you to do and you will be fine. ...Read more
GPC: Giant papillary conjunctivitis is the most common cause of sudden contact lens intolerance. It is treated with a period of contact lens discontinuation, topical steroid and anti-histamine/mast cell stabilizer, frequent artificial tears. Other issues such as dry eye or blepharitis could also be the cause of ctl intolerance. You should see your eye doctor for further evaluation. ...Read more
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