OPTX Optometry - Los Angeles & Valencia

What is LASIK surgery?

LASIK stands for Laser In Situ Keratomileusis. It is a form of refractive surgery, which corrects near or far-sightedness and Astigmatism. It cannot correct Presbyopia, but treatment is sometimes aimed at leaving one eye slightly short-sighted in order to account for this condition. For more information on presbyopia, see our Optical Terms section. LASIK can only be performed by an eye surgeon.

At the start of spring I can't wear my contact lenses comfortably as my eyes itch - why is this?

You are probably suffering from an eye allergy. Spring often brings about more sneezing and increased pollen counts along with all the daffodils. Certain susceptible individuals will experience a reaction in the eyes and an allergic conjunctivitis results. The itching is usually confined to the upper and/or lower lids and possibly the corner of the eye closest to your nose. If you wear contact lenses, the best thing to do is switch to spectacles for the duration of the allergy and buy a small supply of daily disposable lenses so that you can use them for a few hours out in the evening if you are desperate. Daily disposables would be the best lens type if your allergies are fairly chronic and you refuse to wear glasses. For relief from the itching certain anti-histamine containing drops can be bought from your local pharmacy. Most cannot be used in conjunction with contact lenses. Other types of drops can be used over a sustained period of time to strengthen the membranes of the cells that cause the symptoms of allergy. These drops have a longer-term effect and are called mast-cell stabilizers. The active ingredient is usually sodium cromoglycate. Ask your Optometrist or pharmacist for more information.

Why do we become more "far-sighted" as we grow older?

This is due to a progressive change that occurs within the natural lens of the eye and is called Presbyopia. Although similar to far-sightedness in its effect, these two conditions are not identical. Please see far-sightedness and presbyopia for more information.

What is the difference between a squint and astigmatism?

A squint is when one eye is turned either up, down, in or out relative to the other eye. The term 'lazy eye' is sometimes used when the turn is not detected at an early age and left uncorrected. It is essential that any parents noting a turn in their child's eye have them assessed by an Optometrist or eye doctor as soon as possible. The sooner it is treated the better the prognosis for use of this eye in later years. By the time the child has reached 9 years of age, it may already be too late.

Squints are sometimes confused with Astigmatism. Astigmatism is a condition where the shape of the eye is like an egg, whilst a squint refers to a turn in the eye. See Sight Conditions for more information on Astigmatism.

What is glaucoma?

There are two types of adult-onset Glaucoma and both refer to an increased abnormal pressure within the eyeball. The rarer form is when an acute attack occurs. Symptoms include a painful, red eye and possible light sensitivity and nausea. The most common form of Glaucoma is the preventable chronic type. Sight is adversely affected if it is not picked up early, the long-term effect being progressively worsening tunnel vision. It is essential to have your eyes screened for glaucoma once you are over the age of 40 years as the relative risk increases from this point. Other factors increasing the risk of glaucoma are diabetes, high levels of short-sightedness, age and family history.