are a result of changes in the Vitreous Body, the colloidal gel that occupies most of the hollow sphere of the eye. Aside from maintaining good nutrition, taking anti-oxidant vitamins, and following a healthy lifestyle, Ophthalmologists have no specific answer on how to prevent them. 

But there is a proven treatment. Laser has helped thousands of people. It is a reasonable alternative to vitrectomy, an operation that is available if laser can't help.

 

 

Normal Eye Anatomy

 

 

Schematic of Eye with Floaters
Posterior Vitreous Detachment	Well Suspended Mid-Vitreous Floater
Posterior Floater - Optic Nerve partially viewed on right	simulated view of stationary mid vitreous clump
Floaters in Vitreous Syneresis (liquifaction)	Optos Camera view Asteroid Bodies
Optos Laser Scan. 'Squiggles' are floaters	Optos Scan, same eye, see how they moved

عده ای  زیادی از بیمارانی که به ما مراجعه میکنند دارای مشکلاتی با کامپیوتر خود هستند . بسیاری از سردرد های آنها ناشی از استفاده نا مناسب از کامپیوتر . یا نور و فونت های نامناسب است.

۲ راه حل مناسب را به آنها همراه با دادن عینک میتوان  پیشنهاد کرد:

۱- فعال کردن بخش cleartype در microsaft windows xp

بدین ترتیب کیفیت فونت ها افزایش یافته توانایی خواندن افزایش یافته و با بهتر دیدن سر درد ها کاهش میابد

 

2-افزایش refresh rate مانیتور

این کار flicker ها را کاهش میدهد و در نتیجه سردرد کاهش میابد

DRY EYE PRODUCTS (ARTIFICIAL TEARS)

Preparations contain carboxymethyl cellulose, hydroxypropyl methylcellulose (HPMC, hypromellose), and hydroxypropyl cellulose. They contain water, salts and polymers, but lack the proteins found in natural tears.

Patients who use artificial tears more frequently than once every three hours should choose a brand without preservatives or one with special non-irritating preservatives.

Effects

Application of artificial tears every few hours can provide temporary relief from the symptoms of dry eyes. Hydroxypropyl cellulose stabilizes and thickens the precorneal tear film, and prolongs the tear film breakup time.

Usage

Artificial tears usually are the first line of treatment for dry eyes. While mild cases require application of lubricant drops four times a day, severe cases require more aggressive treatment, such as ten to twelve times a day. Thicker artificial tears can be used in severe cases, although these may temporarily blur vision.

An artificial tear insert such as Lacrisert which contains hydroxypropyl cellulose can also be used every morning.

Precautions

Drops for red eyes can make the eyes even more dry. If wearing contact lenses, rewetting or lubricating drops specifically for contact lenses should be used. Other types of drops may contain ingredients that damage the lens.

Adverse effects

Possible adverse effects of carboxymethyl cellulose and other similar lubricants include eye pain, irritation, continued redness, or vision changes.[1] Use should be discontinued if any of them occur. Those of hydroxypropyl cellulose include hyperaemia, photophobia, stickiness of eyelashes, discomfort, and irritation.

Artificial tears have no reported interactions. A documented contraindication of artificial tears is hypersensitivity.