Friday, May 31, 2013

Reasons you should not sleep while wearing your contact lenses!

Traditionally there have been two main reasons why sleeping in contact lenses can be dangerous. The first is that the cornea becomes starved of oxygen and new blood vessels will grow into the cornea. The blood vessels are not transparent like the cornea and will block your vision. With the arrival of the newer silicone based contact lenses that are oxygen permeable, this problem has been greatly minimized. However the other reason for not sleeping in contact lenses still exists. That is that metabolic waste products from the cells of the cornea get trapped under the contact lens while sleeping and cause an inflammatory reaction. This can lead to infections, ulcers, and scarring, all of which can lead to permanent vision loss.

You only have two eyes... vision is so important. Don't risk harm to one of you most important senses. If you are interested in special contact lenses which are approved for overnight wear, please give us a call.

From the Eye Doctor, Opticians and Staff of Rinkov Eyecare Centers. Providing quality comprehensive eye exams, contact lenses, glasses, sunglasses and medical treatment of eye disease. Eye exams and eyeglasses in Columbus, Ohio for over 35 years. Come see an Optometrist at one of our Columbus Ohio locations – Downtown, West Columbus, Dublin, Westerville and Reynoldsburg.

CARE : 20|20 : LIFE

*this advice is general in nature and does not constitute an exam. For specific advice, see your eye doctor or healthcare professional.*

 

 

Thursday, May 30, 2013

What does Legally Blind mean?

I can't see past the end of my nose, does that mean I am legally blind?  Not necessarily.  Legal blindness is defined by best corrected visual acuity.  This means what you are able to see through your glasses or contact lens.  If your central vision is measured to be 20/200 or less in your better seeing eye you would be considered legally blind. (Not sure what 20/200 means? Read about it here).  Legal blindness can also be defined by a restricted peripheral visual field.  The normal eye has a visual field that extends 60 degrees nasally, 100 degrees temporally, 60 superiorly, and 75 degrees inferiorly.  If a persons visual field is found to be 20 degrees or less they also would be considered legally blind.

From the Eye Doctor, Opticians and Staff of Rinkov Eyecare Centers. Providing quality comprehensive eye exams, contact lenses, glasses, sunglasses and medical treatment of eye disease. Eye exams and eyeglasses in Columbus, Ohio for over 35 years. Come see an Optometrist at one of our Columbus Ohio locations – Downtown, West Columbus, Dublin, Westerville and Reynoldsburg.

CARE : 20|20 : LIFE

*this advice is general in nature and does not constitute an exam. For specific advice, see your eye doctor or healthcare professional.*

 

Monday, May 20, 2013

What to do with a Chemical Burn on the Eye!

Preparation is very important when faced with a chemical burn involving an eye.  An immediate appointment should be made with an eye care professional to assess any damage that may result.  The first step however should be continuous irrigation of the eye for at least 30 minutes.  Because chemical burns may be caused by acids, alkalis, mace or other eye irritants, sterile saline or eyewash is the best option for irrigation.  In a non clinical setting saline may not be available in which clean water is an alternate option.   Chemicals may cause extensive damage to ocular tissues in a very quick time frame emphasizing the the need for a quick reaction and treatment. If you are in doubt of what to do or if you cannot immediately see an eye care professional, you should seek immediate medical attention.

From the Eye Doctor, Opticians and Staff of Rinkov Eyecare Centers. Providing quality comprehensive eye exams, contact lenses, glasses, sunglasses and medical treatment of eye disease. Eye exams and eyeglasses in Columbus, Ohio for over 35 years. Come see an Optometrist at one of our Columbus Ohio locations – Downtown, West Columbus, Dublin, Westerville and Reynoldsburg.

CARE : 20|20 : LIFE

*this advice is general in nature and does not constitute an exam. For specific advice, see your eye doctor or healthcare professional.

 

Wednesday, May 15, 2013

What does 20/20 really mean?



The expression '20/20 vision' is stating that a person is able to separate lines that are one minute of arc or 1.75 mm apart from a distance of 20 feet.  Therefore the person is able to read letters at 20 feet equal to what the 'normal eye' is able to see at 20 feet.  If an individual is found to have 20/40 vision that would mean at 20 feet the person is able to read what the 'normal eye' would see at 40 feet, thus having less then 'normal vision'.  Someone who has 20/15 vision is able to see at 20 feet what the 'normal eye' can only see from 15 feet away, therefore having better then 'normal vision'.  These measurements of  visual acuity are normally found by having an individual read letters from an eye chart that have been spaced out according to the distance of the testing room.

From the Eye Doctor, Opticians and Staff of Rinkov Eyecare Centers. Providing quality comprehensive eye exams, contact lenses, glasses, sunglasses and medical treatment of eye disease. Eye exams and eyeglasses in Columbus, Ohio for over 35 years. Come see an Optometrist at one of our Columbus Ohio locations – Downtown, West Columbus, Dublin, Westerville and Reynoldsburg.

CARE : 20|20 : LIFE