Articles starting with 'H':
| Headaches And Your Eyes |
Headaches And Your Eyes
On occasionheadaches occur because of an eye problem.
When you suffer from a headache it is a natural assumption that your head pain is somehow associated with your eyes. In truththis is not usually the case. Most headaches are due to tensionpoor neck posturesinus troublehigh blood pressureor a spasm of the blood vesselsas in a migraine headache. Very rarelyheadaches can turn out to have a serious causesuch as a brain tumor or aneurysmbut... Read More
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| Heat and Humidity Affect LASIK Results |
Heat and Humidity Affect LASIK Results
Additional moisture in the air may decrease the laser energy absorbed by the stromathe thickest layer of tissue in the cornea.
Humidity and temperature levels can affect LASIK surgery resultsincreasing the number of people who need follow-up proceduresreport researchers from Wake Forest University Baptist Medical Center. This is the first study to show that environmental factors can affect LASIK outcomes. The result... Read More
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| Heidelberg Retina Tomograph (HRT) |
Heidelberg Retina Tomograph (HRT)
The Heidelberg Retina Tomograph (HRT) is a system that combines a laser-scanning camera and specialized software that evaluates the optic nerve.
Glaucoma is one of the leading causes of blindness throughout the world affecting millions of people. Glaucoma is a disease of the eye that causes damage to the optic nerve. Since patients are completely free of symptoms in the early stages of the diseasethey feel deceptively heal... Read More
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| Herpes Keratitis |
Herpes Keratitis
The HSV type I virus is known to affect approximately 85 to 95% of the adult population...
Herpes simplex keratitis is an eye infection caused by the herpes simplex virus (HSV)which is the same virus that causes cold sores and fever blisters near the mouth and nose. The HSV type I virus is known to affect approximately 85 to 95% of the adult populationalthough the virus usually lies dormant in a nerve that supplies the eye and skin. The virus ma... Read More
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| Hispanics More Prone To Blindness |
Hispanics More Prone To Blindness
Hispanics should get regular eye exams at least once a yearespecially if they are age 50 or older.
A recent study by the University of Southern California s Keck School of Medicinepublished this summer in the journal Ophthalmologyshows high rates of eye disease in Hispanic people. Often these eye conditions – like diabetic retinopathy and open-angle glaucoma – go unnoticed. The 6357 people in the study were pri... Read More
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| How does LASIK Work? |
How LASIK Works
© Copyright Bochner Eye Institutewww.bochner.com
Cool rays of light from the Excimer Laser reshapes the inner tissue of the cornea with up to .25 microns of accuracy.
In order for light to focus more clearly on the retinathe outer window of the eye and the cornea must be of the proper curvature. After your eye has been numbed with "eye drop" anesthesiaan eyelid speculum will be positioned to hold your eyelids open. The microkeratome is used ... Read More
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| How to Choose a Refractive Surgeon |
How To Choose a Surgeon
After having selected a surgeonmake an appointment for a consultation.
Many refractive surgery centers advertise their servicesso it can be difficult to determine which surgeons are credible. It is also tough to know if they have the necessary technology and expertise to safely conduct vision correction procedures. Your eyecare practitioner will be able to recommend a highly reputable local surgeonand you should not hesitate to call refra... Read More
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| How to Choose the Perfect Frames |
Choosing the Perfect Eyeglass Frames
Although eyeglass styles vary from year to yearthere is a standard set of principles that can help you select the perfect frames.
Besides serving a primary function of allowing people to see clearlyeyeglasses also allow wearers to express their sense of fashion. Although eyeglass styles vary from year to yearthere is a standard set of principles that can help you select the perfect frames. These guidelines work mostly accordi... Read More
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| How to Insert or Remove Your Contact Lens |
How to Insert or Remove Your Contact Lens
Most contact lens wearers laughingly remember struggling in front of a mirror the first time they tried to insert or remove their lenses. As they soon learned inserting contact lenses follows the old saying - with practice comes perfect.
For everyone from first time contact lens wearer to experienced contact users here are a few helpful tips to show you how to properly insert and remove your co... Read More
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| How to Take Care of Your New Spectacles |
Cleaning and Maintenance of Your Spectacles
Today s advanced lens materials and coatings are used to maximize vision clarityas well as extend the life of your lenses. How you take care of them will determine the life and quality of the product. Cleaning your lenses is a daily exercise that requires the use of proper products and methods to maximize the life of the lenses. Always wet your lenses before cleaning.
D... Read More
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| How to use Amsler Grid |
How To Use The Amsler Grid
To use the Amsler Gridfollow these simple instructions:
If you use reading glassesbe sure that you are wearing them.
Cover one eyeand look at the centre dot.
Keep your eye focused at all times.
Look directly at the centre dot and only at the centre dot.
All of the lines should appear straight. All the squares should be the same size.
Do this test for each eye separately.
If any area on the grid suddenly appears blurreddistorteddiscol... Read More
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| HRT / GDX - OPTIC NERVE FIBER LAYER TOMOGRAPHY |
... Read More
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| Hyperopia |
Hyperopia
Overview
Farsightednessmedically termed as hyperopia(hi-per-O-pe-ah) is a common condition that affects approximately 25 per cent of the adult population. It refers to a vision problem in which a person can see distant objects clearlybut objects at close range strain the eye s accommodative system when focusing. Farsightedness occurs when the eyeball is too short as measured from front to backor if the curvature of the cornea is insufficient. ... Read More
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| Hypertensive Retinopathy |
Hypertensive Retinopathy
When a person has high blood pressuredamage to the vessel-rich retina can occur.
Most people who work hard to maintain a healthy lifestyle tend to focus on their belliestheir legsor their arms. Little do people realize how interconnected their bodies areright down to the nervous and circulatory systems. Bad living habits do not only affect the heartlungsand liver – in trutheyes suffer greatly if they do not receive proper nut... Read More
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