Tuesday, 5 February 2019
Sunday, 13 January 2019
Friday, 22 June 2018
Diveeksha Eye Clinic: DO YOU HAVE VISION 20/20...?
Diveeksha Eye Clinic: DO YOU HAVE VISION 20/20...?: Visual Acuity: What is 20/20 Vision? 20/20 vision is a term used to express normal visual acuity (the clarity or sharpness...
Wednesday, 2 March 2016
DO YOU HAVE VISION 20/20...?
Visual Acuity: What is 20/20 Vision?
20/20 vision is a term used to express normal visual acuity (the clarity or sharpness of vision) measured at a distance of 20 feet. If you have 20/20 vision, you can see clearly at 20 feet what should normally be seen at that distance. If you have 20/100 vision, it means that you must be as close as 20 feet to see what a person with normal vision can see at 100 feet
Having 20/20 vision does not necessarily mean you have perfect vision. 20/20 vision only indicates the sharpness or clarity of vision at a distance. Other important vision skills, including peripheral awareness or side vision, eye coordination, depth perception, focusing ability and color vision, contribute to your overall visual ability.
Neural factors that limit acuity are located in the retina or the brain (or the pathway leading there).
Some people can see well at a distance but are unable to bring nearer objects into focus. This condition can be caused by hyperopia (farsightedness) or presbyopia (loss of focusing ability). Others can see items that are close but cannot see those far away. This condition may be caused by myopia (nearsightedness).
A comprehensive eye examination by a eye doctor can diagnose what is affecting your ability to see well. In most cases, your ophthalmologist can prescribe glasses, contact lenses or a vision therapy program that will help improve your vision. If the reduced vision is due to an eye disease, you may be prescribed ocular medication or another treatment.
MYTH:-Having 20/20 vision means that the eyes are perfect:
FACT:- The term "20/20" denotes a person with excellent central vision. But other types of vision-such as side vision, night vision, or color vision might be imperfect. Some potentially blinding eye disease, such as glaucoma or diabetic retinopathy, can take years to develop. During this time, they are harming parts of the inner eye, but the central vision can remain unaffected.
Friday, 15 January 2016
DARK CIRCLES UNDER THE EYES
Dark circles
under the eyes are dark blemishes around the eyes.
Causes of dark circles are:-
1. Hereditary: It means that it runs in
the family.
2. Allergies, eczema, asthma: It is
associated with frequent rubbing of eyes
3. Medications: Vasodilator drugs can
make varicose blood vessels more prominent
4. Anemia: Low hemoglobin or Iron means
not enough oxygen, sometimes seen with pregnancy or menstruation
5. Fatigue: Excessive stress, lack of
sleep or late sleep timings.
6. Age: Decreasing collagen and thinning
skin makes under eyes look darker
7. Increased pigmentation around the
eyes found in dark people and Asian .Excessive Sun exposure leading to
increased Melanin pigmentation.
When to see
a doctor:-
If discoloration and swelling appear under just one eye and seem
to get worse over time, talk to your primary care doctor. If you want a more
lasting solution than concealers and over-the-counter creams can provide, see
your dermatologist for advice.
Depending on what's causing the circles under your eyes, your
doctor may recommend prescription creams or a combination of treatments to
erase or reduce discoloration. Laser therapy or chemical peels can be helpful
in some cases. Hollows that cause shadows can be smoothed with injectable
fillers, and surgery can eliminate puffy lids.
However, dark under-eye circles usually aren't a medical
problem, and home remedies for dark circles under eyes may be all you need to
help manage this condition.
SELF CARE
Mild to moderate dark circles often respond
well to simple and inexpensive treatments, such as:
·
Cold. Try a cold compress, two chilled
teaspoons or a bag of frozen peas wrapped in a soft cloth to temporarily reduce
dilated and discolored under-eye blood vessels.
·
Extra
pillows. Elevate your
head with two or more pillows to prevent puffiness that develops when fluid
pools in your lower eyelids.
·
Extra
sleep. Although short
nights don't usually cause under-eye circles, a lack of sleep makes you paler
and more hollow-eyed, so shadows and circles you already have become more
obvious.
Friday, 6 November 2015
EYES AND FIRECRACKERS
Firecracker
injuries can cause serious and irreparable damage to vision. In India,
firecracker injuries are common during the festival of ‘Deepawali’ where traditionally;
firecrackers form an essential part of the celebrations.
Majority of
people who are involved in firecracker injuries are adolescent children, males
and commonly onlookers .Bombs followed by sparklers are most common cause of
injury. Rockets and bombs are associated with serious injury.
Not wearing
any protective eye wear is a very common mistake which we repent later.
Many of the
injuries are caused as a result of negligence of those igniting the
firecrackers. Some severe injuries are caused by malfunctioning of firecrackers.
In some cases, the attempt to reignite or recover a failed device was the cause
of injury.
Absence
of parental supervision, and failure to maintain safe distance from
firecrackers were contributory in some cases of injuries. The other major cause
of injury is the common practice of igniting firecrackers in the streets thus
exposing passers-by to injury.
If an eye injury from fireworks
occurs, remember:
- · Seek medical attention immediately.
- · Do not rub your eyes.
- · Do not rinse your eyes.
- · Do not apply pressure.
- · Do not remove any objects that are stuck in the eye.
- · Do not apply ointments or take any blood-thinning pain medications such as aspirin or ibuprofen.
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