COMPUTER VISION SYNDROME (CVS)

It is a term given to a condition when the eyes feel fatigued & tired as a result of working on the computers for a long period of time without breaks.

The human eyes are designed to be in a relaxed state when the eyes are used for distant vision. As working on the computers involves the use of near vision for a prolonged period of time the eyes tend to get fatigued due to the strain & this can manifest as

Over a period of time, excessive computer use can have cumulative negative effects on the user including eye focusing disorders and poor eye co-ordination. In addition, constant working from a set position can cause neck & shoulder stiffness, as well as stress headaches. This entire symptom complex is known as computer vision syndrome. If you spend more than two hours a day on the computer you are at risk of developing CVS & should take measures to prevent it.

Tips to keep the computer vision syndrome at bay.

1) Eye to screen distance : It should be at least 25 inches & preferably more.
2) Monitor tilt : The top of the monitor should be slightly farther from the eye than the bottom of the monitor.
3) Screen colour : Use dark letters on a light background i.e black characters on a white background are easiest for the eyes.Also screen brightness should be the same as the brightness of other objects in the room . Adjust screen brightness & contrast properly.
4) Screen filter : Use an anti-glare/anti- reflection screen over the monitor or have an anti reflection coating put on the spectacles to cut of excessive reflection.
5) Vertical tilt : Ensure that the viewing angle of the monitor is between 15 & 50 degrees below horizontal eye level i.e. keep the computer scree 4 to 9 inches below eye level
6) Lighting : Have ceiling suspended indirect lighting. It is important that lighting is evenly distributed & that there are no bright lights in your field of vision. Do not have your computer screen facing a window. Use blinds ,shades or curtains to control outside light& reflection . Also control the glare emitting from overhead lights.
7) Neck & back posture : Use a chair with arm rests.Note that the slight flexion (head tilt posture) causes less fatigue than head erect posture.Also keep a straight upper back with only a slight roundedness & hollow in the low back.
8) Humidity & air flow :Avoid direct flow or blast of air from A.c or fan on your eyes. Also avoid low humidity or fumes as all these conditions aggravate dry eyes
9) Breaks :Do not stare at the monitor continuously.Take short visual breaks every 20-30 mins by looking away from the monitor,specifically at a distant object or close your eyes for a minute . Also frequent blinking is necessary as this avoids strain on your eyes.
10) Exercises :Blink the eyes a few times. Close your eyes & message them behind your closed eyelids once clockwise & once anticlockwise.Take a deep breath& then open your eyes.
11) Lubricant eye drops :Use of tear substitutes maybe required to moisturize the eyes in cases of dry eyes but it is better to consult an opthalmalogist to find out the exact cause before starting any self medication.

Last, but not the least have a good quality monitor-Poor computer screens are a hazard to the eyes. Set the resolution High. Low resolution, low pixel numbers & high contrast colors can put an extra

Diabetic Eye Disease

Some facts about diabetes:

Diabetic mellitus is characterised by increased levels of blood sugar due to body’s Inability to use & store sugar. Diabetes if uncontrolled can cause problem like blindness, Heart disease, kidney failure and amputations. But by taking good care of yourself Though diet. Exercise and special medication diabetes ant its complication can be Controlled. The increased incidence of diabetes has been attributed to change in lifestyle caused By increased urbanisation, high calorie diet, decreased physical activity & strain. Another Startling fact is that diabetes is now striking at an early age among the urban population Family history of diabetes puts an individual at higher risk of developing diabetes.

1) What is diabetic eye of diseases?

Diabetic eye disease includes eye problems that may cause severe vision loss or even Blindness like diabetic retinopathy, cataract or glaucoma (increase in fluid pressure Inside the eye that lead to optic nerve damage & loss of vision.)

2) What is the most common diabetic eye disease ?

DIABETIC RETIONPATHY: It is caused by damage to the blood vessels in the retina. These vessels become fragile & get blocked, leading to water collection (Edema). Lipid deposition, retinal hemorrhages (bleeding) & formation of new blood vessels on the retina. Vision loss can occur due to water & lipid accumulation in the center of retina (diabetic maculopathy) or due to bleeding inside the eye from new blood vessels (vitreous hemorrhages ) or due to membrane formation over the retina which pulls on the retain (tractional retinal detachment)

3) What are the symptoms of diabetic retinopathy?

Often there are no symptoms in the early stage of the disease. Vision may not change until the disease become severe nor is there again pain. Gradual blurring of vision may occur if fluid leaks in the central part of the retina (the macula) bleeding in the eye can lead to black spots or floaters or total blockage of vision suddenly persons with advanced disease may find it difficult to recognise face from a distance, read fine newsprint, be intolerant to bright light.

4) Who is the most likely get diabetic retinopathy?

Anyone with diabetes for more than 10-20 years. The longer someone has diabetes, the more likely he or she will get diabetic retinopathy. Nearly 50% of all people hypertension, cardiac & renal disease & pregnancy accelerate the retinopathy changes.

5) how is diabetic retinopathy ?

Complete eye examination by dilating the pupils is important for the diagnosis. If significant changes are found, a special test called fluorescein angiography or OCT may be require to

Contact Care Lens

DO’S & DONTS

DO’S

  • Wash your hand before handling the lenses.
  • Clean your lenses in the palm of your hand instead of between your finger.
  • Keep soft lenses moist to prevent tearing. Use only recommended solution for wetting & cleaning the lenses
  • Wet lenses with solution before picking them up from a dry surface or if the lens edges have got folded on the each other.
  • Insert lenses before applying cosmetics and remove lenses before removing cosmetics.
  • Keep your contact lens case clean. Scrub the lens weekly with toothbrush & daily cleaner.
  • Change the solution in the lens case everyday
  • Carry the lens case with you with fresh solution in it all times.
  • Keep your fingernail short so as to prevent damage to your eye & the lenses
  • Remove your lenses immediately & consult your eye doctor, it you experience redness, itching irritation or pain

Don’ts

  • Do not touch the tip of contact lens bottle with your fingertip. Also do not touch your eye with eye bottle tip when instilling lubricating eye drop.
  • Do not sleep with your contact lenses on.
  • Do not splash water into the eye with contact lenses on as it can dislodge the lenses. Likewise no swimming with contact lenses on.
  • Do not slide the lens across a flat surface
  • Do not use saliva or tap water / mineral water to wet your lenses.
  • Do not hold the lens by edges hold it front to back
  • Do not water disposable lenses past their use by dates
  • Do not use contact lenses while using household clearances/dusting the house

Glaucoma

What is near vision CK?

Comprehensive eye check-up by an ophthalmologist is the best way to detect glaucoma. It includes measurement of intraocular pressure (tonometry), evaluation of drainage angel of eyes (gonioscopy), evaluation of optic nerve (ephthalmoscopy). Additional visual field tests (perimetry) are used to evaluate peripheral vision of each eye.

Who is at risk for glaucoma?

  • Patients with a family members suffering from glaucoma
  • Patients over 45 years of age
  • Patients with diabetes
  • Patients with near sightedness (hypermetrotia)
  • An injury to the eye
  • Long term steroid use
  • Repeated eye inflammations.

How is glaucoma treated?

Main treatment aims at reducing pressure in the eye. Treatment has to be aggressive so as to control the intraocular pressure to safe levels as fast as possible. Eye drops, tablets, laser and surgical measure are used to treat glaucoma. Periodic follow-up are important to evaluate whether the selected modelityot treatment is sufficiently controlling glaucoma. The treatment may need to be altered from time to time depending on the control.

Optometry Room

If there is a specific designer frame that you are looking for, please call and speak to one of our frame experts, who will be more than happy to assist you.We are proud to offer a below eyeglass lenses

  • Polycarbonate lenses
  • Bifocal & Trifocal lenses
  • Trivex lenses
  • High index plastic lenses
  • Aspheric lenses
  • Photochromic lenses
  • Polarized sunglasses

Retinal Lasers

Refractive eye surgery is any eye surgery used to improve the refractive state of the eye and decrease or eliminate dependency on glasses or contact lenses. Successful refractive eye surgery can reduce or cure common vision disorders such as

  • Myopia
  • Hyperopia
  • Astigmatism
  • Keratoconus
  • Intrastromal corneal ring segments
  • Presbyopia correction

Glaucoma

Glaucoma is a group of eye diseases which result in damage to the optic nerve and vision loss.[1] The most common type is open-angle glaucoma with less common types including closed-angle glaucoma and normal-tension glaucoma.

Open-angle glaucoma develops slowly over time and there is no pain. Side vision may begin to decrease followed by central vision resulting in blindness if not treated. Closed-angle glaucoma can present gradually or suddenly. The sudden presentation may involve severe eye pain, blurred vision, mid-dilated pupil, redness of the eye, and nausea. Vision loss from glaucoma, once it has occurred, is permanent.

Various refractive eye surgery techniques change the shape of the cornea in order to reduce the need for corrective lenses or otherwise improve the refractive state of the eye.

In many of the techniques used today, reshaping of the cornea is performed by photoablation using the excimer laser.

Orthokeratology is a method using specialized hard or rigid gas-permeable contact lenses to transiently reshape the cornea in order to improve the refractive state of the eye or reduce the need for eyeglasses and contact lenses.

Upon death or removal of an eye the cornea absorbs the aqueous humor, thickens, and becomes hazy. Transparency can be restored by putting it in a warm, well-ventilated chamber at 31 °C (88 °F, the normal temperature), allowing the fluid to leave the cornea and become transparent.

Transitions lenses are photochromic lenses that are clear until dangerous ultraviolet radiation (UV) is present. Once outdoors, the brighter the sun, the darker Transitions lenses become. They turn as dark as sunglasses by automatically reacting to the intensity of UV radiation.

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