Haven Opticals Limited

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Digital Retinal Examination-2

It is no longer news that the sectors operating on analogue technology have been encouraged to upgrade to digital technology. This is for obvious advantages of greater efficiency and to guarantee best results.

Imagine the marked difference seen between photographs taken by an analogue versus a digital camera! It is most likely the digital one would be preferred.

Eye care has advanced in instrumentation with sophistication in diagnostic tools. One of such advancement is in the novel introduction of digital retinal examination! This simple, painless and non invasive procedure gives a photo documentation of the retina (back of the eye that makes you see) reflecting a wider view of certain landmarks in the interior of the eye that is not possible with conventional methods.

The photo documentation of the retina can be used to screen and diagnose conditions like retinal tear/detachment, or even eye diseases like glaucoma, hypertensive retinopathy, and diabetic retinopathy amongst others. Furthermore, it can be referred to in subsequent examinations to compare, monitor progression of an eye disease and manage your eye health effectively to ensure that no condition goes undetected. Additionally, it aid patients in understanding the condition of the eye when reviewed with their eye doctor and can be made available to a specialist at another location anytime (even electronically) should the need arise.

It is therefore pertinent to note that digital retinal exam is an essential part of your comprehensive eye exam and is recommended for all patients at least once per year.

So when next you make that visit to your eye doctor, request for a digital retinal exam!



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Computer Vision Syndrome Part 2

Tired looking office worker

Tired looking office worker

In our previous write-up, we discussed the meaning of computer vision syndrome (CVS) and the symptoms that accompany the condition. In this concluding part, we look at practical ways to manage computer vision syndrome.


  • POSITION OF COMPUTER/SMART DEVICE SCREEN: Place monitor directly in front of you, not off to one side. It should be about 20 – 28 inches away from you, placed not too high or blow preferably 15 – 20 degrees below eye level
  • CONTRAST: Adjust contrast between the background and characters on the screen and even brightness
  • REFERENCE MATERIALS: Place materials above the keyboard and below the monitor/screen so you do not move your head to look from document to screen. Get a document holder that is well lit beside the monitor
  • LIGHTING: Use fewer bulbs, fluorescent bulbs or bulbs of lower wattage in addition to window blinds or drapes to reduce glare from overhead lighting or windows
  • ANTIGLARE: Use antiglare screens for monitors that are compatible or special lenses from eye doctor. Sunglasses not ideal!
  • SEATING POSITION: Good seating position with back straight and shoulders back. Right chair height and adjusted so that your arms are parallel to the floor when you type. Feet should also be flat on the floor or on footstool.
  • REST BREAKS: Rest eyes for 15 minutes after 2hours of continuous computer use. Alternatively, for every 20minutes of computer viewing, focus on an object 20feet away for 20seconds (the 20-20-20 rule)
  • BLINKING: Blink regularly to avoid dry eyes
  • Regular visits with an eye doctor for your eye and visual needs: Even if you don’t need glasses or contact lenses for daily activities, you may need them for computer or device use. An eye checkup to get the right prescription can help prevent pain in the neck, shoulders or back that results from contorting your body to see the screen.

In conclusion, aside from the physical discomfort you may experience from the symptoms, computer vision syndrome (CVS) can have a lasting effect on your vision even after stopping work at a computer. The time to act is now!!!!!!!!

Dr Ukachukwu F.U


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Computer Vision Syndrome Part 1

Computer-Vision-SydromeCertain expressions like JET AGE’, ‘INFORMATION COMMUNICATION TECHNOLOGY (ICT)’, and ‘GLOBAL VILLAGE’ may sound familiar. One thing that is common with these expressions is COMPUTER! Only recently, there has been a high enthusiasm for the use of smart devices such as tablets, I pads and phones howbeit at the expense of our eyes. The use of computers and smart devices are not without consequences.

Computer vision syndrome (CVS) is a group of eye and vision-related problems arising from prolonged and extended period of computer use and by extension smart devices. It has also been dubbed “digital eye strain” in some quarters. According to statistics, 90% of people who spend an average of 3 or more hours on the computer experience computer vision syndrome. Obvious differences exist between reading a book and viewing a computer. In contrast to reading a book, there is glare and reflections, reduced level of contrast, increased viewing distance (and angle), and letters/characters are not precise or sharply defined on the computer screen. All these place additional visual demand on the user of the computer and smart devices.

Symptoms experienced by people with CVS includes one or more of the following: headaches, eyestrain, blurred vision, redness of the eyes, irritation of the eyes, dry eyes, double vision, neck and/or shoulder pain, fatigue, light sensitivity, burning eyes, difficulty refocusing the eyes etc.

Certain eye and environmental/office conditions can contribute to the development or even aggravates CVS. The eye conditions includes uncorrected vision problems like farsightedness and astigmatism, inadequate eye focusing or eye coordination abilities, aging changes of the eyes e.g. presbyopia. Environmental/office conditions include improper viewing distance, improper light conditions (overhead lighting or glare), improper seating posture, air moving past the eyes e.g. from vents or fan etc.

In our next write-up, the management of computer vision syndrome (CVS) will be addressed.

Dr Ukachukwu F. U

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Alternative To Glasses

People who do not see clearly at far, at near or even at both distances may require glasses to help them see.

These errors (refractive errors) of the eye arise from improper focusing of light or images by the eye which affects how well we see.

The type and magnitude of the error however, determines the kind of glasses that is prescribed by the eye doctor.

Often times the glasses may have to be worn constantly and this may prove quite challenging to you for obvious reasons ranging from having to appear on glasses at every occasion or even the unsightly appearance of the lens thickness.

The alternative is that you can still keep your vision without those glasses on your face by switching to contact lenses.

Contact lenses are appropriate alternatives to glasses for those with spectacle wear concerns.

Contact lenses can be worn on the eye and are less noticeable unlike glasses

Contact lenses come in both clear and coloured forms adding variety to your look.

While contact lenses are not a replacement for glasses, they can well serve as good alternative to give you the much needed break from those glasses.

Ukachukwu Faith (O.D)


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