Why Is My Vision Blurred?

Blurred vision may be an indication that your prescription of your glasses had gone up but it can also be a indication of other eye or general conditions too.  Sudden blurry of vision is NOT normal. If you experience it, consult your eye doctor immediately.

There are several reasons for the cause of blurry vision.

 1. Your eye prescription had really gone up

As simple as it sounds, yes, it could be one of the many reasons why you are experiencing blurred vision. The Optometrist determines the degree of refractive error you have by performing a test called refraction. Your optometrist present different powered lenses to find the best combination of lenses for you to see clearly.

Treatment options: Prescription glasses, contact lenses, Orthokeratology, or refractive surgery.

Refractive surgeries options: PRK (1st generation), LASIK (2nd generation), ReLEx SMILE (3rd generation)

 

  1. Vision is cloudy or blurred due to cataract

Patients aged 40 and above are at a increased risk of cataract formation. Cataracts occur when there is a build-up of proteins in the lens of your eye that makes it cloudy. Patients with cataracts may complain of reduction in vision in both distance and near vision, experiencing glares, difficulty with night vision and report that colours are not as bright as before.

Treatment options: Cataract removal surgery

 

  1. Your Cornea Shape is Changing

A condition known as keratoconus is a disorder which results in a conical abnormal bulge to the front part of the eye. Keratoconus has been shown to have associations with hereditary predisposition.  Symptoms include blurry vision, distortion, multiple images seen, sensitivity to light, and mild eye irritation. 

Treatment options: Cornea cross-linking (CXL), gas permeable contact lenses, scleral and semi-scleral lenses or corneal transplant.

 

  1. Uncontrolled diabetes

Sudden blurry of vision may be due to condition like diabetes affecting your eyes. In cases of patient with diabetes, they experience fluctuating vision, blurred vision, or even vision loss. This condition may lead to an eye disease known as diabetic retinopathy. If left untreated, it may eventually lead to blindness.

Treatment options for diabetic retinopathy: Laser Photocoagulation

 If you do experience blurred vision, schedule an eye appointment with our ophthalmologist to identify the true cause of it.

Top 6 Frequently Asked Questions About LASIK

Frequently Asked Questions About LASIK

Q1. What is LASIK surgery?

LASIK surgery is a quick and simple procedure, which is done by an eye surgeon to reshape the cornea and improve vision. The goal of this surgery is to improve the way the eyes focus light rays onto the retina.

 

Q2. How long does LASIK procedure take?

The procedure will only take less than 30 minutes to finish. It is an outpatient surgery so you can go home on the same day. No need to worry about staying at the eye care center overnight to recover from the operation.

 

Q3. Does LASIK surgery hurts?

A lot of LASIK surgery patients report little to no discomfort during and after surgery. You will not feel pain during the procedure as the surgeon will instill anaesthetic eye drops before starting the surgery. Even during the reshaping of the cornea with lasers, you will not feel any sensation. You will also be administered with pain medication should you feel discomfort after the surgery.

 

Q4. How do I know if I’m qualified to undergo LASIK?

Not all patients who are keen to do corrective surgery are suitable to undergo LASIK surgery. Your eye care specialist will help you determine whether you are qualified or not.  Here are a few general guidelines for your convenience:

  • You are least 18 years old. Vision of younger patients may still change overtime so they are not yet qualified for LASIK.
  • You are not pregnant or nursing. During these stages, your hormonal levels can affect the shape of your eyes so you may not undergo LASIK.
  • You have stable vision and eyeglass prescription for 1 year prior to surgery
  • The front and back part of your eye is healthy
  • Your cornea should have sufficient thickness
  • You do not have eye conditions such as infections, ocular herpes, eye inflammation, or severe dry eyes. These eye conditions could affect postoperative healing of your eyes.
  • You do not have unmanaged diabetes or rheumatologic conditions.

 

Q5. How much does LASIK surgery cost?

LASIK surgery can range from $3000 onwards. The price for every operation may vary, based on your eye condition and the technology used. Atlas Eye’s LASIK packages cover 3 post-operation checkups and 2 years warranty of the surgery results. ReLEx SMILE is the next generation LASIK and it range from $5000 onwards.

 

Q6. What can I expect after the surgery?

After the procedure, your eyes may feel watery, or you may feel a little discomfort for a couple of hours. This is all part of the healing process and will eventually fade away. You will have functional eyesight the night of surgery or the day after the procedure. You are advised to rest for about a day or two and to avoid strenuous activity until your eyes completely heal. Remember to arrange transport on the day of your operation as you will not be allowed to drive.

Stem Cells Regenerate Human Lens After Cataract Surgery and Restore Vision

https://i0.wp.com/i.imgur.com/FkqeSkM.pngCollaboration between scientists from mainland China, the University of California, San Diego School of Medicine and Shiley Eye Institute have developed a new, stem cell-based technique that permits remaining stem cells to regrow functional lenses after the diseased lens was removed. This treatment was initially tested in laboratory animals, but it has now been tested in a small human clinical trial. This procedure produced far fewer surgical complications than the current standard-of-care. The real boost is that this regenerative procedure resulted in regenerated lenses that had superior visual qualities in all 12 of the pediatric cataract patients who served as subjects for this clinical trial.

Kang Zhang, MD, PhD, chief of Ophthalmic Genetics, founding director of the Institute for Genomic Medicine and co-director of Biomaterials and Tissue Engineering at the Institute of Engineering in Medicine, both at UC San Diego School of Medicine, said: “An ultimate goal of stem cell research is to turn on the regenerative potential of one’s own stem cells for tissue and organ repair and disease therapy.” Zhang and his colleagues published their work in the journal Nature.

Cataracts are cloudiness over the lens of the eye that blurs vision. The lens consists mostly of water and protein. When the protein aggregates, it clouds the lens and reduces the light that reaches the retina. This clouding may become severe enough to cause blurred vision. Most age-related cataracts develop from protein clumpings. You do not have to be older to suffer from cataracts. Congenital cataracts occur at birth or shortly after birth. Scarring of the retina or prenatal damage to the eye can cause congenital cataracts. Congenital cataracts are a significant cause of blindness in children. Current treatment for congenital cataracts is limited by the age of the patient. Most pediatric patients require corrective eyewear after cataract surgery.

To address this medical need, Zhang and colleagues examined the regenerative potential of endogenous stem cells on the lens. Unlike other stem cell approaches that involve creating stem cells in the lab and introducing them back into the patient, Zhang decided to use stem cells that are already in place at the site of the injury to do the heavy lifting. In the human eye, lens epithelial stem cells or LECs generate replacement lens cells throughout a person’s life, even though their production declines with age.

Unfortunately, current cataract surgeries essentially remove LECs within the lens. Whatever cells might be left over produce disorganized regrowth in infants and no useful vision. Zhang and his colleagues first confirmed that LECs had regenerative potential. To confirm this, they used laboratory animals. With that knowledge in hand, Zhang and his collaborators devised a novel, minimally invasive surgical procedure that removes the cloudy lens, but manages to maintain the integrity of the membrane that gives the lens its required shape (the lens capsule). With the lens capsule in place, the LECs were activated to replace the missing lens.

Once again, Zhang and his team ensured that their technique worked in animals before they ever tried it on a human patient. Animals with cataracts whose lenses were extirpated, but whose lens capsules were left intact, regenerated new lenses that were devoid of cataracts and provided excellent sight. With their technique honed and ready, Zhang and others tested their procedure on very young human infants in a small human trial. They discovered that their new surgical technique allowed pre-existing LECs to efficiently regenerate functional lenses. In particular, the human trial involved 12 infants under the age of 2 treated with the new method developed by Zhang and others, and 25 similar infants receiving current standard surgical care.

The results were stark: the control group experienced a higher incidence of post-surgery inflammation, early-onset ocular hypertension and increased lens clouding, but those infants who received Zhang’s new procedure showed fewer complications and faster healing. After three months, the 12 infants who underwent the new procedure had a clear, regenerated biconvex lens in all of their eyes.

“The success of this work represents a new approach in how new human tissue or organ can be regenerated and human disease can be treated, and may have a broad impact on regenerative therapies by harnessing the regenerative power of our own body,” said Zhang.

Zhang indicated that he and his colleagues are now looking to apply what they learned in this project to tackling the issue of age-related cataracts. Age-related cataracts are the leading cause of blindness in the world. Over 20 million Americans suffer from cataracts, and more than 4 million surgeries are performed annually to replace the clouded lens with an artificial plastic lens (intraocular lens).

Despite technical advances, a large portion of patients undergoing surgery are left with suboptimal vision post-surgery and are dependent upon corrective eyewear for driving a car and/or reading a book. “We believe that our new approach will result in a paradigm shift in cataract surgery and may offer patients a safer and better treatment option in the future,” said an optimistic Zhang.

Source: Stem Cells Regenerate Human Lens After Cataract Surgery and Restore Vision