Understanding diabetic retinopathy: an informative guide for patients

Written in association with: Mrs Samantha Mann
Published:
Edited by: Aoife Maguire

In this guide, I endeavour to illuminate a prevalent issue faced by many individuals grappling with diabetes: diabetic retinopathy. This piece will furnish you with crucial insights into diabetic retinopathy, encompassing its origins, manifestations, and precautionary measures. Leading consultant ophthalmologist Mrs Samantha Mann provides a guide to the condition, explaining everything you need to know.

 

 

What is diabetic retinopathy?

 

Diabetic retinopathy constitutes a complication of diabetes impacting ocular health. It transpires when elevated blood sugar levels inflict harm upon the blood vessels in the retina, the light-responsive tissue situated at the posterior of the eye. These compromised blood vessels may emit fluid or undergo haemorrhaging, culminating in visual impairments if unaddressed.

 

Understanding the underlying factors

 

The principal instigator of diabetic retinopathy remains prolonged exposure to heightened blood sugar levels. This protracted exposure engenders deterioration of the delicate blood vessels in the retina, impeding their optimal functionality. Concurrently, factors such as elevated blood pressure and cholesterol levels can exacerbate this condition.

 

Identifying warning signs

 

In its nascent stages, diabetic retinopathy may not manifest overt symptoms. Nevertheless, as the ailment advances, patients may encounter:

 

  • Blurred vision.
  • Presence of floaters or dark spots in the visual field.
  • Nocturnal vision challenges.
  • Abrupt vision loss.

 

It is imperative to promptly seek medical intervention upon experiencing any of these symptoms, as timely detection and treatment can forestall vision impairment.

 

Diagnosis and intervention

 

Diabetic retinopathy warrants diagnosis through a comprehensive ocular examination, potentially involving a dilated eye assessment to scrutinise the retina. Treatment modalities hinge upon the severity of the condition and may encompass:

 

  • Laser therapy: A technique aimed at sealing leaky blood vessels to deter further retinal damage.
  • Injection therapy: Introduction of medications into the eye to alleviate swelling and thwart the proliferation of aberrant blood vessels.
  • Vitrectomy: Surgical intervention entailing the removal of blood and scar tissue from the eye.

 

Regular ocular screenings are of paramount significance for individuals grappling with diabetes, facilitating ongoing surveillance of ocular health and early detection of diabetic retinopathy.

 

Preventive measures

 

Although diabetic retinopathy may not invariably be forestalled, adopting proactive measures can attenuate susceptibility. These measures include:

 

  • Maintaining optimal blood sugar levels through adherence to dietary, exercise, and medication regimens as prescribed by doctors.
  • Cultivating a wholesome lifestyle characterised by balanced nutrition, regular physical activity, and abstention from smoking.
  • Adhering to scheduled ocular screenings as recommended by healthcare professionals.
  • By proactively managing diabetes and prioritising ocular well-being, individuals can mitigate the risk of diabetic retinopathy and safeguard their vision for the future.

 

Remember, early detection and treatment are vital in preserving your vision. If you have diabetes, make sure to prioritise regular eye check-ups to catch any potential issues early on. Your eyesight is invaluable, so you should take care of it!

 

 

 

 

 

If you would like to book a consultation with Mrs Mann, simply visit her Top Doctors profile today.

By Mrs Samantha Mann
Ophthalmology

Mrs Samantha Mann is a leading consultant ophthalmologist specialising in medical retina who treats patients from in and around London. With over 25 years of experience, she is highly specialised in the treatment of conditions affecting the retina such as diabetic retinopathy, age-related macular degeneration, retinal vein occlusion, and central serous retinopathy. Additionally, Mrs Mann is an expert in intravitreal injections of both anti-VEGF agents and steroid implants and retinal laser treatments.   
  
In 1996, Mrs Mann qualified as a doctor from St Bartholomew’s hospital in London with distinction and first-class honours in her intercalated BSc. She then gained general medical experience as she trained in various London hospitals before pursuing a career in ophthalmology. Part of her ophthalmic rotation was spent at St Thomas’ hospital after which she spent five years as a specialist registrar and fellow at Moorfield’s Eye Hospital, during which she completed and was awarded an MD for her research into age-related macular degeneration. She was also awarded the Harcourt Medal by the Royal College of Ophthalmologists in 2001 for her performance in her final examinations. 
  
Mrs Mann is currently a consultant ophthalmologist at her NHS base, Guy’s and St Thomas’ Hospital, where she has practised since 2009. Here, she is one of three medical retinal consultants. Privately, she sees patients at the renowned London Medical Clinic. Furthermore, she is the clinical lead for South East London’s Diabetic Eye Screening Programme, which is responsible for over 120,000 patients with diabetes. She also led the production of a video entitled ‘Danny’s Story’ emphasising the importance of eye screening for patients with diabetes. 
  
In addition to her clinical work, Mrs Mann maintains a keen research interest, particularly in age-related macular disease and diabetic eye screening. She has authored numerous peer-reviewed papers. Currently, she is the principal investigator of Thomas’ Hospital’s PINNACLE study, having previously held the role in two vein occlusion treatment trials. Over the last 10 years she has had an active role in teaching and running courses for trainees and other health professionals on diabetic retinopathy, laser for diabetes, and on the progression of retinopathy in pregnancy.  She is also a Fellow of the Royal College of Ophthalmologists.   

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