{"id":542,"date":"2020-12-15T21:53:56","date_gmt":"2020-12-15T21:53:56","guid":{"rendered":"https:\/\/www.eyesurgeonsgroup.co.uk\/?page_id=542"},"modified":"2021-05-06T11:12:27","modified_gmt":"2021-05-06T11:12:27","slug":"retinal-artery-vein-occlusions","status":"publish","type":"page","link":"https:\/\/eyesurgeonsgroup.co.uk\/index.php\/ophthalmology-services\/retinal-artery-vein-occlusions\/","title":{"rendered":"Retinal Artery & Vein Occlusions"},"content":{"rendered":"

[et_pb_section fb_built=”1″ admin_label=”Header” _builder_version=”4.7.7″ use_background_color_gradient=”on” background_color_gradient_start=”#032f4e” background_color_gradient_end=”rgba(226,226,234,0)” background_color_gradient_type=”radial” background_color_gradient_direction_radial=”left” background_color_gradient_start_position=”49%” background_color_gradient_end_position=”56%” background_color_gradient_overlays_image=”on” background_image=”https:\/\/www.eyesurgeonsgroup.co.uk\/wp-content\/uploads\/2020\/12\/1.jpg” custom_margin=”||0px||false|false” custom_padding=”0px|0px|0px|0px|false|false”][et_pb_row _builder_version=”4.7.7″ width=”100%” module_alignment=”center” custom_margin=”|auto|0px|0px|false|false” custom_padding=”10px||0px||false|false”][et_pb_column type=”4_4″ _builder_version=”3.25″ custom_padding=”|||” custom_padding__hover=”|||”][et_pb_text _builder_version=”4.7.7″ text_font=”Montserrat||||||||” text_text_color=”#ffffff” text_font_size=”16px” text_line_height=”1.9em” header_font=”Montserrat|700|||||||” header_text_align=”left” header_text_color=”#ffffff” header_font_size=”42px” header_letter_spacing=”3px” header_line_height=”1.5em” header_6_font=”||||||||” max_width=”761px” max_width_last_edited=”off|desktop” module_alignment=”left” custom_margin=”|-168px|58px|||” custom_padding=”|82px||||” text_font_size_tablet=”” text_font_size_phone=”14px” text_font_size_last_edited=”on|desktop” header_font_size_tablet=”50px” header_font_size_phone=”32px” header_font_size_last_edited=”on|phone” inline_fonts=”Montserrat”]<\/p>\n

Retinal Artery & Vein Occlusions<\/span><\/span><\/h1>\n

We treat all conditions that effect the retina and macula, including wet and dry macular degeneration, diabetic eye disease, retinal artery and vein occlusions, retinal monitoring for hydroxychloroquine, central serous retinopathy, retinal naevi (moles), floaters, and genetic retinal disorders.<\/span><\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.4.9″ min_height=”551px” custom_margin=”15px|||||” custom_padding=”18px|||||”][et_pb_row _builder_version=”4.4.9″][et_pb_column type=”4_4″ _builder_version=”4.4.9″][et_pb_text _builder_version=”4.9.4″ text_font=”Montserrat||||||||” text_text_color=”#032f4e” header_font=”Montserrat||||||||” header_line_height=”1.8em” header_2_font=”Montserrat|600|||||||” header_2_text_color=”#032f4e” header_2_line_height=”1.5em” hover_enabled=”0″ inline_fonts=”Montserrat” sticky_enabled=”0″]<\/p>\n

Retinal Vein Occlusion<\/span><\/span><\/span><\/span><\/h2>\n

<\/span><\/p>\n

What is a Retinal Vein Occlusion (RVO)?

<\/span><\/strong>This occurs when there is a blockage in a vein inside the retina, which is the lining of the back of the eye that acts like the film in a camera. This causes \u2018fluid\u2019 to leak into the cells of the retina and can cause reduced vision as a result as the cells cannot function properly.<\/span>
<\/span>\u00a0<\/span><\/p>\n

There are 2 types of RVO<\/strong>\u00a0<\/span><\/p>\n

    \n
  1. Branch retinal vein occlusion (BRVO) \u2013 obstruction of one of the 4 veins, each of which drains about \u00bc of the blood supply to the retina.<\/span>\u00a0<\/span><\/li>\n
  2. Central retinal vein occlusion (CRVO) \u2013 a more severe form usually due to obstruction of the main vein.\u00a0<\/span><\/li>\n<\/ol>\n

    Causes;<\/strong><\/em><\/p>\n

    Th<\/span>is usually occurs in people over 50 years old,<\/span>\u00a0although can occur at younger ages.<\/span> There are some common risk factors other than age;<\/span>\u00a0<\/span><\/p>\n

      \n
    1. Diabetes<\/span><\/li>\n
    2. High blood pressure\u00a0<\/span><\/li>\n
    3. High cholesterol\u00a0<\/span><\/li>\n
    4. Glaucoma\u00a0<\/span><\/li>\n
    5. Rarely
      Blood disorders making the blood more \u2018sticky\u2019. If we think this may be a possibility in your case, we will advise seeing a specialist in blood\u00a0 \u00a0 \u00a0 \u00a0 disorders (haematologist).<\/li>\n<\/ol>\n

      <\/strong><\/p>\n

      What can happen:\u00a0<\/strong><\/p>\n

        \n
      1. The retinal cells may be damaged by the obstruction to blood flow (retinal ischaemia) \u2013 this would need monitoring and possibly retinal laser treatment to stabilise it and prevent further damage to the eye.<\/span><\/li>\n
      2. \u2018Fluid\u2019 may develop in the\u00a0center\u00a0part of the retina, which is the most sensitive part responsible for your vision when you are looking straight at an object. This is called \u2018macular oedema\u2019 and there are several treatments available.\u00a0<\/span><\/li>\n<\/ol>\n


        <\/span>Tests we perform:\u00a0<\/strong><\/p>\n

          \n
        1. Vision, check of eye pressure<\/span><\/li>\n
        2. Optical coherence tomography (OCT) \u2013 scan of the layers of the retina, very good for detecting \u2018fluid\u2019 and other problems<\/li>\n
        3. Photograph of the retina\u00a0<\/span><\/li>\n
        4. Fluorescein angiography \u2013 a yellow dye (fluorescein) is injected in your hand or arm and a series of photographs of the retina are taken with you seated at a machine with your chin in a chin-rest. If you need this, we will explain why this is recommended in your case.<\/li>\n<\/ol>\n

          <\/strong><\/p>\n

          Treatments for Macular Oedema<\/strong>\u00a0<\/span><\/p>\n

          1. Anti-VEGF medicines \u2013 Avastin, Lucentis or Eylea<\/span>\u00a0<\/span><\/p>\n

          These are given by\u00a0a\u00a0injection into the eye and initially need monthly treatment until the vision is improved as far as possible. Injections may then need to be given for some time to keep vision stable but the interval between the injections can usually be extended.<\/span>\u00a0<\/span><\/p>\n

          2. Steroid \u2013 eg. Ozurdex<\/span>\u00a0<\/span><\/p>\n

          Also given as an injection but is an implant (like a small thread) which releases the drug slowly over several months and does not need repeating for 4-6 months.<\/span>\u00a0<\/span><\/p>\n


          What can I expect:\u00a0<\/strong><\/p>\n

          50% of patients should gain significant vision.<\/span>\u00a0<\/span><\/p>\n

          20-30% may not gain vision but vision should be possible to stabilise.<\/span>\u00a0<\/span><\/p>\n


          Side-effects of treatment;\u00a0<\/strong><\/p>\n

          All treatments carry risks. The risk of complications from eye injections\u00a0<\/span>is<\/span>\u00a0very small and injections would not be recommended if the risk of the treatment was greater than the risk of monitoring without treatment and resulting in reduced vision.<\/span>\u00a0<\/span><\/p>\n


          AntiVEGF injections<\/strong>\u00a0<\/span><\/p>\n

          The risk of infection with this treatment is very low but<\/span>\u00a0<\/span>it is very important to report a<\/span>ny worsening of the vision or new symptoms \u2013 redness, sensitivity to light, pain \u2013 that occurs after an injection immediately and if unable to do so by phone, then we would advise attending an Eye Emergency department without delay.<\/span>\u00a0<\/span><\/p>\n

          I<\/span>ncreased risk of heart attack and stroke \u2013 this is very rare and particularly because the injection is only a tiny dose being administered to the eye<\/span>. However,<\/span>\u00a0if you are at risk anyway because you have other risk factors or have had previous heart attacks or stroke, then there may be a small increased risk. We wait for 3-6 months after a known heart attack or stroke before we would advise treatment.<\/span>\u00a0<\/span><\/p>\n


          <\/span>Steroid injection\u00a0<\/strong><\/p>\n

          These can cause or increase cataract in the eye although usually only if you have repeated injections, not after a single injection.<\/span>\u00a0<\/span><\/p>\n

          May also cause raised eye pressure and we would monitor for this. This occurs in about 25% of patients but only a small number need treatment and usually this is just eye drops which can be stopped once the injection wears off in 4-6 months. Rarely, the pressure may be too high to treat with drops only and a procedure to reduce pressure may be recommended (using laser or<\/span>\u00a0very rarely an operation<\/span>).<\/span><\/p>\n

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          To book an appointment please contact us by telephone or email.<\/p>\n

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