{"id":1572,"date":"2025-07-04T13:00:03","date_gmt":"2025-07-04T11:00:03","guid":{"rendered":"https:\/\/magenta-gull-175109.hostingersite.com\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/"},"modified":"2025-07-04T13:00:03","modified_gmt":"2025-07-04T11:00:03","slug":"katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes","status":"publish","type":"post","link":"https:\/\/myretina.gr\/en\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/","title":{"rendered":"Diving eyes: The visibility requirements for divers"},"content":{"rendered":"

Scuba diving is one of the most exciting and adventurous activities one can experience. From exploring coral reefs to recording marine life and scientific research, divers visit wonderful underwater worlds. However, to ensure the safety and success of any diving experience, divers' visibility and eyesight play a crucial role.<\/p>\n

    \n
  1. The importance of visibility in diving<\/strong><\/li>\n<\/ol>\n

    1.1. Safety and visibility<\/strong><\/p>\n

    Visibility is one of the most important safety factors during diving. Good visibility allows divers to identify potential hazards such as dangerous animals, hazardous environments or other divers. Good visibility also facilitates navigation, communication and the performance of diving skills.<\/p>\n

    1.2. Mental comfort and enjoyment<\/strong><\/p>\n

    Visibility also affects the mental comfort of divers. Clear and bright water makes for a more pleasant experience, while low visibility can cause anxiety and communication difficulties. The enjoyment of underwater exploration depends largely on the quality of visibility.<\/p>\n

    1.3. Technical and professional diving activity<\/strong><\/p>\n

    For professional divers, such as researchers, photographers and diving instructors, maintaining high visibility is essential to perform their tasks effectively. Good eyesight and good visual perception are vital to the success of their work.<\/p>\n

      \n
    1. Factors affecting visibility under water<\/strong><\/li>\n<\/ol>\n
        \n
      • Temperature and environment<\/strong><\/li>\n<\/ul>\n

        Water affects visibility depending on the temperature and the environment. Cold water often has lower visibility due to plankton, debris and other particles. Conversely, tropical waters often offer clearer visibility.<\/p>\n

          \n
        • Flows and wind flows<\/strong><\/li>\n<\/ul>\n

          Currents and winds can stir up particles in the water, creating turbidity and reducing visibility. Diving in areas with strong currents requires more caution and special equipment.<\/p>\n

            \n
          • Turbidity and particles<\/strong><\/li>\n<\/ul>\n

            The presence of sand, sediment, plankton or other particles can dramatically reduce visibility. This often occurs after weather disasters or diving in areas of active seismic activity.<\/p>\n

              \n
            • Lighting<\/strong><\/li>\n<\/ul>\n

              Lighting plays a key role in visibility. Underwater lights help to improve visibility and bring out the colours and details of the environment.<\/p>\n

              2.5. Dive duration and depth<\/strong><\/p>\n

              Dwell time and depth also affect the quality of visibility. At greater depths, light is reduced and visibility often deteriorates.<\/p>\n

                \n
              1. Visibility requirements for divers<\/strong><\/li>\n<\/ol>\n
                  \n
                • Legal and insurance claims<\/strong><\/li>\n<\/ul>\n

                  Different countries and diving training organisations have specific requirements regarding the vision and health of prospective divers. Usually, visual acuity within certain limits and the use of corrective devices, if necessary, is required.<\/p>\n

                    \n
                  • Medical examinations and vision screening<\/strong><\/li>\n<\/ul>\n

                    Prospective divers must undergo medical examinations to ensure that there are no serious eye or general health problems that could affect the dive. The examinations shall include tests of visual acuity, colour perception and other parameters.<\/p>\n

                      \n
                    • Qualifications and certifications<\/strong><\/li>\n<\/ul>\n

                      Diving organisations such as PADI, NAUI and SSI have specific requirements for diver certification, including a vision assessment. Divers must have adequate visual potential or wear corrective glasses or contact lenses.<\/p>\n

                        \n
                      • Sight equipment<\/strong><\/li>\n<\/ul>\n

                        Corrective lenses and special diving goggles allow visually impaired divers to move and communicate safely underwater. There are also special systems and devices that integrate with diving equipment.<\/p>\n

                          \n
                        1. Technical and equipment that improves visibility<\/strong><\/li>\n<\/ol>\n
                            \n
                          • Underwater lights<\/strong><\/li>\n<\/ul>\n

                            Underwater lights are essential when diving in low visibility areas or in dark environments. They allow for a better perception of the environment and the avoidance of hazards.<\/p>\n

                              \n
                            • Lenses and remedies<\/strong><\/li>\n<\/ul>\n

                              Visually impaired divers can use special diving lenses or corrective goggles. There are also systems that integrate with the helmet or diving helmet.<\/p>\n

                                \n
                              • Communication systems<\/strong><\/li>\n<\/ul>\n

                                Communication devices help divers to communicate effectively, especially in low visibility environments, by allowing the exchange of signals and avoiding false commands.<\/p>\n

                                  \n
                                • Anti-glare and anti-glare glasses<\/strong><\/li>\n<\/ul>\n

                                  Anti-glare systems and special goggles help to avoid fogging and ensure clear vision during the dive.<\/p>\n

                                    \n
                                  1. Training and practices to improve visibility<\/strong><\/li>\n<\/ol>\n

                                    5.1.Training in navigation and communication<\/strong><\/p>\n

                                    Instructors teach divers how to manage low visibility, how to use lights and signals, and how to navigate safely.<\/p>\n

                                    5.2. Vision improvement exercises<\/strong><\/p>\n

                                    Divers can practise techniques to help improve visibility, such as the correct use of flashlights, light management and familiarity with the environment.<\/p>\n

                                    5.3. Preparation and inspection of equipment<\/strong><\/p>\n

                                    Before each dive, it is important to check the equipment, especially the lights and corrective devices, to ensure that they are in perfect working order.<\/p>\n

                                    6. Challenges and solutions in low visibility diving<\/strong><\/p>\n

                                    6.1.Challenges<\/strong><\/p>\n

                                      \n
                                    • Low visibility and opacity: Reduces the ability to identify hazards and navigate.<\/li>\n
                                    • Unusual environments: Underwater caves, shipwrecks and dark depths increase the difficulty.<\/li>\n
                                    • Psychological pressure: A sense of isolation and difficulty in communicating cause stress.<\/li>\n<\/ul>\n

                                      6.2. Solutions and strategies<\/strong><\/p>\n

                                        \n
                                      • Use of good lighting: High quality underwater lights and lenses.<\/li>\n
                                      • Training in survival techniques: e.g., how to read signals, how to keep calm.<\/li>\n
                                      • Selection of appropriate equipment: Lenses, goggles and communication systems.<\/li>\n
                                      • Preparation and planning: before the dive, proper preparation and selection of suitable sites.<\/li>\n<\/ul>\n

                                        7. Advice for divers about vision<\/strong><\/p>\n

                                          \n
                                        • Regular medical examinations: To ensure that their vision is in good condition.<\/li>\n
                                        • Use of corrective devices: contact lenses or diving goggles.<\/li>\n
                                        • Good quality equipment: Investment in lights and communication systems.<\/li>\n
                                        • Low visibility training: Participation in special seminars and courses.<\/li>\n
                                        • Careful selection of dive sites: Avoid areas with very low visibility if you are not experienced.<\/li>\n<\/ul>\n

                                          Visibility is one of the most important factors for safe and successful diving. Divers must understand the visibility requirements, prepare properly and use the correct equipment. With proper training, technology and attention, they can enjoy the underwater world safely and enjoyably, even in environments with limited visibility.<\/p>","protected":false},"excerpt":{"rendered":"

                                          \u039f\u03b9 \u03ba\u03b1\u03c4\u03b1\u03b4\u03cd\u03c3\u03b5\u03b9\u03c2 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03bf\u03cd\u03bd \u03bc\u03b9\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c0\u03b9\u03bf \u03c3\u03c5\u03bd\u03b1\u03c1\u03c0\u03b1\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03b5\u03c1\u03b9\u03c0\u03b5\u03c4\u03b5\u03b9\u03ce\u03b4\u03b5\u03b9\u03c2 \u03b4\u03c1\u03b1\u03c3\u03c4\u03b7\u03c1\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b2\u03b9\u03ce\u03c3\u03b5\u03b9 \u03ba\u03b1\u03bd\u03b5\u03af\u03c2. \u0391\u03c0\u03cc \u03c4\u03b7\u03bd \u03b5\u03be\u03b5\u03c1\u03b5\u03cd\u03bd\u03b7\u03c3\u03b7 \u03ba\u03bf\u03c1\u03b1\u03bb\u03bb\u03b9\u03bf\u03b3\u03b5\u03bd\u03ce\u03bd \u03c5\u03c6\u03ac\u03bb\u03c9\u03bd \u03bc\u03ad\u03c7\u03c1\u03b9 \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae \u03b8\u03b1\u03bb\u03ac\u03c3\u03c3\u03b9\u03b1\u03c2 \u03b6\u03c9\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c3\u03c4\u03b7\u03bc\u03bf\u03bd\u03b9\u03ba\u03ae \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1, \u03bf\u03b9 \u03b4\u03cd\u03c4\u03b5\u03c2 \u03b5\u03c0\u03b9\u03c3\u03ba\u03ad\u03c0\u03c4\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c5\u03c0\u03ad\u03c1\u03bf\u03c7\u03bf\u03c5\u03c2 \u03c5\u03c0\u03bf\u03b2\u03c1\u03cd\u03c7\u03b9\u03bf\u03c5\u03c2 \u03ba\u03cc\u03c3\u03bc\u03bf\u03c5\u03c2. \u03a9\u03c3\u03c4\u03cc\u03c3\u03bf, \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03b9\u03c3\u03c4\u03b5\u03af \u03b7 \u03b1\u03c3\u03c6\u03ac\u03bb\u03b5\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03b7 \u03b5\u03c0\u03b9\u03c4\u03c5\u03c7\u03af\u03b1 \u03ba\u03ac\u03b8\u03b5 \u03ba\u03b1\u03c4\u03b1\u03b4\u03c5\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03af\u03b1\u03c2, \u03b7 \u03bf\u03c1\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03b7 \u03cc\u03c1\u03b1\u03c3\u03b7 \u03c4\u03c9\u03bd \u03ba\u03b1\u03c4\u03b1\u03b4\u03c5\u03c4\u03ce\u03bd […]<\/p>\n","protected":false},"author":1,"featured_media":216,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-1572","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-5"],"yoast_head":"\u039a\u03b1\u03c4\u03b1\u03b4\u03c5\u03c4\u03b9\u03ba\u03ac \u03bc\u03ac\u03c4\u03b9\u03b1: \u039f\u03b9 \u03b1\u03c0\u03b1\u03b9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03bf\u03c1\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03b4\u03cd\u03c4\u03b5\u03c2 • myRetina \u03a0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf \u039f\u03c6\u03b8\u03b1\u03bb\u03bc\u03bf\u03bb\u03bf\u03b3\u03b9\u03ba\u03cc \u039a\u03ad\u03bd\u03c4\u03c1\u03bf - \u0391\u03b8\u03ae\u03bd\u03b1<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/myretina.gr\/en\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u039a\u03b1\u03c4\u03b1\u03b4\u03c5\u03c4\u03b9\u03ba\u03ac \u03bc\u03ac\u03c4\u03b9\u03b1: \u039f\u03b9 \u03b1\u03c0\u03b1\u03b9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03bf\u03c1\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03b4\u03cd\u03c4\u03b5\u03c2 • myRetina \u03a0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf \u039f\u03c6\u03b8\u03b1\u03bb\u03bc\u03bf\u03bb\u03bf\u03b3\u03b9\u03ba\u03cc \u039a\u03ad\u03bd\u03c4\u03c1\u03bf - \u0391\u03b8\u03ae\u03bd\u03b1\" \/>\n<meta property=\"og:description\" content=\"\u039f\u03b9 \u03ba\u03b1\u03c4\u03b1\u03b4\u03cd\u03c3\u03b5\u03b9\u03c2 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03bf\u03cd\u03bd \u03bc\u03b9\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c0\u03b9\u03bf \u03c3\u03c5\u03bd\u03b1\u03c1\u03c0\u03b1\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03b5\u03c1\u03b9\u03c0\u03b5\u03c4\u03b5\u03b9\u03ce\u03b4\u03b5\u03b9\u03c2 \u03b4\u03c1\u03b1\u03c3\u03c4\u03b7\u03c1\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b2\u03b9\u03ce\u03c3\u03b5\u03b9 \u03ba\u03b1\u03bd\u03b5\u03af\u03c2. \u0391\u03c0\u03cc \u03c4\u03b7\u03bd \u03b5\u03be\u03b5\u03c1\u03b5\u03cd\u03bd\u03b7\u03c3\u03b7 \u03ba\u03bf\u03c1\u03b1\u03bb\u03bb\u03b9\u03bf\u03b3\u03b5\u03bd\u03ce\u03bd \u03c5\u03c6\u03ac\u03bb\u03c9\u03bd \u03bc\u03ad\u03c7\u03c1\u03b9 \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae \u03b8\u03b1\u03bb\u03ac\u03c3\u03c3\u03b9\u03b1\u03c2 \u03b6\u03c9\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c3\u03c4\u03b7\u03bc\u03bf\u03bd\u03b9\u03ba\u03ae \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1, \u03bf\u03b9 \u03b4\u03cd\u03c4\u03b5\u03c2 \u03b5\u03c0\u03b9\u03c3\u03ba\u03ad\u03c0\u03c4\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c5\u03c0\u03ad\u03c1\u03bf\u03c7\u03bf\u03c5\u03c2 \u03c5\u03c0\u03bf\u03b2\u03c1\u03cd\u03c7\u03b9\u03bf\u03c5\u03c2 \u03ba\u03cc\u03c3\u03bc\u03bf\u03c5\u03c2. \u03a9\u03c3\u03c4\u03cc\u03c3\u03bf, \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03b9\u03c3\u03c4\u03b5\u03af \u03b7 \u03b1\u03c3\u03c6\u03ac\u03bb\u03b5\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03b7 \u03b5\u03c0\u03b9\u03c4\u03c5\u03c7\u03af\u03b1 \u03ba\u03ac\u03b8\u03b5 \u03ba\u03b1\u03c4\u03b1\u03b4\u03c5\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03af\u03b1\u03c2, \u03b7 \u03bf\u03c1\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03b7 \u03cc\u03c1\u03b1\u03c3\u03b7 \u03c4\u03c9\u03bd \u03ba\u03b1\u03c4\u03b1\u03b4\u03c5\u03c4\u03ce\u03bd […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/myretina.gr\/en\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/\" \/>\n<meta property=\"og:site_name\" content=\"myRetina\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-04T11:00:03+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/myretina.gr\/wp-content\/uploads\/2025\/12\/posts-fallback.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"ILUMA Digital Agency\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"ILUMA Digital Agency\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/myretina.gr\\\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/myretina.gr\\\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\\\/\"},\"author\":{\"name\":\"ILUMA Digital Agency\",\"@id\":\"https:\\\/\\\/myretina.gr\\\/en\\\/#\\\/schema\\\/person\\\/a3469ba40972eff718c53dda408709fc\"},\"headline\":\"\u039a\u03b1\u03c4\u03b1\u03b4\u03c5\u03c4\u03b9\u03ba\u03ac \u03bc\u03ac\u03c4\u03b9\u03b1: \u039f\u03b9 \u03b1\u03c0\u03b1\u03b9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03bf\u03c1\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03b4\u03cd\u03c4\u03b5\u03c2\",\"datePublished\":\"2025-07-04T11:00:03+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/myretina.gr\\\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\\\/\"},\"wordCount\":3,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/myretina.gr\\\/en\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/myretina.gr\\\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/myretina.gr\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/posts-fallback.png\",\"articleSection\":[\"\u0395\u03c0\u03b9\u03c3\u03c4\u03b7\u03bc\u03bf\u03bd\u03b9\u03ba\u03ac \u039d\u03ad\u03b1\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/myretina.gr\\\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/myretina.gr\\\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\\\/\",\"url\":\"https:\\\/\\\/myretina.gr\\\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\\\/\",\"name\":\"\u039a\u03b1\u03c4\u03b1\u03b4\u03c5\u03c4\u03b9\u03ba\u03ac \u03bc\u03ac\u03c4\u03b9\u03b1: \u039f\u03b9 \u03b1\u03c0\u03b1\u03b9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03bf\u03c1\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03b4\u03cd\u03c4\u03b5\u03c2 • myRetina \u03a0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf \u039f\u03c6\u03b8\u03b1\u03bb\u03bc\u03bf\u03bb\u03bf\u03b3\u03b9\u03ba\u03cc \u039a\u03ad\u03bd\u03c4\u03c1\u03bf - \u0391\u03b8\u03ae\u03bd\u03b1\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/myretina.gr\\\/en\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/myretina.gr\\\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/myretina.gr\\\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/myretina.gr\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/posts-fallback.png\",\"datePublished\":\"2025-07-04T11:00:03+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/myretina.gr\\\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/myretina.gr\\\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/myretina.gr\\\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\\\/#primaryimage\",\"url\":\"https:\\\/\\\/myretina.gr\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/posts-fallback.png\",\"contentUrl\":\"https:\\\/\\\/myretina.gr\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/posts-fallback.png\",\"width\":1280,\"height\":800},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/myretina.gr\\\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/myretina.gr\\\/en\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u039a\u03b1\u03c4\u03b1\u03b4\u03c5\u03c4\u03b9\u03ba\u03ac \u03bc\u03ac\u03c4\u03b9\u03b1: \u039f\u03b9 \u03b1\u03c0\u03b1\u03b9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03bf\u03c1\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03b4\u03cd\u03c4\u03b5\u03c2\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/myretina.gr\\\/en\\\/#website\",\"url\":\"https:\\\/\\\/myretina.gr\\\/en\\\/\",\"name\":\"myRetina\",\"description\":\"\u03a0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf \u039f\u03c6\u03b8\u03b1\u03bb\u03bc\u03bf\u03bb\u03bf\u03b3\u03b9\u03ba\u03cc \u039a\u03ad\u03bd\u03c4\u03c1\u03bf - \u0391\u03b8\u03ae\u03bd\u03b1\",\"publisher\":{\"@id\":\"https:\\\/\\\/myretina.gr\\\/en\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/myretina.gr\\\/en\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/myretina.gr\\\/en\\\/#organization\",\"name\":\"myRetina\",\"url\":\"https:\\\/\\\/myretina.gr\\\/en\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/myretina.gr\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/myretina.gr\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/Final-Logo-MyRetina.png\",\"contentUrl\":\"https:\\\/\\\/myretina.gr\\\/wp-content\\\/uploads\\\/2025\\\/11\\\/Final-Logo-MyRetina.png\",\"width\":1448,\"height\":988,\"caption\":\"myRetina\"},\"image\":{\"@id\":\"https:\\\/\\\/myretina.gr\\\/en\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/myretina.gr\\\/en\\\/#\\\/schema\\\/person\\\/a3469ba40972eff718c53dda408709fc\",\"name\":\"ILUMA Digital Agency\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/70f08b7620b6cf28453deeee79a5fd77c95e4ade8cc6b3dd63b1a73a82d4c95c?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/70f08b7620b6cf28453deeee79a5fd77c95e4ade8cc6b3dd63b1a73a82d4c95c?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/70f08b7620b6cf28453deeee79a5fd77c95e4ade8cc6b3dd63b1a73a82d4c95c?s=96&d=mm&r=g\",\"caption\":\"ILUMA Digital Agency\"},\"sameAs\":[\"https:\\\/\\\/iluma.gr\"],\"url\":\"https:\\\/\\\/myretina.gr\\\/en\\\/author\\\/supportiluma-gr\\\/\"}]}<\/script>","yoast_head_json":{"title":"Diving eyes: The visibility requirements for divers - myRetina Standard Ophthalmology Center - Athens","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/myretina.gr\/en\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/","og_locale":"en_US","og_type":"article","og_title":"\u039a\u03b1\u03c4\u03b1\u03b4\u03c5\u03c4\u03b9\u03ba\u03ac \u03bc\u03ac\u03c4\u03b9\u03b1: \u039f\u03b9 \u03b1\u03c0\u03b1\u03b9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03bf\u03c1\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03b4\u03cd\u03c4\u03b5\u03c2 • myRetina \u03a0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf \u039f\u03c6\u03b8\u03b1\u03bb\u03bc\u03bf\u03bb\u03bf\u03b3\u03b9\u03ba\u03cc \u039a\u03ad\u03bd\u03c4\u03c1\u03bf - \u0391\u03b8\u03ae\u03bd\u03b1","og_description":"\u039f\u03b9 \u03ba\u03b1\u03c4\u03b1\u03b4\u03cd\u03c3\u03b5\u03b9\u03c2 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03bf\u03cd\u03bd \u03bc\u03b9\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c0\u03b9\u03bf \u03c3\u03c5\u03bd\u03b1\u03c1\u03c0\u03b1\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03b5\u03c1\u03b9\u03c0\u03b5\u03c4\u03b5\u03b9\u03ce\u03b4\u03b5\u03b9\u03c2 \u03b4\u03c1\u03b1\u03c3\u03c4\u03b7\u03c1\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c0\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b2\u03b9\u03ce\u03c3\u03b5\u03b9 \u03ba\u03b1\u03bd\u03b5\u03af\u03c2. \u0391\u03c0\u03cc \u03c4\u03b7\u03bd \u03b5\u03be\u03b5\u03c1\u03b5\u03cd\u03bd\u03b7\u03c3\u03b7 \u03ba\u03bf\u03c1\u03b1\u03bb\u03bb\u03b9\u03bf\u03b3\u03b5\u03bd\u03ce\u03bd \u03c5\u03c6\u03ac\u03bb\u03c9\u03bd \u03bc\u03ad\u03c7\u03c1\u03b9 \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae \u03b8\u03b1\u03bb\u03ac\u03c3\u03c3\u03b9\u03b1\u03c2 \u03b6\u03c9\u03ae\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c3\u03c4\u03b7\u03bc\u03bf\u03bd\u03b9\u03ba\u03ae \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1, \u03bf\u03b9 \u03b4\u03cd\u03c4\u03b5\u03c2 \u03b5\u03c0\u03b9\u03c3\u03ba\u03ad\u03c0\u03c4\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c5\u03c0\u03ad\u03c1\u03bf\u03c7\u03bf\u03c5\u03c2 \u03c5\u03c0\u03bf\u03b2\u03c1\u03cd\u03c7\u03b9\u03bf\u03c5\u03c2 \u03ba\u03cc\u03c3\u03bc\u03bf\u03c5\u03c2. \u03a9\u03c3\u03c4\u03cc\u03c3\u03bf, \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03c6\u03b1\u03bb\u03b9\u03c3\u03c4\u03b5\u03af \u03b7 \u03b1\u03c3\u03c6\u03ac\u03bb\u03b5\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03b7 \u03b5\u03c0\u03b9\u03c4\u03c5\u03c7\u03af\u03b1 \u03ba\u03ac\u03b8\u03b5 \u03ba\u03b1\u03c4\u03b1\u03b4\u03c5\u03c4\u03b9\u03ba\u03ae\u03c2 \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03af\u03b1\u03c2, \u03b7 \u03bf\u03c1\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03b7 \u03cc\u03c1\u03b1\u03c3\u03b7 \u03c4\u03c9\u03bd \u03ba\u03b1\u03c4\u03b1\u03b4\u03c5\u03c4\u03ce\u03bd […]","og_url":"https:\/\/myretina.gr\/en\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/","og_site_name":"myRetina","article_published_time":"2025-07-04T11:00:03+00:00","og_image":[{"width":1280,"height":800,"url":"https:\/\/myretina.gr\/wp-content\/uploads\/2025\/12\/posts-fallback.png","type":"image\/png"}],"author":"ILUMA Digital Agency","twitter_card":"summary_large_image","twitter_misc":{"Written by":"ILUMA Digital Agency"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/myretina.gr\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/#article","isPartOf":{"@id":"https:\/\/myretina.gr\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/"},"author":{"name":"ILUMA Digital Agency","@id":"https:\/\/myretina.gr\/en\/#\/schema\/person\/a3469ba40972eff718c53dda408709fc"},"headline":"\u039a\u03b1\u03c4\u03b1\u03b4\u03c5\u03c4\u03b9\u03ba\u03ac \u03bc\u03ac\u03c4\u03b9\u03b1: \u039f\u03b9 \u03b1\u03c0\u03b1\u03b9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03bf\u03c1\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03b4\u03cd\u03c4\u03b5\u03c2","datePublished":"2025-07-04T11:00:03+00:00","mainEntityOfPage":{"@id":"https:\/\/myretina.gr\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/"},"wordCount":3,"commentCount":0,"publisher":{"@id":"https:\/\/myretina.gr\/en\/#organization"},"image":{"@id":"https:\/\/myretina.gr\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/#primaryimage"},"thumbnailUrl":"https:\/\/myretina.gr\/wp-content\/uploads\/2025\/12\/posts-fallback.png","articleSection":["\u0395\u03c0\u03b9\u03c3\u03c4\u03b7\u03bc\u03bf\u03bd\u03b9\u03ba\u03ac \u039d\u03ad\u03b1"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/myretina.gr\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/myretina.gr\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/","url":"https:\/\/myretina.gr\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/","name":"Diving eyes: The visibility requirements for divers - myRetina Standard Ophthalmology Center - Athens","isPartOf":{"@id":"https:\/\/myretina.gr\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/myretina.gr\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/#primaryimage"},"image":{"@id":"https:\/\/myretina.gr\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/#primaryimage"},"thumbnailUrl":"https:\/\/myretina.gr\/wp-content\/uploads\/2025\/12\/posts-fallback.png","datePublished":"2025-07-04T11:00:03+00:00","breadcrumb":{"@id":"https:\/\/myretina.gr\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/myretina.gr\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/myretina.gr\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/#primaryimage","url":"https:\/\/myretina.gr\/wp-content\/uploads\/2025\/12\/posts-fallback.png","contentUrl":"https:\/\/myretina.gr\/wp-content\/uploads\/2025\/12\/posts-fallback.png","width":1280,"height":800},{"@type":"BreadcrumbList","@id":"https:\/\/myretina.gr\/katadytika-matia-oi-apaitiseis-oratotitas-gia-tous-dytes\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/myretina.gr\/en\/"},{"@type":"ListItem","position":2,"name":"\u039a\u03b1\u03c4\u03b1\u03b4\u03c5\u03c4\u03b9\u03ba\u03ac \u03bc\u03ac\u03c4\u03b9\u03b1: \u039f\u03b9 \u03b1\u03c0\u03b1\u03b9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03bf\u03c1\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03c5\u03c2 \u03b4\u03cd\u03c4\u03b5\u03c2"}]},{"@type":"WebSite","@id":"https:\/\/myretina.gr\/en\/#website","url":"https:\/\/myretina.gr\/en\/","name":"myRetina","description":"Standard Ophthalmology Center - Athens","publisher":{"@id":"https:\/\/myretina.gr\/en\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/myretina.gr\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/myretina.gr\/en\/#organization","name":"myRetina","url":"https:\/\/myretina.gr\/en\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/myretina.gr\/en\/#\/schema\/logo\/image\/","url":"https:\/\/myretina.gr\/wp-content\/uploads\/2025\/11\/Final-Logo-MyRetina.png","contentUrl":"https:\/\/myretina.gr\/wp-content\/uploads\/2025\/11\/Final-Logo-MyRetina.png","width":1448,"height":988,"caption":"myRetina"},"image":{"@id":"https:\/\/myretina.gr\/en\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/myretina.gr\/en\/#\/schema\/person\/a3469ba40972eff718c53dda408709fc","name":"ILUMA Digital Agency","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/70f08b7620b6cf28453deeee79a5fd77c95e4ade8cc6b3dd63b1a73a82d4c95c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/70f08b7620b6cf28453deeee79a5fd77c95e4ade8cc6b3dd63b1a73a82d4c95c?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/70f08b7620b6cf28453deeee79a5fd77c95e4ade8cc6b3dd63b1a73a82d4c95c?s=96&d=mm&r=g","caption":"ILUMA Digital Agency"},"sameAs":["https:\/\/iluma.gr"],"url":"https:\/\/myretina.gr\/en\/author\/supportiluma-gr\/"}]}},"_links":{"self":[{"href":"https:\/\/myretina.gr\/en\/wp-json\/wp\/v2\/posts\/1572","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/myretina.gr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/myretina.gr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/myretina.gr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/myretina.gr\/en\/wp-json\/wp\/v2\/comments?post=1572"}],"version-history":[{"count":0,"href":"https:\/\/myretina.gr\/en\/wp-json\/wp\/v2\/posts\/1572\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/myretina.gr\/en\/wp-json\/wp\/v2\/media\/216"}],"wp:attachment":[{"href":"https:\/\/myretina.gr\/en\/wp-json\/wp\/v2\/media?parent=1572"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/myretina.gr\/en\/wp-json\/wp\/v2\/categories?post=1572"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/myretina.gr\/en\/wp-json\/wp\/v2\/tags?post=1572"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}