{"id":1896,"date":"2025-10-22T10:44:05","date_gmt":"2025-10-22T08:44:05","guid":{"rendered":"https:\/\/okuvision.de\/frequently-asked-questions\/"},"modified":"2026-04-30T16:29:38","modified_gmt":"2026-04-30T14:29:38","slug":"faq-retinitis-pigmentosa","status":"publish","type":"page","link":"https:\/\/okuvision.de\/en\/faq-retinitis-pigmentosa\/","title":{"rendered":"FAQ"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row unlock_row_content=&#8221;yes&#8221; row_height_percent=&#8221;0&#8243; override_padding=&#8221;yes&#8221; h_padding=&#8221;0&#8243; top_padding=&#8221;0&#8243; bottom_padding=&#8221;0&#8243; back_color=&#8221;color-206913&#8243; overlay_alpha=&#8221;50&#8243; gutter_size=&#8221;3&#8243; column_width_percent=&#8221;100&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243; content_parallax=&#8221;0&#8243; uncode_shortcode_id=&#8221;142285&#8243; back_color_type=&#8221;uncode-palette&#8221;][vc_column width=&#8221;1\/1&#8243;]\n<div id=\"cvc-hero_image-6acc074dc6fdd\" class=\"cvc-element cvc-hero-image cvc-hero-image--violet cvc-hero-image--headline-hl-xl cvc-hero-image--text-large cvc-pattern-top-right-pattern cvc-pattern-bottom-left-pattern\" role=\"region\" aria-label=\"Frequently asked questions about OkuStim\u00ae and retinitis pigmentosa\">\n    \n    <!-- Background Patterns -->\n            <div class=\"cvc-hero-image__pattern cvc-hero-image__pattern--left\" aria-hidden=\"true\"><\/div>\n                <div class=\"cvc-hero-image__pattern cvc-hero-image__pattern--right\" aria-hidden=\"true\"><\/div>\n        \n    <!-- Content Container (max-width, centered) -->\n    <div class=\"cvc-hero-image__container\">\n        \n        <div class=\"cvc-hero-image__inner\">\n            <div class=\"cvc-hero-image__content\">\n                \n                                \n                                                        <h1 class=\"cvc-hero-image__headline font-714446 fontsize-431854\">\n                        Frequently asked questions about OkuStim\u00ae and retinitis pigmentosa                    <\/h1>\n                                \n                <div class=\"cvc-hero-image__text-wrapper\">\n                                            <div class=\"cvc-hero-image__text-content text-lead\">\n                            <p>What exactly is TES? How does OkuStim\u00ae work? Who can benefit from the therapy? On this page, you will find answers to the most important questions about the therapy, the OkuStim\u00ae 2 device, and the condition retinitis pigmentosa.<\/p>\n                        <\/div>\n                                        \n                                    <\/div>\n                \n                                \n            <\/div>\n            \n            <!-- Image (breaks out to right edge) -->\n                            <div class=\"cvc-hero-image__image\">\n                    <img width=\"2100\" height=\"1248\" src=\"https:\/\/okuvision.de\/wp-content\/uploads\/2025\/12\/AUGE_makro_sw.webp\" class=\"attachment-full size-full\" alt=\"Frequently asked questions about OkuStim\u00ae and retinitis pigmentosa\" loading=\"lazy\" decoding=\"async\" srcset=\"https:\/\/okuvision.de\/wp-content\/uploads\/2025\/12\/AUGE_makro_sw.webp 2100w, https:\/\/okuvision.de\/wp-content\/uploads\/2025\/12\/AUGE_makro_sw-300x178.webp 300w, https:\/\/okuvision.de\/wp-content\/uploads\/2025\/12\/AUGE_makro_sw-1024x609.webp 1024w, https:\/\/okuvision.de\/wp-content\/uploads\/2025\/12\/AUGE_makro_sw-768x456.webp 768w, https:\/\/okuvision.de\/wp-content\/uploads\/2025\/12\/AUGE_makro_sw-1536x913.webp 1536w, https:\/\/okuvision.de\/wp-content\/uploads\/2025\/12\/AUGE_makro_sw-2048x1217.webp 2048w, https:\/\/okuvision.de\/wp-content\/uploads\/2025\/12\/AUGE_makro_sw-350x208.webp 350w\" sizes=\"auto, (max-width: 2100px) 100vw, 2100px\" \/>                <\/div>\n                    <\/div>\n        \n    <\/div>\n    \n<\/div>\n\n\n[\/vc_column][\/vc_row][vc_row row_height_percent=&#8221;0&#8243; override_padding=&#8221;yes&#8221; h_padding=&#8221;2&#8243; top_padding=&#8221;3&#8243; bottom_padding=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; gutter_size=&#8221;3&#8243; column_width_percent=&#8221;100&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243; content_parallax=&#8221;0&#8243; uncode_shortcode_id=&#8221;134902&#8243;][vc_column width=&#8221;1\/1&#8243;][vc_custom_heading uncode_shortcode_id=&#8221;213128&#8243;]Questions about retinitis pigmentosa[\/vc_custom_heading][vc_column_text uncode_shortcode_id=&#8221;192823&#8243;]Clear answers on the causes, symptoms, progression, and diagnosis of RP.[\/vc_column_text][vc_accordion typography=&#8221;advanced&#8221; sign=&#8221;plus&#8221; gutter_simple=&#8221;0&#8243; heading_semantic=&#8221;h3&#8243; titles_size=&#8221;h4&#8243; cvc_color_scheme=&#8221;violet&#8221; cvc_background_color=&#8221;light-gray&#8221; uncode_shortcode_id=&#8221;108876&#8243; active_tab=&#8221;999&#8243;][vc_accordion_tab gutter_size=&#8221;2&#8243; column_padding=&#8221;2&#8243; title=&#8221;What is retinitis pigmentosa?&#8221; tab_id=&#8221;1758294612-1-91764606128698&#8243;][vc_row_inner row_inner_height_percent=&#8221;0&#8243; overlay_alpha=&#8221;50&#8243; gutter_size=&#8221;3&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243; uncode_shortcode_id=&#8221;561844&#8243;][vc_column_inner column_width_percent=&#8221;100&#8243; gutter_size=&#8221;2&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; width=&#8221;1\/1&#8243; uncode_shortcode_id=&#8221;746443&#8243;][vc_column_text uncode_shortcode_id=&#8221;376573&#8243;]Retinitis pigmentosa (RP) is a hereditary retinal disease in which the light-sensitive cells in the retina slowly degenerate. The disease usually progresses insidiously and eventually leads to severe visual impairment.[\/vc_column_text][vc_button button_color=&#8221;color-312440&#8243; size=&#8221;btn-sm&#8221; border_width=&#8221;0&#8243; button_color_type=&#8221;uncode-palette&#8221; uncode_shortcode_id=&#8221;609996&#8243; link=&#8221;url:https%3A%2F%2Fokuvision.de%2Fen%2Fretinitis-pigmentosa-symptoms%2F|title:Learn%20more%20about%20retinitis%20pigmentosa&#8221;]Learn more about retinitis pigmentosa[\/vc_button][\/vc_column_inner][\/vc_row_inner][\/vc_accordion_tab][vc_accordion_tab gutter_size=&#8221;2&#8243; column_padding=&#8221;2&#8243; title=&#8221;How is RP diagnosed?&#8221; tab_id=&#8221;1758294612-2-451764606128698&#8243;][vc_row_inner][vc_column_inner column_width_percent=&#8221;100&#8243; gutter_size=&#8221;2&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; width=&#8221;1\/1&#8243; uncode_shortcode_id=&#8221;164952&#8243;][vc_column_text uncode_shortcode_id=&#8221;141145&#8243;]Through ophthalmological examinations such as visual field measurement, ERG (electroretinogram), OCT, or genetic tests. The diagnosis is made in specialized centers.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_accordion_tab][vc_accordion_tab gutter_size=&#8221;2&#8243; column_padding=&#8221;2&#8243; title=&#8221;Is there a cure?&#8221; tab_id=&#8221;1759218552822-2-61764606128698&#8243;][vc_row_inner][vc_column_inner width=&#8221;1\/1&#8243;][vc_column_text uncode_shortcode_id=&#8221;312863&#8243;]Not currently. However, there are therapeutic approaches, such as TES therapy, that can slow down the progression of the disease.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_accordion_tab][\/vc_accordion][\/vc_column][\/vc_row][vc_row row_height_percent=&#8221;0&#8243; override_padding=&#8221;yes&#8221; h_padding=&#8221;2&#8243; top_padding=&#8221;3&#8243; bottom_padding=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; gutter_size=&#8221;3&#8243; column_width_percent=&#8221;100&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243; content_parallax=&#8221;0&#8243; uncode_shortcode_id=&#8221;134902&#8243;][vc_column width=&#8221;1\/1&#8243;][vc_custom_heading uncode_shortcode_id=&#8221;423682&#8243;]Questions about TES therapy[\/vc_custom_heading][vc_column_text uncode_shortcode_id=&#8221;125838&#8243;]How transcorneal electrical stimulation works, who it is suitable for, and what is known about its benefits and safety.[\/vc_column_text][vc_accordion typography=&#8221;advanced&#8221; sign=&#8221;plus&#8221; gutter_simple=&#8221;0&#8243; heading_semantic=&#8221;h3&#8243; titles_size=&#8221;h4&#8243; cvc_color_scheme=&#8221;violet&#8221; cvc_background_color=&#8221;light-gray&#8221; uncode_shortcode_id=&#8221;108876&#8243; active_tab=&#8221;999&#8243;][vc_accordion_tab gutter_size=&#8221;2&#8243; column_padding=&#8221;2&#8243; title=&#8221;What does TES mean?&#8221; tab_id=&#8221;1759218556287-4-417646061286988&#8243;][vc_row_inner][vc_column_inner width=&#8221;1\/1&#8243;][vc_column_text uncode_shortcode_id=&#8221;787016&#8243;]TES stands for transcorneal electrical stimulation. Weak electrical impulses are used to stimulate retinal cells via the cornea to maintain their function.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_accordion_tab][vc_accordion_tab gutter_size=&#8221;2&#8243; column_padding=&#8221;2&#8243; title=&#8221;How does TES therapy work?&#8221; tab_id=&#8221;1764606518222-5-05&#8243;][vc_row_inner][vc_column_inner width=&#8221;1\/1&#8243;][vc_column_text uncode_shortcode_id=&#8221;162964&#8243;]Patients place a special electrode on their eye. The neurostimulator transmits electrical impulses for approximately 30 minutes. This is intended to positively influence cell metabolism.[\/vc_column_text][vc_button button_color=&#8221;color-312440&#8243; size=&#8221;btn-sm&#8221; border_width=&#8221;0&#8243; button_color_type=&#8221;uncode-palette&#8221; uncode_shortcode_id=&#8221;386968&#8243; link=&#8221;url:https%3A%2F%2Fokuvision.de%2Fen%2Fretinitis-pigmentosa-research-evidence%2F|title:Further%20details%20on%20TES%20therapy&#8221;]Further details on TES therapy[\/vc_button][\/vc_column_inner][\/vc_row_inner][\/vc_accordion_tab][vc_accordion_tab gutter_size=&#8221;2&#8243; column_padding=&#8221;2&#8243; title=&#8221;How often is TES applied?&#8221; tab_id=&#8221;1764606571712-6-42&#8243;][vc_row_inner][vc_column_inner width=&#8221;1\/1&#8243;][vc_column_text uncode_shortcode_id=&#8221;162964&#8243;]Typically once a week for 30 minutes at home.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_accordion_tab][vc_accordion_tab gutter_size=&#8221;2&#8243; column_padding=&#8221;2&#8243; title=&#8221;Is TES safe?&#8221; tab_id=&#8221;1764606590522-7-09&#8243;][vc_row_inner][vc_column_inner width=&#8221;1\/1&#8243;][vc_column_text uncode_shortcode_id=&#8221;936661&#8243;]Yes. Studies show that the method is well-tolerated. Side effects are rare and usually harmless (e.g., dry eye sensation).[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_accordion_tab][\/vc_accordion][\/vc_column][\/vc_row][vc_row row_height_percent=&#8221;0&#8243; override_padding=&#8221;yes&#8221; h_padding=&#8221;2&#8243; top_padding=&#8221;3&#8243; bottom_padding=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; gutter_size=&#8221;3&#8243; column_width_percent=&#8221;100&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243; content_parallax=&#8221;0&#8243; uncode_shortcode_id=&#8221;134902&#8243;][vc_column width=&#8221;1\/1&#8243;][vc_custom_heading uncode_shortcode_id=&#8221;360394&#8243;]Questions about OkuStim\u00ae therapy[\/vc_custom_heading][vc_column_text uncode_shortcode_id=&#8221;120709&#8243;]Home use, prescription, costs, and support\u2014everything you need to know about the OkuStim\u00ae system at a glance.[\/vc_column_text][vc_accordion typography=&#8221;advanced&#8221; sign=&#8221;plus&#8221; gutter_simple=&#8221;0&#8243; heading_semantic=&#8221;h3&#8243; titles_size=&#8221;h4&#8243; cvc_color_scheme=&#8221;violet&#8221; cvc_background_color=&#8221;light-gray&#8221; uncode_shortcode_id=&#8221;108876&#8243; active_tab=&#8221;999&#8243;][vc_accordion_tab gutter_size=&#8221;2&#8243; column_padding=&#8221;2&#8243; title=&#8221;What is the OkuStim\u00ae system?&#8221; tab_id=&#8221;1764606645692-9-47&#8243;][vc_row_inner][vc_column_inner column_width_percent=&#8221;100&#8243; gutter_size=&#8221;2&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; width=&#8221;1\/1&#8243; uncode_shortcode_id=&#8221;136777&#8243;][vc_column_text uncode_shortcode_id=&#8221;482836&#8243;]The core is the headset, which integrates the actual neurostimulator as well as the electrode holders. Additionally, special electrodes are included.[\/vc_column_text][vc_button button_color=&#8221;color-312440&#8243; size=&#8221;btn-sm&#8221; border_width=&#8221;0&#8243; button_color_type=&#8221;uncode-palette&#8221; uncode_shortcode_id=&#8221;545330&#8243; link=&#8221;url:https%3A%2F%2Fokuvision.de%2Fen%2Fokustim-application%2F|title:Get%20a%20detailed%20overview%20of%20the%20device.&#8221;]Get a detailed overview of the device.[\/vc_button][\/vc_column_inner][\/vc_row_inner][\/vc_accordion_tab][vc_accordion_tab gutter_size=&#8221;2&#8243; column_padding=&#8221;2&#8243; title=&#8221;Where can I get the device?&#8221; tab_id=&#8221;1764606743312-10-65&#8243;][vc_row_inner][vc_column_inner width=&#8221;1\/1&#8243;][vc_column_text uncode_shortcode_id=&#8221;207109&#8243;]After a prescription from an ophthalmologist, you can obtain the system from an authorized supplier.[\/vc_column_text][vc_button button_color=&#8221;color-312440&#8243; size=&#8221;btn-sm&#8221; border_width=&#8221;0&#8243; button_color_type=&#8221;uncode-palette&#8221; uncode_shortcode_id=&#8221;937305&#8243; link=&#8221;url:https%3A%2F%2Fokuvision.de%2Fen%2Fpartner%2F|title:Find%20a%20supplier%20near%20you&#8221;]Find a supplier near you[\/vc_button][\/vc_column_inner][\/vc_row_inner][\/vc_accordion_tab][vc_accordion_tab gutter_size=&#8221;2&#8243; column_padding=&#8221;2&#8243; title=&#8221;How do I learn to use it?&#8221; tab_id=&#8221;1764606845388-11-39&#8243;][vc_row_inner][vc_column_inner width=&#8221;1\/1&#8243;][vc_column_text uncode_shortcode_id=&#8221;999037&#8243;]Instruction is provided by medical professionals directly at the point of sale.<br \/>\nWe have summarized the most important steps for you here.<br \/>\nAdditionally, you can read all the details in the instructions for use.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_accordion_tab][vc_accordion_tab gutter_size=&#8221;2&#8243; column_padding=&#8221;2&#8243; title=&#8221;Who covers the costs?&#8221; tab_id=&#8221;1764606862832-12-22&#8243;][vc_row_inner][vc_column_inner width=&#8221;1\/1&#8243;][vc_column_text uncode_shortcode_id=&#8221;202343&#8243;]TES therapy is currently not part of routine health insurance coverage. Reimbursement may be possible on a case-by-case basis upon application.[\/vc_column_text][vc_button button_color=&#8221;color-312440&#8243; size=&#8221;btn-sm&#8221; border_width=&#8221;0&#8243; button_color_type=&#8221;uncode-palette&#8221; uncode_shortcode_id=&#8221;171227&#8243; link=&#8221;url:https%3A%2F%2Fokuvision.de%2Fen%2Fget-okustim%2F|title:More%20about%20cost%20reimbursement&#8221;]More about cost reimbursement[\/vc_button][\/vc_column_inner][\/vc_row_inner][\/vc_accordion_tab][vc_accordion_tab gutter_size=&#8221;2&#8243; column_padding=&#8221;2&#8243; title=&#8221;Are there experiences from affected individuals?&#8221; tab_id=&#8221;1764607163642-13-23&#8243;][vc_row_inner][vc_column_inner width=&#8221;1\/1&#8243;][vc_column_text uncode_shortcode_id=&#8221;931019&#8243;]Yes, in our user portraits, affected individuals share their experiences with OkuStim\u00ae.<br \/>\n<a href=\"https:\/\/okuvision.de\/en\/patient-stories\/\">Patient Stories<\/a>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][\/vc_accordion_tab][vc_accordion_tab gutter_size=&#8221;2&#8243; column_padding=&#8221;2&#8243; title=&#8221;Where can I find the instructions for use?&#8221; tab_id=&#8221;1764607229102-14-51&#8243;][vc_row_inner][vc_column_inner width=&#8221;1\/1&#8243;][vc_column_text uncode_shortcode_id=&#8221;191919&#8243;]In the Service Materials &amp; Downloads section, we provide the instructions for use in various languages.[\/vc_column_text][vc_button button_color=&#8221;color-312440&#8243; size=&#8221;btn-sm&#8221; border_width=&#8221;0&#8243; button_color_type=&#8221;uncode-palette&#8221; uncode_shortcode_id=&#8221;170740&#8243; link=&#8221;url:https%3A%2F%2Fokuvision.de%2Fen%2Fdownloads%2F|title:To%20the%20download%20area&#8221;]To the download area[\/vc_button][\/vc_column_inner][\/vc_row_inner][\/vc_accordion_tab][\/vc_accordion][\/vc_column][\/vc_row][vc_row row_height_percent=&#8221;0&#8243; override_padding=&#8221;yes&#8221; h_padding=&#8221;2&#8243; top_padding=&#8221;3&#8243; bottom_padding=&#8221;3&#8243; back_color=&#8221;color-206913&#8243; overlay_alpha=&#8221;50&#8243; gutter_size=&#8221;3&#8243; column_width_percent=&#8221;100&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243; content_parallax=&#8221;0&#8243; uncode_shortcode_id=&#8221;118356&#8243; back_color_type=&#8221;uncode-palette&#8221;][vc_column column_width_percent=&#8221;100&#8243; align_horizontal=&#8221;align_center&#8221; gutter_size=&#8221;4&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; width=&#8221;1\/1&#8243; uncode_shortcode_id=&#8221;152446&#8243;][vc_custom_heading text_font=&#8221;font-714446&#8243; text_size=&#8221;fontsize-914237&#8243; text_weight=&#8221;300&#8243; uncode_shortcode_id=&#8221;109998&#8243;]Insights into Therapy,<br 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