Authors: SONIYA AGRAWAL<\/a> The Print<\/p>\n\n\n\n Dinesh Gupta, 56, of Ahmedabad has lost his vision partially and says it happened after he contracted Covid-19 in June. \u201cOn 10 June, I was admitted to hospital because I tested positive. A few days after I was discharged on 18 June, I noticed black spots in my vision and immediately rushed to hospital. After my initial scans, the doctor told me that I would have to be rushed for surgery.\u201d<\/p>\n\n\n\n Gupta said he has been told he will have to permanently undergo treatment in his left eye for cataract-like symptoms, a problem he didn\u2019t have before. <\/p>\n\n\n\n Meanwhile, Deepak Patel, a 27-year-old daily-wage labourer in Ahmedabad who has recovered from Covid-19, has lost 80 per cent of his vision, having suffered severe retinal damage due to a vascular blockage. <\/p>\n\n\n\n \u201cA week after I recovered from Covid, I felt my vision blurring. Initially, my physician told me that it was possibly due to post-Covid fatigue. As days passed, my vision got worse and I was referred to a retina specialist. I was given injections to make the clot go away,\u201d he said, adding that he is unlikely to recover his vision.<\/p>\n\n\n\n Dr Harjit Singh Bhatti of the All India Institute of Medical Sciences (AIIMS) Delhi said he has not \u201ccome across a lot of Covid patients complaining of eye damage\u201d. \u201cBut in the past few days, I have had one patient complain of loss of vision. Since she was old and a recovered Covid-19 patient we could not find the cause of the blindness,\u201d he said.<\/p>\n\n\n\n Doctors say there are no large-scale studies so far to conclusively prove a connection between Covid-19 and vision problems, but many recovered patients have been reporting eye issues. A possible explanation offered for this phenomenon is that Covid infection has been linked to thrombosis, or the emergence of clots in the body\u2019s circulatory system.<\/p>\n\n\n\n Speaking to ThePrint, doctors say there is not enough evidence for recovered patients of Covid-19 to begin worrying just yet, but urge caution. They advise early intervention for any vision problem experienced in the aftermath of a Covid infection. <\/p>\n\n\n\n Dr Parth Rana, an Ahmedabad-based ophthalmologist who runs a private hospital, said he had been visited by at least 12 recovered Covid patients for consultations on eye problems. <\/p>\n\n\n\n According to ophthalmologists, recovered Covid-19 patients have been primarily reporting two types of eyesight-related problems. <\/p>\n\n\n\n The first \u2014 and more common \u2014 is temporary loss of vision due to a suspected weakening of muscles. \u201cPost Covid-19, most patients complain of fatigue. This means that the muscles of their body do not have enough energy to function, because of which their eye muscles get weak and they witness a blurring of vision,\u201d said Dr Rana.<\/p>\n\n\n\n \u201cThis is the milder of the two problems and patients usually recover and are able to regain their eyesight once their body is able to effectively heal and provide enough fuel for the muscles to function,\u201d he added.<\/p>\n\n\n\n The second issue is the more problematic one. Opthamologists refer to it as central retinal artery occlusion or \u201cvascular blockage\u201d. <\/p>\n\n\n\n In June, it was reported that autopsies<\/a> conducted on Covid patients revealed that the disease is not just respiratory, but also ravages the circulatory system. Other pieces of research <\/a>as well as doctor experiences <\/a>have pointed to a link between Covid-19 and thrombosis, or clotting in blood vessels, which can obstruct the flow of blood through the circulatory system. <\/p>\n\n\n\n While some vessels (arteries and veins) are big enough to let the clots travel, others \u2014 like those in the eyes or hands \u2014 are too narrow. A clot passing through the vessels in the eyes can thus get stuck and stop the blood supply to the retina. <\/p>\n\n\n\n Bengaluru-based ophthalmologist Dr Rajashekar Y.L. said, \u201cWe have been seeing a lot of Covid-19 recovered patients coming to eye hospitals after weeks to months of recovery with various eye conditions.\u201d<\/p>\n\n\n\n According to Rajashekar, who serves as president of the Karnataka Ophthalmic Society, \u201csome of the more common eye problems we are seeing are redness of eyes and conjunctivitis-like conditions, a corneal condition called keratitis (inflammation of the cornea), conjunctival chemosis, which appears like swollen eyes, double vision due to nerve paralysis in the eye, and cases of vascular blockages as well\u201d.<\/p>\n\n\n\n Dr Subhendu Boral, a retina specialist based out of Kolkata, said he had also witnessed \u201cincreased cases of central retinal artery occlusion (CRAO) or \u2018vascular blockage\u2019 along with conjunctivitis-like conditions\u201d. <\/p>\n\n\n\n \u201cI have seen a particular increase in referrals of patients with CRAO, a rare disease, which previously had an incidence rate of 1-2 patients a year. This year, in the last six months, I have treated about 7 such (recovered Covid) patients. These numbers may seem small but considering the rarity of the disease this is about a 300 per cent rise in the number of cases.\u201d<\/p>\n\n\n\n Dr Boral said he would earlier not \u201cfeel the need for surgically operating such patients because they were too few in number\u201d, preferring a long-term approach with drugs. <\/p>\n\n\n\n \u201cWith the increasing incidence of such blockages, we are now exploring the possibility of operating and removing the thromboembolism,\u201d he added.<\/p>\n\n\n\n Dr Rana said he uses low-molecular-weight heparin (LMWH) or blood thinners to dissolve the clots in such patients. <\/p>\n\n\n\n \u201cIf this clot is not treated in the first four to six hours, then it can cause damage to the retina. But if this is left untreated for 24 hours or more, it can lead to permanent blindness,\u201d he added.<\/p>\n\n\n\n \u201cThis is why whenever a Covid patient complains of blindness or loss of eyesight, the doctor should immediately check their retina because it can lead to permanent damage in their eyes,\u201d said Rana. <\/p>\n\n\n\n While the use of blood thinners like aspirin is debatable and comes with its own side-effects, doctors say they are using them as precautionary treatment for Covid patients with comorbidities like diabetes and blood pressure, conditions which can lead to thickening of blood. <\/p>\n\n\n\n Dr Rajashekar said it is \u201cimportant that Covid-recovered patients keep a check to ensure good health of their eyes but they should, at the same time, not worry about losing eyesight as a side-effect of Covid\u201d. <\/p>\n\n\n\n \u201cTimely treatment and the right care is of the essence and can go a long way in ensuring good health for their eyes,\u201d he added.<\/p>\n\n\n\n While the trend of eye issues has been noticed across the country, Dr Rajashekar said it should be taken with a pinch of salt since there are no large-scale studies establishing a link between Covid and eye problems. <\/p>\n\n\n\n \u201cWe have come across several such cases by now and are seeing an increase in the number of cases with vascular blockage but their cause is still unknown,\u201d he added. <\/p>\n\n\n\n \u201cIt could possibly be because of Covid or because of old age. Studies on cardiovascular effects of Covid-19 have been conducted so far but no large-scale study has been conducted to address loss of eyesight as a long-term effect of Covid-19,\u201d he said. \u201cIt is a relatively new problem that has emerged among patients.\u201d<\/p>\n\n\n\n Dr Aparna Mukherjee, a scientist with the Indian Council of Medical Research (ICMR), India\u2019s apex medical research agency that has been at the forefront of the country\u2019s response to the pandemic, said they are keeping watch to assess if there is indeed a trend. <\/p>\n\n\n\n \u201cWe are observing the post-Covid clinics that are being set up but we need doctors to report such cases to us if they observe a recurring pattern. Once such cases are reported and a larger trend is observed, only then we can determine the causality of the problem. For now, there could be various reasons leading to such retinal problems,\u201d she added. <\/p>\n\n\n\n A doctor at the post-Covid-19 clinic at Safdarjung Hospital said they hadn\u2019t witnessed any cases of eye issues so far. \u201cWe have had a functional clinic for the last two months and we haven\u2019t had a lot of patients walking in. We have only had a few patients complain of fibrosis in lungs.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":" Doctors say there is not enough evidence for recovered patients of Covid-19 to begin worrying about losing sight, but urge caution and advise early intervention. Authors: SONIYA AGRAWAL The Print […]<\/p>\n","protected":false},"author":2,"featured_media":10096,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[721,161,932,634],"tags":[],"class_list":["post-5337","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blurry-vision","category-eyesight","category-retinal-vein-occlusions","category-vision"],"_links":{"self":[{"href":"https:\/\/cov19longhaulfoundation.org\/index.php?rest_route=\/wp\/v2\/posts\/5337","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cov19longhaulfoundation.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cov19longhaulfoundation.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cov19longhaulfoundation.org\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/cov19longhaulfoundation.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5337"}],"version-history":[{"count":1,"href":"https:\/\/cov19longhaulfoundation.org\/index.php?rest_route=\/wp\/v2\/posts\/5337\/revisions"}],"predecessor-version":[{"id":10095,"href":"https:\/\/cov19longhaulfoundation.org\/index.php?rest_route=\/wp\/v2\/posts\/5337\/revisions\/10095"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cov19longhaulfoundation.org\/index.php?rest_route=\/wp\/v2\/media\/10096"}],"wp:attachment":[{"href":"https:\/\/cov19longhaulfoundation.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5337"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cov19longhaulfoundation.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5337"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cov19longhaulfoundation.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5337"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n\n\n\nProblems patients are facing<\/strong><\/h3>\n\n\n\n
\n\n\n\n\u2018Take it with a pinch of salt\u2019<\/strong><\/h3>\n\n\n\n